if y=3x+4 and y=2x+8, find the value of both x and y.

Answers

Answer 1
[tex]\begin{cases}y=3x+4 \\ y=2x+8\end{cases}\rightarrow3x+4=2x+8\rightarrow3x-2x=4\rightarrow x=4[/tex]

having that x=4, we get that

[tex]y=2\cdot4+8=16[/tex]


Related Questions

Which of the following proportions can be used to solve the problem below?Suppose you are using a photocopier to reduce the size of a picture that is 10 inches wide by 12 inches long. If you reduce the picture so that it is 9 inches wide, how long will it be?

Answers

We are asked to determine the length of a picture that is originally 10 inches wide and 12 inches long.

By reducing it we must keep the same proportion between length and width. Therefore, the ratio between length and width must remain the same. The ratio between width and length is:

[tex]\frac{10}{12}[/tex]

Now, we set this equal to the ratio of the reduced picture:

[tex]\frac{10}{12}=\frac{9}{x}[/tex]

Therefore, the right proportion is B

c 1150Solve for the length of the arc, to the nearest tenth.2.08.016.150.3

Answers

ANSWER

8.0

EXPLANATION

If the central angle θ is in degrees and the radius is r, the length of the arc 's' is:

[tex]s=\frac{\theta}{360}\times2\pi r[/tex]

In this problem θ = 115º, r = 4:

which property is illustrated by the statement 8 + 2 equals 2 + 8? A. Associative B. commutative C. Distributive D. Identity

Answers

8+2=2+8 is result of the commutative property. Then, the answer is option B

(5x 10-6)(3x 10-4)(5x 10-6) (3 x 10 - 4) =PLS HELP IT’S DUE TNNNN !

Answers

we can multiply the normal numbers on the one hand and the scientific notation on the other hand

so

[tex]\begin{gathered} (5\times3)(10^{-6}\times10^{-4}) \\ (15)(10^{-6+(-4)}) \\ =15\times10^{-10}=1.5\times10^{-9} \end{gathered}[/tex]

Is TAG BAG? IF so, identif th similarity postulate or theorem that applies

Answers

Step 1

Given;

[tex]Triangle\text{ TAG \textasciitilde Triangle BAG}[/tex]

Required; To find the similarity postulate or theorem that applies.

Step 2

Both triangles share one side AG

They also have a common angle;

[tex]90^o[/tex]

Side AG = 10 units and ∠AGT ≅ ∠AGB.

Thus, options A and B are discarded.

Step 3

Now, as for the SAS criteria, we need two sides to be congruent and their included angles to be congruent.

But, as no other information is given, we cannot determine whether the given triangles are congruent or not.

Therefore, the answer is; Option D

[tex]cannot\text{ be determined}[/tex]

In the news you hear “ tuition is expected to increase from the current cost of $1,050 to $2,050 over the next ten years.” This represents a __% increase from the current tuition.

Answers

According to the information given in the exercise, the tuition is expected to increase from $1,050 to $2,050 over the next ten years.

Then, you need to use the following formula in order to solve this exercise:

[tex]Percentage\text{ }Increase=\frac{Final\text{ }value-Initial\text{ }value}{|Initial\text{ }value|}\cdot100[/tex]

In this case:

[tex]\begin{gathered} Initial\text{ }value=1,050 \\ Final\text{ }value=2,050 \end{gathered}[/tex]

Therefore, substituting these values into the formula and evaluating, you get:

[tex]\begin{gathered} PercentageIncrease=\frac{2,050-1,050}{|1,050|}\cdot100 \\ \\ PercentageIncrease=95.24 \end{gathered}[/tex]

Hence, the answer is: 95.24% increase.

HELP ASAP!

Put (-3y + 6 < x) in slope-intercept form.

Answers

Step-by-step explanation:

so slope intercept form is y=mx+b or in this case y<mx+b

so you just need to solve for y

start by subtracting 6 from both sides getting -3y< x + 6 than you just divided by a -3 when you divide by a negative number you have to change the inequality so you would get y> -(x+6)/3 that would be your answer hopefully that helps. have a great day

Find the sales tax and total cost of a wireless mouse that costs $20.99. The tax rate is 4%. Round your answer to the nearest cent.

Answers

Answer:

Sales tax = $0.84

Total cost = $21.07

Explanations:

Cost Price = $20.99

Tax rate = 4% = 4/100 = 0.04

Sales tax = (Tax rate) x (cost Price)

Sales tax = 0.04 x 20.99

Sales tax = $0.8396

Sales tax = $0.84 (to the nearest cent)

Total cost = Cost price + sales tax

Total cost = $20.99 + $0.84

Total cost = $21.074

Total cost = $21.07 (to the nearest cent)

Use the Trapezoidal Rule to approximate ∫2−1ex2dx using n=4. Round your answer to the nearest hundredth.

Answers

[tex]\begin{gathered} \int_{\text{ -}1}^2e^{x^2}=\frac{h}{2}(e^{(\text{ -1\rparen}^2}+e^{2^2}) \\ \\ h=(b\text{ - }a)/n=(2\text{ - \lparen-1\rparen\rparen/4=}\frac{3}{8}\text{ } \\ \int_{\text{ -1}}^2e^{x^2}=\frac{3}{8}(e+2e^{\frac{1}{16}}+2e^{\frac{1}{4}}+2e^{\frac{25}{16}}+e^4) \\ \\ =\frac{3}{8}(2.72+2.13+2.57+9.54+54.6) \\ \\ =\frac{3}{8}(71.56)=26.84 \end{gathered}[/tex]

what digit is in the

Answers

So, let's turn the notation from mixed number to fraction:

[tex]1\frac{11}{100}\text{ = }\frac{100}{100}+\frac{11}{100}=\text{ }\frac{111}{100}[/tex]

As you can see, the whole becomes 100/100 and then you just add the numerators.

Answer: 111/100

Hi, can you help me to solve this problem, please!!!

Answers

The given parabola is:

[tex]y=-3x^2+3x-6[/tex]

It is written in the form:

[tex]y=ax^2+bx+c[/tex]

The axis of symmetry is given by the following formula:

[tex]x=-\frac{b}{2a}[/tex]

Where a=-3 and b=3. Replace these values and solve for x:

[tex]\begin{gathered} x=-\frac{3}{2(-3)}=-\frac{3}{-6}=\frac{3}{6} \\ \text{Divide numerator and denominator by 3 to simplify} \\ x=\frac{3/3}{6/3}=\frac{1}{2} \end{gathered}[/tex]

Therefore, the axis of symmetry is x=1/2

What is the lateral surface area of the square pyramidrepresented by this net?11 ft8 ftEnter your answer in the box.11 ft11 ftA8 ft다ft?111 ft

Answers

[tex]240ft^2[/tex]Explanation:

Surface area of a square pyramid is given as:

[tex]\begin{gathered} \text{Surface area = }Area\text{ of base + }\frac{1}{2}PS \\ \text{where P = perimeter of base} \\ S\text{ = slant height} \end{gathered}[/tex][tex]\begin{gathered} \text{Area of base = area of square} \\ \text{Area of base = }(length)^2 \\ \text{length = 8 }ft \\ \text{Area of base = 8}^{\text{ 2}}=64ft^2 \end{gathered}[/tex][tex]\begin{gathered} \text{Perimeter of base = 4(length)} \\ \text{Perimeter of base = 4(8) = 32 ft} \end{gathered}[/tex][tex]\begin{gathered} \text{slant height = }11\text{ ft} \\ \\ \text{The surface area = 64 + }\frac{1}{2}(32\times11) \\ \\ \text{The surface area = 64 + }\frac{1}{2}(352) \end{gathered}[/tex][tex]\begin{gathered} \text{The surface area = 64 + 176} \\ \text{The surface area = }240ft^2 \end{gathered}[/tex]

A grain silo is shown below:168 ft6 ftWhat is the volume of grain that could completely fill this silo, rounded to the nearest whole number? Use22/7 for pi

Answers

Solution

Step 1

[tex]\begin{gathered} \text{The volume of the silo = volume of a cylinder + volume of the } \\ \text{ hemisphere} \\ The\text{ volume of the silo = }\pi r^2h\text{ + }\frac{2}{3}\pi r^3 \end{gathered}[/tex]

Step 2

[tex]\begin{gathered} \text{h = 168} \\ \text{r = 6} \end{gathered}[/tex]

Step 3

[tex]\begin{gathered} Volume\text{ = }\frac{22}{7}\times6^2\times\text{ 168 + }\frac{2}{3}\times\frac{22}{7}\times\text{ 6}^5 \\ Volume\text{ = }19008\text{ + 452.5714286} \\ Volume\text{ =19460.571 } \end{gathered}[/tex]

Final answer

19461

Give ordered pairs that are solutions and graph the equation.2y = 5x – 10Complete the ordered pairs so they are solutions to the given equation.

Answers

Answer:

The equation is given below as

[tex]2y=5x-10[/tex]

Concept:

To calculate the value of y when x=0, we will substitute the x=0 in the equation above and solve for y

By substituting the values, we will have

When x=0

[tex]\begin{gathered} 2y=5x-10 \\ 2y=5(0)-10 \\ 2y=-10 \\ \frac{2y}{2}=-\frac{10}{2} \\ y=-5 \\ (0,-5) \end{gathered}[/tex]

When x=1

[tex]\begin{gathered} 2y=5x-10 \\ 2y=5(1)-10 \\ 2y=5-10 \\ 2y=-5 \\ \frac{2y}{2}=-\frac{5}{2} \\ y=-2.5 \\ (0,-2.5) \end{gathered}[/tex]

When x=2

[tex]\begin{gathered} 2y=5x-10 \\ 2y=5(2)-10 \\ 2y=10-10 \\ 2y=0 \\ \frac{2y}{2}=\frac{0}{2} \\ y=0 \\ (2,0) \end{gathered}[/tex]

When x=3

[tex]\begin{gathered} 2y=5x-10 \\ 2y=5(3)-10 \\ 2y=15-10 \\ 2y=5 \\ \frac{2y}{2}=\frac{5}{2} \\ y=2.5 \\ (3,2.5) \end{gathered}[/tex]

When x=4

[tex]\begin{gathered} 2y=5x-10 \\ 2y=5(4)-10 \\ 2y=20-10 \\ 2y=10 \\ \frac{2y}{2}=\frac{10}{2} \\ y=5 \\ (4,5) \end{gathered}[/tex]

Hence,

By graphing using the ordered pairs below, we will have

[tex]\begin{gathered} (2,0) \\ (0,-5) \end{gathered}[/tex]

Share it: Due:Friday, Aug 28, 2020, 12:00 AM How is comparing and ordering rational numbers different from comparing and ordering integers? Be specific.

Answers

hello

to compare or know the difference between rational numbers and integers

rational numbers are numbers in which are expressed as fractions of two integers eg a/b where b is a non zero number

integers are whole numbers in mathemathics without the expression in fraction or rather they're expressed in fractions but the denominator must be equal to 1

now when we want to compare and order integers, they're prefereably done using the number line system.

for an integer

[tex]\begin{gathered} in\text{ the number line system} \\ -3>\text{ }-4 \\ 2\text{ }<\text{ 3} \end{gathered}[/tex]

while in rational numbers,

[tex]\begin{gathered} \frac{1}{2}\text{ }>\text{ }\frac{1}{4} \\ -\frac{2}{3}\text{ <}\frac{1}{2} \end{gathered}[/tex]

The diagonales of this rhombus are 3 meterse and 8 meters

Answers

Area of a rhombus = 1/2 x d1 x d2

d1= diagonal 1 = 8m

d2 = diagonal 2 = 3m

Replacing:

A = 1/2 x 8 x 3 = 12 m2

Neglecting air resistance, the distance (d) that an object fallsvaries directly as the square of the time (t) it has been falling.If an object falls 64 feet in 2 seconds, determine the distanceit will fall in 6 seconds.

Answers

[tex]d(t)=at^2[/tex]

where a is a constant, we can find a with the first statement:

"an object falls 64 feet in 2 seconds"

so:

[tex]\begin{gathered} 64=a(2)^2 \\ a=\frac{64}{2^2} \\ a=16 \end{gathered}[/tex]

the complete equation is

[tex]d(t)=16t^2[/tex]

now "determine the distance for 6seconds"

so, replace t=6 and find d

[tex]\begin{gathered} d(t)=16(6)^2 \\ d(t)=576ft \end{gathered}[/tex]

the distance is 576ft

Question #1: The International Special Olympics were held in New York City. The USA team won 25 medals; Gold
[8], Silver [10], and Bronze [7]. Using the table below, construct a frequency distribution table that includes both
the relative frequency and the frequency percentage.
Class Level rf f%
Gold
Silver
Bronze

Answers

The frequency distribution table includes both the relative frequency and the frequency percentage given below.

Class Level     Relative frequency       frequency %

Gold                8/25 × 100 = 0.032         32%

Silver              10/25 × 100 = 0.04           40%

Bronze            7/25 × 100 = 0.028         28%

What is Relative frequency?

The Relative frequency is an estimate or estimator of a probability in terms of statistics.

In straightforward situations, where the outcome of a trial just establishes whether the predetermined event has taken place, modeling using a binomial distribution may be suitable, and the empirical estimate is then the maximum likelihood estimate.

If specific conditions for the prior distribution of the probability are met, it is the Bayesian estimate for the same case. If a trial produces additional data, the relative frequency can be enhanced by adding new hypotheses in the form of a statistical model; if this model is fitted, it can be used to determine an estimate of the likelihood of the desired event.

To learn more about Relative frequency from the given link

https://brainly.com/question/16832475

#SPJ4

I'll upload pictures

Answers

Find similar triangles

Triangle PQS is similar to triangle PSR

Reason for this similarity is

RS/ PS = PS / QS

In consecuence

PS^2 = RS • QS

PART 3

RS = 4, RQ= 16. Find RP

Then

RP ^2 = RQ • RS

RP = √ (4•16) = 8

Can you help me find the angles of x°, R, Q, and P?

Answers

SOLUTION

Using the theorem

The sum of angles in a triangle is 180°

Then we have

[tex]P^0+Q^0+R^0=180^0[/tex]

from the diagram in the questions

[tex]\begin{gathered} P=x-11 \\ Q=3x+6 \\ R=x \end{gathered}[/tex]

Substituting the parameters we have

[tex]\begin{gathered} (x-11)^0+(3x+6)^0+x^0=180^0 \\ \text{ Remove the parenthesis} \\ x-11+3x+6+x=180^0 \\ \text{ Rearrange the expression} \\ x+3x+x+6-11=180^0 \end{gathered}[/tex]

Simplify the equation above

[tex]\begin{gathered} 5x-5=180^0 \\ 5x=180+5 \\ 5x=185 \\ \text{Divide both sides by 5} \\ x=\frac{185}{5} \end{gathered}[/tex]

Therefore

[tex]x=39^0^{}[/tex]

Hence

The value of x is 39°

What are the dimensions of a parallelogram in terms of the demensioms of the circle?

Answers

If we divide a circle into a number of equal segments then stack them in a row head-to-tail, the new shape is a parallelogram with bumpy sides, with the same area as the circle.

We can conclude the following:

1. The base of a parallelogram is approximately equal to half the circumference of the circle

2. The height of the parallelogram is approximately equal to the radius of the circle

3. The area of the parallelogram is equal to the area of the circle.

Assume the random variable x is normally distributed with mean μ = 83 and standard deviation o=4. Find the indicated probability.P(70

Answers

SOLUTION

Given the question in the image on the question tab;

[tex]P(70Now, we are going to find;[tex]P(-3.25[tex]Using\text{ statistical table for normal distribution; the probability is:}[/tex][tex]0.0662301762265\times100=6.623\%[/tex]

Final answer:

[tex]\begin{equation*} 6.623\% \end{equation*}[/tex]

Mrs. Burke's biology class has 128 students, classified by academic year and major, as illustrated in the table. Mrs. Burke randomly chooses one student to collectyesterday's work.Mrs. Burke's Biology ClassAcademic Year Biology MajorsFreshmenSophomoresJuniorsSeniors19171617Non-Biology Majors17141018Step 2 of 2: What is the probability that she selects a senior, given that she chooses a biology major? Enter a fraction or round your answer to 4 decimal places, ifnecessary.

Answers

Total: 128 students

1. The probability that she selects a senior, given that she chooses a biology major is given by:

[tex]P=\frac{seniors}{biolog\text{y majors}}=\frac{17}{19+17+16+17}=\frac{17}{69}=0.2464[/tex]

Answer: 0.2464

The Honeywell HQ17 air cleaner takes twice as long as the EV25 to clean the samevolume of air. Together the two machines can clean the air in a 25-ft by 24-ft banquetroom in 10 minutes. How long would it take each machine working alone to clean the airin the room?

Answers

Given:

The Honeywell HQ17 air cleaner takes twice as long as the EV25 to clean the same

volume of air.

Let, x be the time taken by Honeywell EV25 air cleaner.

And 2x be the time taken by Honeywell HQ17 air cleaner.

Together the two machines can clean the air in 10 min.

[tex]\begin{gathered} x+2x=10 \\ 3x=10 \\ x=\frac{10}{3}=3.33\text{ min} \end{gathered}[/tex]

So, time takes by Honeywell HQ17 air cleaner is,

[tex]2x=2(\frac{10}{3})=6.67\text{ min}[/tex]

Answer:

The time taken by Honeywell EV25 air cleaner is 3.33 min.

The time taken by Honeywell HQ17 air cleaner is 6.67 min.

Find the area of the triangle. Round to the nearest tenth. a=28.5 b=33.4 c=22.3

Answers

solution

for this case we can use the Herons formula given by:

[tex]A=\sqrt[]{s(s-a)(s-b)(s-c)}[/tex]

Where s is the semiperimeter given by:

[tex]s=\frac{a+b+c}{2}=\frac{33.4+28.5+22.3}{2}=42.1[/tex]

And we can find the area on this way:

[tex]A=\sqrt[]{42.1(42.1-33.4)(42.1-28.5)(42.1-22.3)}=314.05[/tex]

And rounded to the nearest tenth would be:

314.1

Compare two sequence 2 4 6 8 102 4 8 16 32

Answers

The given sequences are

[tex]\begin{gathered} 2,4,6,8,10\rightarrow(1) \\ 2,4,8,16,32\rightarrow(2) \end{gathered}[/tex]

In the sequence (1):

[tex]\begin{gathered} 4-2=2 \\ 6-4=2 \\ 8-6=2 \\ 10-8=2 \end{gathered}[/tex]

There is a common difference of 2

Then it is an arithmetic sequence

In the sequence (2):

[tex]\begin{gathered} \frac{4}{2}=2 \\ \frac{8}{4}=2 \\ \frac{16}{8}=2 \\ \frac{32}{16}=2 \end{gathered}[/tex]

There is a common ratio of 2

Then it is a geometric sequence

The first sequence is increasing by 2

The second sequence is multiplying by 2

14. A poll was taken of 13,875 working adults aged 40-70 to determine their level of education. The participants were classified by sex and by level of education. The results are shown below.Education LevelMaleFemaleTotalHigh School or Less299934306429Bachelor's Degree315131736324Master's Degree4975061003Ph.D.5465119Total6701717413,875A person is selected at random. Compute the following probabilities.(a) What is the probability that the selected person is a male? (b) What is the probability that the selected person does not have a Ph.D.? (c) What is the probability that the selected person has a Master's degree? (d) What is the probability that the selected person is female and has a Master's degree?

Answers

Part a

What is the probability that the selected person is a male?

P=6,701/13,875

P=0.4830

Part b

What is the probability that the selected person does not have a Ph.D.?

P=1-119/13,875

P=0.9914

Part c

What is the probability that the selected person has a Master's degree?

P=1,003/13,875

P=0.0723

Part d

What is the probability that the selected person is female and has a Master's degree?

P=506/13,875

P=0.0365

USMZABC = 40'and BỎ is the anglebisector of ZABC3y+6B.3x-134-2xD5y-18MZABD =[ ? 1°Enter

Answers

We want to calculate the value of

[tex]3x-1[/tex]

However, x is unknown. For BD is "angle bisector"

[tex]3x-1=34-2x[/tex]

Let us solve that equation for x:

[tex]3x+2x=34+1[/tex]

(-2x was sent to the left-hand side, and -1 was sent to the right-hand side)

[tex]5x=35[/tex][tex]x=7[/tex]

Then,

[tex]3x-1=3(7)-1=21-1=20[/tex]

Thus,

[tex]m\measuredangle ABD=20[/tex]

Let f(x) = 3x – 3 and g(x) = x + 5. Find f(g(x)) and g(f(x)).

Answers

given data:

[tex]\begin{gathered} f\mleft(x\mright)=3x-3 \\ g\mleft(x\mright)=x+5 \end{gathered}[/tex]

to find:

[tex]f\mleft(g\mleft(x\mright)\mright)\text{ and }g\mleft(f\mleft(x\mright)\mright)[/tex][tex]\begin{gathered} g(x)=x+5 \\ =f(x+5) \\ =3(x+5)-3 \\ =3x+12 \end{gathered}[/tex][tex]\begin{gathered} f(x)=3x-3 \\ =g(3x-3) \\ =(3x-3)+5 \\ =3x+2 \end{gathered}[/tex]

Given a right triangle, what is the measure of 2B if ZA = 35º and b = 7?(Round your answer to the nearest degree.)

Answers

Let us make a drawing of the triangle:

Let's remember that the three angles of a triangle add up to 180 degrees. Then,

[tex]\measuredangle A+\measuredangle B+\measuredangle C=180\degree[/tex]

Since our triangle is right, we have

[tex]\measuredangle C=90\degree[/tex]

Thus

[tex]35\degree+\measuredangle B+90\degree=180\degree[/tex][tex]\measuredangle B=180\degree-90\degree-35\degree=55\degree[/tex]

This means that the answer is 55°.

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