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rjkz [21]
3 years ago
15

Jan uses 22.5 gallons of water in the shower. This amount is 7.5 gallons less than what she uses when washing her clothes. Write

and solve an equation to find out how many gallons she uses to wash her clothes.
Mathematics
1 answer:
arsen [322]3 years ago
3 0

22.5 (shower) = X (variable used in place of the amount of water she uses to wash clothes) - 7.5 (the amount she used in the shower is 7.5 gallons less than she uses for washing clothes)

22.5 = X - 7.5 《 This is the equation.

Solve is by adding 7.5 to both sides to cancel out the negative 7.5 and you get (X = 30).

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Ivan is painting 3 walls in his living room. Each wall measures 9 3/4 feet tall by 14 1/4 feet wide. Ivan needs to estimate the
Alenkinab [10]

Answer:

The estimated area is 416\frac{13}{16}\ ft^{2}

Step-by-step explanation:

we know that

To estimate the area that Ivan will paint , calculate the area of one wall and then multiply by 3

step 1

Convert the dimensions to an improper fractions

9\frac{3}{4}\ ft=\frac{9*4+3}{4}=\frac{39}{4}\ ft

14\frac{1}{4}\ ft=\frac{14*4+1}{4}=\frac{57}{4}\ ft

step 2

Find the area of one wall

(\frac{39}{4})*(\frac{57}{4})=\frac{2,223}{16}\ ft^{2}

step 3

Multiply the area of one wall by 3

(3)*\frac{2,223}{16}=\frac{6,669}{16}\ ft^{2}

step 4

Convert to mixed number

\frac{6,669}{16}=\frac{6,656}{16}+\frac{13}{16}=416\frac{13}{16}\ ft^{2}

4 0
3 years ago
Carmen wants to join a gym. Gym A costs $26.76 plus an additional $4 for each visit. Gym B has no initial fee but costs $12.92 f
joja [24]

Answer:

After 3 visits both plans will cost the same.

Step-by-step explanation:

Gym A costs $26.76 plus an additional $4 for each visit.

Gym B has no initial fee but costs $12.92 for each visist.

The cost for gym A can be written as

C= $26.76 + 4(x)  where x is the number of visits to the gym A

The cost for gym B can be written as

C= $12.92 (x)  where x is the number of visits to the gym B

Both costs will be equal

12.92x= 26.76 +4x

12.92x-4x= 26.76

8.92x= 26.76

x= 26.76/8.92

x= 3

after 3 visits both plans will cost the same.

Check

12.92x= 26.76 +4x

12.92*3= 26.76 +12

38.76= 38.76

3 0
3 years ago
Alang has a loyalty card good for a discount at his local pharmacy. The item he wants to buy is priced at $13, before discount a
kap26 [50]

The percentage discount will be 9%.

<h3>How to calculate the value?</h3>

From the information given, the item he wants to buy is priced at $13, before discount and tax and after the discount, and before tax, the price is $11.83.

The percentage discount will be:

= (13 - 11.83)/13 × 100

= 1.17/13 × 100

= 9%

Therefore, the percentage discount will be 9%.

Learn more about percentages on:

brainly.com/question/24304697

#SPJ1

5 0
1 year ago
What is the value of x?
alexgriva [62]

Answer:

The value of x is 26 degrees

Step-by-step explanation:

1: 1/4 of a circle (360 degrees) is 90 degrees.

2 90 - 64 = 26

3 0
3 years ago
FOR 90 POINTS!!! PLEASE HELP!!! I'M STUCK ON THIS!
spin [16.1K]
(a) y = -7/5x + 17.8
(b) it decreased by 7/5 per day.

Hope this helps!!!   :)
7 0
3 years ago
Read 2 more answers
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