Anita can paint the shed in 5 h. If Kris helps her, they can paint the shed in 3 h. How long will it take Kris to paint the shed alone?

Answers

Answer 1

Answer: Anita can paint the shed in 5 hours. If Kris helps her, they can paint the shed in 3 hours. How long would it take Kris to paint the shed alone?
----
Anita rate = 1/5 job/hr
Together rate = 1/3 job/hr
Kris rate = 1/x job/hr
Equation:
rate + rate = together rate

1/x + 1/5 = 1/3
----
Multiply thru by 15x to get:
15 + 3x = 5x
2x = 15
x = 7.5 hrs (time for Kris to do the job alone)

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What is the missing number in (18x2)x5=18x(2x____)

Answers

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Answers

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Jacqueline earned a commission of $200 for one week at work. Her commission rate is 12% of the merchandise she sells. How much merchandise, m, did she sell that week? Identify the equation that solves the problem using the idea:

Answers

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Step-by-step explanation

Answer:

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The school store sells 4 pencils for 50 cents. At that rate, what would be the cost of 10 pencils?

Answers

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5x-2y=6
thx to the ppl who help

Answers

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ellen had 25 hair clips,7 of them were blue and the rest are purple.what percent of hair clips were purple

Answers

Ellen had 25 hair clips. 7 of them were blue and the rest were purple. What percent of hair clips were purple?

To find out how many hair clips are purple, we can subtract 7 from 25 to see how many hair clips are purple. 25 - 7 = 18 so we now know that 18 hair clips are purple.

The fraction $(18)/(25)$ represents the number of purple hair clips Ellen has out of all the hair clips together.

To find what percent of the hair clips are purple, we can turn this into a fraction.

18 ÷ 25 = 0.72

0.72 × 100 = 72%

Therefore, 72% of Ellen's hair clips were purple.

Answer=72%

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18 x
____=____
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cross multiply
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divide both sides by 25
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