Mathematics Middle School

7x-20/4=-15 x = what?

Answers

Answer 1

Answer:

x =  negative 5 over 8  or
-0.625

Step-by-step explanation:

Isolate the variable by dividing the 2 sides

Answer 2

Answer:

x=-10/7

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable

Exact Form: x= -10/7

Decimal Form: x= -1.428571.........

Mixed Number Form: x= -1 and 3/7

Related Questions

BRAINLEST TO FIRST ANSWER question in attatchment, please list step by step

Answers

Answer:

well the anwser is true

Step-by-step explanation:

just me being in middle school i know its true.

(5,-3). You have to multiply negative -1 on the bottom equation and then you can cancel f and solve for g. Then plug g back in to find f

Please help very urgent!!! 35 pts.


What is the probability that Robert can get a tail using 1 coin and pick a yellow card from 1 deck and roll an E on 1 cube?

Answers

Answer:The probability of getting a red card is 1/2. When tossing two coins, the probability of getting one or two tails is 3/4. The probability of both of these

Step-by-step explanation:

this might be wrong im sorry if it is but it might be right here you go

I think it’s good on so Robert can get a tail using 1 coin and pick up a yellow card from deck 1 and roll an e on 1 cube bc he has the prop ability of 2

Hi! Can someone help me with the find the distance between two points. Thank you!

Answers

Answer:

7 units

Step-by-step explanation:

We can see that the two points can be drawn in a vertical line from each other. This means we only need to find the absolute value of the differences between the y-values.

So, 9 - 2 is equal to 7.

Answer:

7

Step-by-step explanation:

Their distance is

9 - 2 = 7

What does MAT mean in education?

Answers

Answer: Master of arts in teaching

Step-by-step explanation:

it's for people that want to teach or are teaching already and want to continue teaching in the classroom.

Need answer asap please and thank you.

Answers

Answer:

Side = 6cm

Step-by-step explanation: We know that volume of a cube = Side³

Volume = Side³

216 = side³

side =   3√216

Side = 6 inches

Answer: 6

Step-by-step explanation: a=6 v=216

v=a^3

216 divided by 1/3 =6

Part A
The table shows the cost of 4 tickets at two different laser tag facilities.


Laser Tag Facility Cost ($)
LaserFun 25
Laser Tag & More 27

What equation can be used to model the total cost, y, for x tickets at Laser Tag & More? Write the equation in the form y=kx .

Part B
Fill in the blank question.
The total cost of 7 tickets at Laser Tag & More is $
.

Answers

Answer:

¯\_(ツ)_/¯

Step-by-step explanation:

¯\_(ツ)_/¯

Part A:
27/4= $6.75 per ticket
y=6.75x

Part B:
Take the equation from part A and replace x with 7.
y=6.75(7)
y=47.25
The total cost is $47.25

Hi! Can someone help me with the phytagorean theorem find the length of the hypotenuse and find the distance between two points. Thank you!

Answers

Photo 1

Answer:

[tex]\\c = \sqrt{61}[/tex]

Step-by-step explanation:

The pythagorean theorem is [tex]a^{2} + b^{2} = c^{2}[/tex]

So if we plug in the other lengths it will be [tex]5^{2} + 6^{2} = c^{2}[/tex]

Now we have to find the value of [tex]c[/tex]

[tex]25 + 36 = c^{2}[/tex]

[tex]\sqrt{61} = \sqrt{c^{2}}[/tex]

[tex]\\c = \sqrt{61}[/tex]

Photo 2

Answer:

[tex]13[/tex]

Step-by-step explanation:

Use the distance formula; [tex]\sqrt{(x_{2} - x_{1})^{2} + {(y_{2} - y_{1})^{2}[/tex]

So if we plug in the other lengths it will be [tex]\sqrt{(8 - 3)^{2} + (7 - (-5))^{2}[/tex]

Then we simplify and get  [tex]13[/tex]

Photo 1=

According Pythogras Theorem,

Hypotenuse^2= Perpendicular^2 + Base^2

H^2 = 6 ^2 + 5 ^2

H ^2= 36 + 25

H ^2= 61


H= 7.81

Helpppppppppppppp please

Answers

Answer:x<2

Step-by-step explanation:

Answer:I don’t know

Step-by-step explanation:

I don’t know

A student was marked absent 6 different times in a 30-day period. What percent of the time was the student tardy? Thank u!

Answers

Answer:

20 %

Step-by-step explanation:

6 out of 30 is 20

if 30=%100 then 6=%20 (The student was marked absent for %20 of the time.)

Mrs. Majors is buying a new blouse from Macy's. It says the blouse costs $15.00 but there is a sign above it that says 25% off. How much is the discount?
Group of answer choices
$7.50
$11.25
$15.25
$3.75
Thank u!

Answers

The answer would be $11.25
The answer is $11.25

The table represents the relationship between the number of employees scheduled per estimated customer at a bookshop. The graph represents the relationship between the number of employees scheduled per estimated customer at a café.

Answers

Answer:

Step-by-step explanation:

Hi! Can someone help me with the find the distance between two points. Thank you!

Answers

Answer
Distance can be found with formula
d = √ (x2 - x1) ^2 + (y2 - y1)^2

d = 11.18 is your distance

Step by step

You have points (10, 6) and (5, -4)

d = √ (5-10)^2 + (-4-6)^2

d = √ (-5)^2 + (-10)^2

d = √ 25 + 100

d = √ 125

d = 11.18 is your distance

Need answer asap please and thank you.

Answers

Answer:

21

Step-by-step explanation:

According to my calculations the answer would be 21

10-5 Permulations

Answer the circle questions

Answers

the answer is 5,
10 minus 5 = 5
The answer is 5 10-5=5

Lydia buys 3 bottles of pineapple juice at the corner store for a total cost of $1.65. If each bottle costs the same amount, how much is each bottle of juice?

Answers

Answer:

Step-by-step explanation:

the answer would be $0.55 cents for each bottle
you divide 1.65 with 3 your total would be 0.55 cents without a remainder :)

Hope this helps solve your question!

$0.55 per bottle of juice

Which of the following uses the commutative property of multiplication to create an expression equivalent to 9 • (x + 4)2?

A
(x + 4)2 • 9


B
9 • (x + 4) ÷ (x + 4)


C
9 • (x2 + 42)


D
9 • (4x)2

Answers

Answer:

¯\_(ツ)_/¯

Step-by-step explanation:

¯\_(ツ)_/¯ its B

The answer is 72X because 4x2 is 8x time 9 Is 73

Find the domain for the following:
(warning- the domain for the UNSIMPLIFIED expression.)
[tex](9x^{2} + 4y^{2} -12xy ) / ( 4y^{2} - 9x^{2} )[/tex]

Answers

Answer: D:xE(∞,∞)

Step-by-step explanation:

set the denominator of the equation equal to 0

0=4y^2-9x^2

solve for x

x=2y/3

x=-2y/3

The domain is all real numbers.

D:xE(∞,∞)

On average, Ian drinks 5/8 of a 6-ounce glass of water in 55 minutes. How much water does he drink, in glasses per hour?

Answers

Answer:

3/4 of a 6-ounce glass will be drinked by her in an hour

Step-by-step explanation:

3/4 of an 6 ounce cup he will drink in an hour

What is " 9 x < 18 =?
(please show work)

Answers

Answer:

x < 18

Step-by-step explanation:

First you do 18 divided by 18, which is 2, so then you write the final answer:

x < 18 (or x is less than 18)

       

Hello how has your week been?

Answers

Answer:good

Step-by-step explanation:

Week almost over+near Christmas=Good week

Greattt how about you

What is " n + 1 < 6 =?
(please show work)

Answers

Answer:

n < 5

Step-by-step explanation:

n + 1 < 6

Subtract 1 from both sides.

n < 5

Answer:

"n + 1 < 6" is an inequality that uses the less than symbol (<) to compare the value of the expression "n + 1" to the value 6. To determine the solution to this inequality, we need to find all values of n that make the inequality true.

We can solve this inequality by using the following steps:

First, we need to isolate the variable "n" on one side of the inequality. To do this, we can subtract 1 from both sides of the inequality, which gives us:

n + 1 - 1 < 6 - 1

n < 5

Next, we need to determine which values of "n" make the inequality true. Since the inequality uses the less than symbol, we need to find all values of "n" that are less than 5. This means that any value of "n" that is less than 5 will make the inequality true. For example, the values 2, 3, and 4 all satisfy the inequality because they are less than 5.

n < 5

2 < 5 (true)

3 < 5 (true)

4 < 5 (true)

Therefore, the solution to the inequality "n + 1 < 6" is all values of "n" that are less than 5. This can be written as:

n < 5

The final answer is: ? = n < 5.

Step-by-step explanation:

What is the mathamatic equation
1/5(15 + 10k)
Solve.

Answers

Answer: 3+2k

Step-by-step explanation:

Answer: 3+2k

step by step

A piece of cheese is shaped like a triangle. It has a height of 2.5 inches and a base that is 3.75 inches long.

If 1 inch = 2.54 centimeters, find the area of the cheese in square centimeters. Round the answer to the nearest square centimeter.

Answers

3.690944881889764 square centimeters. (Not sure what place you wanted it rounded to, so I put the whole number.)
3.7 square centimeters

Surface Area of the Triangular Prism

Answers

Answer:

Step-by-step explanation:

Surface area = (Perimeter of the base × Length of the prism) + (2 × Base Area) = (S1 + S2+ S3)L + bh

Answer:

Step-by-step explanation:

The formula to find the surface area of a triangular prism is :

SA = Areas of triangles + Areas of rectangles

Or

You can use the below formula also.

SA = ( Perimeter of a triangle × length ) + ( 2 × Area of a triangle )

More explanation is attached to the pictures.

Reasoning Determine whether the following relation represents a function. Use pencil and paper. Explain your reasoning.

{(−6 1),(−6 6),(−6 5),(−4 8),(−3 2),(−9 3)}

Does the relation represent a​ function?
yes or no ?

Answers

This does not represent a function because there is three 6’s in the x column.

Need answer asap please and thank you.

Answers

The answer is 29/8.
29/8 is the answer to the question

17/6 in mixed number simplest form

Answers

Answer: 2 5/6

Step-by-step explanation:

Convert improper fraction to a mixed number by diving the numerator of the improper fraction by its denominator.

The quotient should be kept separate.

Hence the quotient of 17 when divided by 6 is 2

The remainder of 17 when divided by 6 is 5

A cookie recipe uses 5 3/4 cups of flour to every 1/4 cups of sugar. What is the constant of proportionality that relates the cups of flour, y, to the cups of sugar, x?

Answers

Answer:

25

Step-by-step explanation: I don’t feel like explaining dog

Answer:

Step-by-step explanation:

(2,5) and (4,7) find the slope

Answers

Answer:

1

Step-by-step explanation:

to find the slope you want to put the values into this equation:

(y value 1 - y value 2)/(x value 1 - x value 2)

so we get

(5-7)/(2-4)

= -2/-2

=1

The answer to your question is the
slope is 1

Simplify by combining like terms.

14 - 3x + 20 - 5x

Answers

Answer:34-8x

Step-by-step explanation:

14-3x+20-5x

-5x+-3x=-8x

20+14=34


14-3x+20-5x
-14 -14
3x+6-5x
-2x+ 6
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