Mathematics Middle School

Write an equation for each situation.

8. Art buys 14 packages of batteries. After using a $ 20 coupon, the batteries cost $ 80. What was the original price, x, in dollars, of each package of batteries?

9. Grace worked for 14 hours tutoring students. She uses $20 dollars to pay for gas on the way home. If she has $80 left after paying for the gas, how much money, x, in dollars, was Grace paid per hour?

10. Karl bought 14 calculators at a store and paid $80. Each calculator was on sale for $20 off. What was the original price, x, in dollars, of each calculator?

11. Shane originally has $20. After working as a waiter in a restaurant for $14 dollars an hour, he now has $80. How many hours, x , did Shane work at the restaurant?

Answers

Answer 1

Answer:

8. The original price for one pack of batteries was $7.15

Step-by-step explanation:

Answer 2
8 & 9 have the same answer:
x = 20 + 80 / 14

10:
x = 14 • 20 + 80 / 14

11:
x = 80 - 20 / 14

Related Questions

a recipe callls for 2/3 a cup of milk thomas halves the recipe how much milk does he need

Answers

Answer:

1/3 cup of mill

Step-by-step explanation:

2/3 2/2 = 1

Answer:

Thomas needs 0.3 cups of milk.

Step-by-step explanation:

2/3 is 0.67 as a decimal.

0.67 ÷ 2 = 0.335

Thomas needs 0.335 cups of milk.

Hope this helps! :)

write the equation for this line

Answers

Answer:

y = 4x + 3

Step-by-step explanation:

heeeeeeeeeeeeeeeeeeeelllllllllllllllllllllllllllllllllpppppppppppppppppppppppppppppppppp

Answers

Answer: output = -1n + 7 or  -n + 7

n can represent any number.

Step-by-step explanation:  using the slope-intercept form y = mx + b

y is the output. x is any input.  m is the slope.  b is the constant.

Calculate the slope:  rise ÷ run  

You see all the inputs in the chart are going up by 1. This is the run +1

You see all the outputs going down by 1.   This is the rise:  -1

So the slope, m,  is rise / run . -1/1 =  -1

To find the constant, use the slope with any pair of inputs and outputs from the chart in place of y and x in the slope-intercept equation.

y = mx + b  becomes   6 = -1(1) + b . Solve for b

6 = -1 + b

6 +1 = -1 +1 + b

7 = b

Now set up the equation that answers the question using the calculated values of m and b.

y = -1(x) + 7 . We can answer the question with this equation rewritten a bit:

Output = -1n + 7

or -n + 7  as 1 is usually implied.

-n+7 this is the answer sis

I NEED SOME HELP!!!!!

Answers

It’s (-5,1)

You start at (-3,1) then it tells you to go two left, which is the negative way, and it ends up being (-5,1).

PLEASEEEE HELP!!!! ahhhhhhh

Answers

(1,9)

Have a nice day!!!

Answer:

1, 9

Step-by-step explanation:

Answer for 12 points please?

Answers

Answer:

4,8

Step-by-step explanation:

4x is 4 on the x line, + 4 is 8 therefore Y = 8.

A bakery sells 4 muffins for $8.60. At that rate, how much would it cost to buy 5 muffins?

Answers

Answer:

5 muffins would be $10.75

Step-by-step explanation:

I you want me to explain just ask.

$10.75
you have to divide 8.60 by 4 to find out how much each muffin costs
the you get 2.15 and multiply that by 5 to get your answer.

I need help!!!!!
Help Needed!!!!!!!!!!!

Answers

Is there any more information than just that picture? Please tell me

The table of values below represents a linear function. Which of these points could also be an ordered pair in the table and why?
A. (18,27), because the rate of change of the function is 3/4
B. (18,27), because the rate of change of the function is 4/3
C. (27,18), because the rate of change of the function is 3/4
D. (27,18), because the rate of change of the function is 4/3

Answers

B is the right answer

Answer:

B

Step-by-step explanation:

Hope I helped

Estimate the quotient by rounding the expression to relate to a one-digit fact. Explain your thinking in the space below. 432 ÷ 73 ≈ ___ *

Answers

Answer:

5.9..... there are a bunch of numbers after that but you would round it to 6.0

Step-by-step explanation:

It would be 5.9,, I looked ok my calculator

help me plss............................................

Answers

Answer:

im not sure if this is correc but i think it may be  -15 like i said not 100% sure im like 38% sure sorry

Step-by-step explanation:

Answer:

-15

Step-by-step explanation:

Jason has 4 tiles. Each tile has a number printed on it. The numbers are 2, 3, 6, and 8. A decimal number is formed using the tiles and the clues. Find the number. Clues: 1. The digit in the tens place is the greatest number. 2. The digit in the tenths place is less than the digit in the hundredths place. 3. The digit in the ones place is greater than the digit in the hundredths place.

Answers

Answer:

86.23 should be your answer

Answer:

86.23 Hope I helped

Step-by-step explanation:

UwU

Have a great day

Let f(x)=7x+5 and g(x)=x-1. If h(x)=f(g(x)), then what is the inverse of h(x)

Answers

i dont really know how to explain it so i just solved it (the answer is boxed) but i hope this helps !
ANSWER: x= 6/7

EXPLANATION:

Subtract 5 from both sides (7x+5-5=-1-5)
Simplify= (7x=-6)
Divide both sides by 7 (7x divide by 7 -6 disguised by 7)
Simplify (x= -6/7) x equals negative six over seven

Another Question help these are due soon!!!!!!

Answers

1. The slope is 3/1 (3)

2. 1/3

3. Decimal of 3/1 is 3.0

4. Decimal of 1/3 is .33

5. C

~theLocoCoco

I need answer ASAP.

Abram was in a contest shooting baskets. He made 20% of his shots. He took a total of 240 shots in the competition. How many baskets did he miss?

Answers

Answer:

192 baskets

Step-by-step explanation:

What is the radius and diameter of the following circle? 13cm

Answers

diameter-13cm
radius -6.5 cm

The equation given was: (x) + (x + 3) + (x - 2) + 3(x + 3) - 1 = 87.

Using this equation, write the equation with fewer terms.

Answers

Answer:

x = 13

Step-by-step explanation:

(x) + (x + 3) + (x - 2) + 3(x + 3) - 1 = 87

x + x + 3 + x - 2 + 3x + 9 - 1 = 87

6x + 9 = 87

6x = 87 - 9

6x = 78

x = 78/6

x = 13

X=13 hope that help you out buddy

The current balance of Amber’s bank account was $8. She withdrew
$14. Find the new balance in her account.

Answers

Answer:

$-6

Step-by-step explanation:

$(8-14)

= $-6

Hope this helped!

The answer is going to be -14

5/ 2 x ≤ -14

A. -10.3
B. -6
C. -5.6
D. -5
Which of these does not make the inequality true?

Answers

Answer:

-5

Step-by-step explanation:

5/2(-5)≤-14 false

-12.5≤ -14 so false

The others are true

Answer -5. Explanation bc I got it right

............./..........................///

Answers

Answer:

C

Step-by-step explanation:

Answer:

D is the answer.

Step-by-step explanation:

We can see on the graph that the equation has a slope of 3. This is greater than the slope of 2. It also starts at a y-intercept of 4, which is higher than -5.

#teamtrees #WAP (Water And Plant)

To celebrate getting a new car, Johnny went out to eat with 3 friends. Their meal, including tax, was $75. If they left a 15% tip, what is the cost of their total bill with the tip included?

Answers

Answer:

$86.25

Step-by-step explanation:

15% as a fraction and multiply that by 75 and then add that to 75.

i think that the answer is $86.25

Which equations are true? Select all that apply. A. 32 . 6 × 10 2 = 3 , 260 B. 32 . 6 × 0 . 01 = 0 . 326 C. 3 . 26 × 10 1 = 0 . 326 D. 326 × 0 . 1 = 3 . 26

Answers

Answer:

i believe the correct answer is C.

Step-by-step explanation:

Answer:

A & B

Step-by-step explanation:

:PHOTO: I NEED HELP ASAP

Answers

6:1.5

12:3

18:4.5

24:6

96.8:4,820

48.4:2,420

24.2:1,210

12.1:605

I don’t understand how to do this question please help and explain thank you!

Answers

Here use this information and fill the table....:)

Answer:

<1=<3=<5=<7

Step-by-step explanation:

Mark me as brainliest

How many millimeters are in 3.2 centimeters?
.32
320
32 mm
3.2
22.
If there are 10 millimeters for every 1 centimeter, what fraction of a centimeter is a millimeter?
2.54
1/10
10
2.45

Answers

1. 32 mm
2. 1/10
This is just from what I know I have no clue if it’s right

I'LL GIVE YOU 20 POINTS AND BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

It is the 5th Blue one:) We know this because the y-intercept is -2.

Answer:

I can see how this is confusing, because of -2, but the slope is decreasing, so the question wouldn't say:

[tex]-3/5x - -2[/tex]

This happens to turn the -2 into a regular 2 with an addition (+) sign.

and since the graph has an input of 5 but an output of -3, the equation would be:

y = -3/5x + 2

which one is it [photo is attached]

Answers

There is no photo
You’ll probably have to make a new post

help please !! thank u

Answers

Answer:

I think this is pythagorean theorem but I'm not sure what I got was 15 for the answer

i’m pretty sure the answer is 15!

Choose the student who wrote and solved the equation correctly.

The cost of 4 bananas is $2.36. What is the cost of each banana?


Mario's Work. StartFraction b Over 4 EndFraction = 2.36. A number line going from 9.41 to 9.49. A point is at 9.44.
Juan's Work. 4 b = 2.36. A number line going from 0.51 to 0.59. A point is at 0.59.
Daviana's Work. B minus 4 = 2.36. A number line going from 6.31 to 6.39. A point is at 6.36.

Answers

Answer:

B i think

Step-by-step explanation:

Juans work is correct because the equation to find cost of each banana is 4b=$2.36

What is Number system?

A number system is defined as a system of writing to express numbers.

Given that the cost of 4 bananas is $2.36

We have to find the cost of each banana.

To find this we have to divide the cost by number of bananas

Divide two point three six by four

Banana is denoted by b

4b=$2.36 is the required equation

Cost of each banana =$2.36/4

=$0.59

Hence, Juans work is correct because the equation to find cost of each banana is 4b=$2.36

To learn more on Number system click:

https://brainly.com/question/22046046

#SPJ2

WORd problem I hate word problems please help in image bellow

Answers

it depends on the type of animal they are caring for and how many. lizards and reptiles need more heat and won’t be healthy unless they receive that heat. cats and dogs shed fur and grow a winter coat so they were made for the fluctuation of the weather
Yes it could because some animals need the heat, so if they have those types of animals like for example lizard, hedgehog ( I know cuz I have one ) or maybe a tarantula then yes hope this helped!
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