use elimination method to solve the system of equations -x+y=7 and x+y=1

Answers

Answer 1

Answer:

(x, y)= (-3, 4)

Step-by-step explanation:

eliminate the variable by adding the equations


Related Questions

hi everyone i got a 16/20 on a final what percent is that im jw

Answers

Answer:

80%

Step-by-step explanation:

A repairman leans the top of an 26 foot ladder against the
top of a stone wall. The base of the ladder is 4.7 feet from
the wall. How tall is the wall? (Use Pythagorean Theorem:
a² + b2= c2)

Answers

Answer:

26.42139285

Step-by-step explanation:

26x26 + 4.7x4.7 = c2

676 + 22.9 =c2

698.09=c2

square root of 698.09=26.42139285

26.42139285 = c

60>x and x >57
A x=61
B x=59
C x=50

Answers

x is b because 59 is less than 60 but greater than 57.

Hope this helped!!

Answer:

c

Step-by-step explanation:

EASY EXTRA POINTS HELP ASAP

Answers

Answer:

3 it 3 you got to haryy up it 3

Answer: number  2

Step-by-step explanation:

Which answer represents 81,020,000,000 in scientific notation?
OA)
9
81.02 X 10
W
ОВ)
10
8.102 x 10
OC)
9
8.102 x 10
OD)
11
0.8102 x 10

Answers

B. 8.102 x 10^10
Cuz 8.102 x 10 = 81,020,000,000

Answer:

The answer is: 8.102×10^10

DUE in a couple of minutes!!help me out with this question (geometry)

Answers

Angle 1 for the measurement it is going to be 58 degrees if that’s what you are looking for and if you are the equation is going to be 6(8)+10 and that will give you 58

What is the slope of the line in the graph?
-4/3
-3/4
3/4
4/3

Answers

Answer:

-3/4

Step-by-step explanation:

If you take two points, the rise is 3. Also, the change in y is 4. Since the line is going downwards from left to right, it has to be negative.  

Which of the following fractions is equivalent to 3/8


️ 6/14


️9/24


©️4/9


R 15/35

plzzz help I'm on a test I'll give u brainliest​

Answers

Answer:

9/24

Step-by-step explanation:

This is because when we multiply 3/8 with 3 in both numerator and denominator we get,

[tex] \frac{3 \times 3}{8 \times 3} = \frac{9}{24} [/tex]

Hence, 9/24 is required answer.

Answer:

9/24

Step-by-step explanation:

Fraction             Equivalent Fractions

3/8          6/16               9/24

Neal buys a board game. He pays for the board game and pays $1.54 in sales tax. The sales tax rate is 5.5%.What is the original price of the board game, before tax?

Answers

Answer:

28

Step-by-step explanation:

1.54 divided by 0.055 = 28

Cara makes a fruit drink using
apples and oranges. For every 1 apple she uses 3 oranges. She uses 20 fruits altogether. How many oranges does she use?

Answers

Answer:

15 oranges

Step-by-step explanation:

5×1=5

5×3=15

Find the numerical value of the log expression. \log a=7\hspace{15px} \log b=10\hspace{15px} \log c=3 loga=7logb=10logc=3 \log \frac{a^8c^2}{b^3} log b 3 a 8 c 2 ​

Answers

Answer:

  32

Step-by-step explanation:

  [tex]\log a=7\hspace{15px} \log b=10\hspace{15px} \log c=3\\\\ \log \dfrac{a^8c^2}{b^3}=8\log{a}+2\log{c}-3\log{b}=(8)(7)+(2)(3)-(3)(10)\\\\=56+6-30=\boxed{32}[/tex]

__

The applicable rules of logarithms are ...

  log(ab/c) = log(a) +log(b) -log(c)

  log(a^b) = b·log(a)

Last week, the price of gas was $2.25 per gallon. This week,
the price of gas has increased by 4%. What is the price of gas
this week?
G

Answers

Answer:

$2.25 + 4% = $2.34

It increased by 9 cents

Step-by-step explanation:

A triangle has side lengths 24,143 and 145 is it a right triangle?

Answers

Answer:

yes  last one

Step-by-step explanation:

The 7% sales tax on a new $3200 car need asap

Answers

The answer is 224.00

Answer:

7% of $3200 is $224 or if u meant

$3200 times 7 is still $224 because it’s by7%

Step-by-step explanation:

If staff salaries were $44,000/month last year, and the yearly labor cost increase from last year to this year is $108,000, what is the monthly labor cost this year?

Answers

Answer:

53,000

Step-by-step explanation:

Emily needs 21 feet of wire. Andy needs 15 feet of wire. How much will each of them spend for wire?

Answers

Answer:

$540.

Step-by-step explanation:

Aprrox some wire cost $15. And 21 x 15= 315. And 15 x 15= 225, so you add and you should have $540.

A local bakery sells cupcakes for $3.50 each. The fixed monthly cost totals $275 which includes rent, utilities, and wages. Each cupcake costs the bakery 0.90 to make.

Answers

Answer: 110 cupcakes

Step-by-step explanation:

Assuming this question is asking for the breakeven point, you can find that by using the formula:

= Fixed cost / Contribution margin

Contribution margin = Sales price - variable cost (amount to make one cupcake)

= 3.50 - 0.90

= $2.60

Breakeven point = 275 / 2.60

= 109.77

= 110 cupcakes

The formula for volume of this rectangular prism is:
V=2x(exponent is 3) +17x (exponent is 2) +46x

Answers

The answer for you question is 343

Please help out , i’ll mark the brainliest answer

Answers

Answer:

Step-by-step explanation:

7) The tangent angles are 90° each.

The angles of a quadrilateral add up to 360°, so ? = 360°-90°-90°-73° = 107°.

8)  Solve this the same way as question 7). ? = 360°-90°-90°-57° = 123°.

Questions 9) and 10) are cut off, so I assume you don't need to know those.

the first ones D) 107° and the second one A) 123°

the tangents r 90° btw and there’s a total of 360° in a quadrilateral so u do 360-90-90-(the angle eg 73)

Plz help don’t know

Answers

The horse would be the better idea!

Grade For This Exam Series
U 1 2.
On the grid, complete the
enlargement of the shaded
shape with a scale factor of 3

Answers

Answer:

12-3=9

Step-by-step explanation:

hdudhhduduur yruyrhd

help me pls this is 8th grade math fastest answer gets brainliest show work pls

Answers

Answer:

1: x ^11

2: y ^12

3: x^ 7

Step-by-step explanation:

In 1 we give the sum

In 2 we give the multiple

In 3 we minus

Answer:

1. x^11 2. x^7 3. y^12

Step-by-step explanation:

1. you add the exponents together 8+3 = 11 2. you subtract the exponents 9-2=7 3. you multiple the exponents 4x3=12

The maximum value of a data set consisting of 25
positive integers is 84. A new data set consisting of 26
positive integers is created by including 96 in the
original data set. Which of the following measures
must be 12 greater for the new data set than for the
original data set?

A) the mean
B)the median
C)the range
D)the standard deviation

Answers

The correct answer is c

The new data set's range must be greater than the original data set's range. which is the correct answer would be an option (C).

What is the range of the data?

The range of the data is defined as the difference between the maximum value of data and the minimum value of the data.

Let m be the smallest value in the original data collection.

Given that the original data set's range = 84 -m

A new data set is made up of 26 positive integers and 96 from the existing data set.

As a result, the new data set's range is 96-m.

We can now determine the difference between two ranges by subtracting them :

⇒ (96 - m) - (84 - m)

⇒ 96 - m - 84 + m

⇒ 12

As a result, the new data set's range must be greater than the original data set's range.

Hence, the correct answer would be an option (C).

To learn more about the range of the data click here:

https://brainly.com/question/20607770

#SPJ2

In your own words, describe what the word "congruent" means.

Answers

Answer:

heres a sentence using it

Eating five chocolate bars is not congruent with your plan for losing weight.

Triangles are considered congruent when they have the same angles.

it means

having the same size and shape

Answer:

Congruent

Step-by-step explanation:

Multiple objects the work well together.

Hope this helps (:

Joseph plots the speed of his car and time on a scatter plot. The equation for the line of best fit on his scatter plot is y = -15x + 60, where x is the time in hours and y is the speed in miles/hour. Which statement describes the situation correctly?
A.
The initial speed is 60 miles/hour, and his speed decreases by 15 miles/hour every hour.
B.
The initial speed is 60 miles/hour, and his speed increases by 15 miles/hour every hour.
C.
The initial speed is 0 miles/hour, and his speed increases by 15 miles/hour every hour.
D.
The initial speed is 5 miles/hour, and his speed increases by 30 miles/hour every hour.

Answers

Answer:

A

Step-by-step explanation:

His speed change is the slope or -15, decreases by 15 miles/hour

when he starts, his speed is 0*-15+60 = 60 miles/hour

Answer:

a

Step-by-step explanation:

Will give brainiest to correct answer with explanation

Suppose 9x + 12 donuts were sold on
Friday and 4x - 3 were sold on Saturday.
What is the total number of donuts sold?

Answers

Answer:

jesus is always the answer

Step-by-step explanation:

jesus jesus

Researchers were investigating whether there is a significant difference between two medications, R and S, designed to reduce fleas found on cats. From a sample of 300 cat owners, the researchers randomly assigned 150 cat owners to use medication R on their cats and the remaining cat owners to use medication S. For the cats using medication R, 88 percent had no fleas. For the cats using medication S, 90 percent had no fleas. Which of the following is the most appropriate method for analyzing the results?

A two-sample z -test for a difference in population proportions

A two-sample z-test for a difference in sample proportions

A one-sample z-test for a sample proportion

A one-sample z-test for a population proportion

A one-sample z-test for a difference in sample proportions

Answers

Answer:

A) A two-sample  z -test for a difference in population proportions

Step-by-step explanation:

To determine whether a difference in proportions is significant, the two-sample z-test for a difference in population proportions is the most appropriate method for the analysis.

The most appropriate method for analyzing the results is A. A two-sample z-test for a difference in population proportions.

What is the hypothesis?

In statistics, hypothesis testing is the process by which an analyst tests an assumption about a population's parameter.

In this scenario, we have two different treatments (medication R and S) applied to two separate samples (150 cat owners each) and we want to determine if there is a significant difference in the proportion of cats with no fleas between the two groups.

This is a classic scenario for a two-sample z-test for a difference in population proportions, which tests the hypothesis that the difference in proportions between two independent populations is equal to zero.

Thus, a two-sample z-test for a difference in population proportions.

Hence, the correct answer would be option (A)

To learn more about the z-test statistic click here:

brainly.com/question/29692242

#SPJ6

a rectangle has a area of 24 square untis and a side length of 3/4 units. find the other side of the rectangle.

Answers

Area = length x width
24 = 3/4w
Divide both sides by 3/4
32 = w

The other side is 32 units

HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP
HELP I NEED HELP ASAP

Answers

Answer:

B.

Step-by-step explanation:

A is the correct answer. The graph shifted two units down so it’s -2

I need help with this question it's for a important grade and if anyone can help that will be great.​

Answers

Basically you use the tan/sin/cos rules.

You have your opposite=13 and hypotenuse=33, so use sin to solve it.

sin^-1(opp/hyp)
=sin^-1(13/33)
=23 degree

Step-by-step explanation:

33+13+90=136+?=180

136-180=44

X=44

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