Mathematics High School

A college student has $240 to use for laundry money. Each time he does laundry, he spends $7.50. Which equation represents the amount of money, M, he has after he has done laundry “x” times?
A) M= 7.50x - 240
B) M= 240 - 7.50x
C) M= 7.50 - 240x
D) M= 240x - 7.50

Answers

Answer 1

Answer:

B

Step-by-step explanation:

x = the number of times he does laundry.

Let's say he does the laundry 5 times then x = 5.

Each time costs $7,50.

If you want to know how much money he has spent after 5 times, you have to calculate 5 times $7,50. 7,5 times 5 = 37.5.

M stands for how much money he still has left from the 240 dollars.

If you apply the formula it would be 'M = 240 - 7.50x (7.50 times 5) = 240 - 37.5 = 202.5'

Therefore, the correct answer is B (M = 240 - 7.50x).

Related Questions

what is the slope pls help

Answers

The slope should be 3x

Answer: 19,7

Step-by-step explanation:

what percentage is $4 of $16?

Answers

25% to get that you divide the part by the whole so 16/4 and then multiply by 100 to get the percentage

i need help with that please .

Answers

Answer: (3, 3)

Steps:
y = 4x - 9
Substitute x for y since y=x
x = 4x - 9
x - 4x = 9
-3x = -9
x = -9/-3
x = 3

Y = x
Y = 3

Check:
y = x
3 = 3 ✅

y = 4x - 9
3 = 4(3) - 9
3 = 12 - 9
3 = 3 ✅

Answer:

3,3

Step-by-step explanation:

Hello Kitty has created a new system of conversion for the residents of Kitty Nation. The standard for measurement of length in Kitty Nation is that 8 lenthii = 30 inches and 4 gianthii = 478.8 lenthii. If a design to be sent to Kitty Nation is 294.3 feet long, how many gianthii long will it be? (Include units)

Answers

Answer:

yvcwඨ්‍ය්වුය්tubcccccccccccccuuuuuu,,,v ttttttttrhhhhhhhhh

-44 +40−44+40minus, 44, plus, 40

Answers

Answer:

-12

Step-by-step explanation:

lol, hope this isn't a troll

Answer:

-12

Just combine the numbers

help please !! will give brainliest:))

Answers

Answer:

226.19

Step-by-step explanation:

Brainliest ,easy question

Answers

Answer:

Scale factor is 2/5 or 0.4

Step-by-step explanation:

Divide radius of smaller circle (2) by radius of large circle (5)

Answer:

Scale factor is 2/5

Step-by-step explanation:

PLEASE HELP NO LINKS OR FILES
1. When the outcome of one even has NO effect on the outcome of the other is called... A. likely events
B. dependent events
C. independent events

2.Lucy picks a marble at random. Without putting the first marble back, Lucy picks another marble at random. This is called...
A. independent probability
B. random ratios
C. dependent probability
D. natural occurrence

3. A bag contains 9 green marbles and 12 pink marbles. One marble is chosen at random and returned to the bag. Then, a second marble is chosen at random.

What is the probability that both marbles chosen will be green?
A. 6/9
B. 9/49
C. 3/4
D. 81/122

Answers

Answer:

1c

2c

3b

Step-by-step explanation:

Directions: Find the value of each variable.
HELPPPP

Answers

Answer:

wow I'll need time to figure this out

Miguel sells insurance. He earns a 6% commission on each sale he makes. Miguel has a goal of earning $600 in commissions. Miguel need to sell $ Worth of insurance to meet his goals

Answers

Answer: $12,000

Step-by-step explanation:

Miguel makes 6% on every sale he makes and wants to make $600 in commissions.

The amount he needs to sell is therefore the amount that has $600 as 5% of it.

Assume the amount of insurance needed is x.

x * 5% = 600

x = 600 / 5%

x = $12,000

Choose the correct symbol

Answers

Answer:

[tex]2,000lb < 1 t[/tex]

Step-by-step explanation:

1 Ton = 2,240 lb

Select the correct answer.
Consider this equation of a parabola.
- 2x2 - 4x + 2y + 8 = 0
What is the equation expressed in vertex form?
O A.
B.
л
y = (x – 4)2 – 20
y = (x + 1)2 – 5
C. y = (1 – 4)2 + 4
OD. y = (x + 1)2 - 1

Answers

Answer:

B

Step-by-step explanation:

a guidebook says this tower is 50m tall.Is that correct? given deegrees are 27° and 46°
​

Answers

9514 1404 393

Answer:

   yes

Step-by-step explanation:

The tower is about 50.1 meters tall. The guidebook is correct.

__

The distance from the base of the tower to the angle vertex is ...

  d1 = h/tan(46°)

  d2 = d1 +50 = h/tan(27°)

Then the height of the tower is ...

  h/tan(46°) +50 = h/tan(27°)

  50 = h(cot(27°) - cot(46°))

  h = 50/(cot(27°) -cot(46°)) ≈ 50/(1.96261 -0.96569) ≈ 50/0.99692

  h ≈ 50.1544 . . . meters

The tower is more than 50 meters high.

Find the value of x.

Can someone help please?

Answers

A. is the correct answer

Which expression shows how 5⋅37 can be rewritten using the distributive property?




5x30+5x7

5x30+5x37

15x30+15x37

5x30+7

Answers

Answer:

5 x 30 + 5 x 7 is the correct option.

Answer:

5*30+5*7

Step-by-step explanation:

the other answers I already did I just need the division answers​

Answers

Answer:

6÷41 equals 0.14634146341

6÷21 equals 0.28571428571

6÷43 equals 0.13953488372

6÷37 equals 0.16216216216

6÷20 equals 0.3

Step-by-step explanation:

Hope this helps

A triangle has side lengths of
(x-8) (4x2 – 3) and (4x2 + 4).
If the perimeter is 650 units, what is the value of x?​

Answers

Given:

The three sides of a triangle are:

[tex](x-8),(4x^2-3),(4x^2+4)[/tex]

The perimeter of the triangle 650 units.

To find:

The value of x.

Solution:

Perimeter of a triangle is the sum of all three sides of the triangle. So,

[tex]Perimeter=(x-8)+(4x^2-3)+(4x^2+4)[/tex]

[tex]Perimeter=8x^2+x-7[/tex]

The perimeter of the triangle 650 units.

[tex]8x^2+x-7=650[/tex]

[tex]8x^2+x-7-650=0[/tex]

[tex]8x^2+x-657=0[/tex]

Splitting the middle term, we get

[tex]8x^2+73x-72x-657=0[/tex]

[tex]x(8x+73)-9(8x+73)=0[/tex]

[tex](x-9)(8x+73)=0[/tex]

Using zero product property, we get

[tex](x-9)=0\text{ and }(8x+73)=0[/tex]

[tex]x=9\text{ and }x=-\dfrac{73}{8}[/tex]

For negative value of x, the side [tex](x-8)[/tex] will be negative, which is not possible because the side of a triangle cannot be negative.

Therefore, the only value of x is 9.

11. 12. and 13. Please no links

Answers

there are no questions???? Add a question and I answer

im highly confused .. please help .. i will mark brainliest!

Answers

Answer:

22/7*1.5 square

=7.1 meter square

Answer:

Don’t Be Worried!

the formula Is A=πr2

The answer will be last option

Step-by-step explanation:

I hope you are staying safe!

Use the key features of the polynomial f(x) = −2x3 + 5x2 − 2x − 3 to describe its end behavior.
A. The left side continues down, and the right side continues up.
B. The left side continues down, and the right side continues down.
C. The left side continues up, and right side continues up.
D. The left side continues up, and the right side continues down.

Answers

Answer:

b

Step-by-step explanation:

What is the volume of a hemisphere with a diameter of 5.5 cm, rounded to the
nearest tenth of a cubic centimeter?​

Answers

Answer:

not very sure but  V = 2094.3951 m3

Step-by-step explanation:

The cost to mail a package varies directly to the weight of the package. If a 14- ounce package costs $4.48 to mail, find the weight of a package that cost $8 to mail. ​

Answers

Answer:

Step-by-step explanation:

Ok so first, we must figure out what 1 once costs. This can be done by divideing 4.48(cost) by 14(weight).

You should get 0.32.

Now just multiply by 8 and you should get your answer. This answer is 2.56.

Answer:

2.56

Another way this can be done is dividing 8(second weight) by 14(first weight) which will get you the difference. This is 0.5714 blah blah blah goes on for a long time. Now, take this number and multiply it by the 4.48(first cost). This should get you 2.56.

Answer:

2.56

Ti⊂k∫∈s ω∅∅p

The distance between two towns is 120 kilometers. There are approximately 8 kilometers in 5 miles.
Which measurement is closest to the number of miles between these two towns?
O 75 mi
O 3 mi
O 192 mi
117 mi

Answers

Answer= 75 miles

Explanation: 120 divided by 8= 15

15 times 5= 75

can someone please help me​

Answers

Answer: -8

Step-by-step explanation:

Put -8 in place of all of the x variables when I solved the top was equal to 40 and the denominator was equal to -5 and 40/-5 is equal to -8

Answer:

-8

Step-by-step explanation:

(-8) ^2+3(-8)

= ------------------------

4(-8)+27

64-24

=-----------------

-32+27

40

=------------

-5

= -8

A cat jumps off a three foot high kitchen counter at an initial upward velocity of 2 feet per second. The function h(t) = -16ť + vt + s models the cat's height (in feet) above the kitchen floor, where v is the initial upward velocity of the cat in feet per second. a. Write an equation to find the time when h(t) = 0. _16+ + tt =0 0 b. Solve the equation to find the two values for t. t= or t = C. Explain the two values for t in the context of the situation.​

Answers

http://www.west-windsor-plainsboro.k12.nj.us/common/pages/displayfile.aspx?itemid=23038940

Choose the smallest fraction
1/13
1/11
1/12

Answers

Answer:

1/13 is the smallest fraction

Step-by-step explanation:

1/13 = 0.0769

1/11 = 0.0909

1/12 = 0.0833

1/13 is the smallest fraction

The correct answer is 1/13

What is the answer please

Answers

27 or 3^3
Since they have the same base (3^11 and 3^4), just 11-4 and get 7 => 3^7
Again, since the same base (3^3 and 3) just sum the exponents => 3+1=4 => 3^4
And now 3^7 : 3^4 => 7-4 is 3 => 3^3 or 27.

please help


will mark brainlist

Answers

Answer:

(-2, 4)

Step-by-step explanation:

Reflection over the x-axis would mean the point would flip upwards, this would affect the y coordinate.

Find the circumference of the pizza. Round your answer to the nearest tenth.

diameter 12

in.

Answers

Answer:

Rounded=37.7

Step-by-step explanation:

C=2πr=2·π·6≈37.69911

PLLZZZZZZZZZZZZZZZZZZZZZZZZZ HELPPP PLZZZZZZZZZZZZZZZZZZZZZ

Answers

Answer: your answer is C.  there is no common factor between 6 and 15.

Answer:

the answer is D 9w=21

how

21/9 = 2.3333333333

Step-by-step explanation:

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