C is the answer by using distributive property
Answer:
A. 12 is greater than or equal to x
B. you can invite 12 guests
Step-by-step explanation:
The answer to that is no solution.
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Calculate Jean's rate
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Jean takes 8 hours to fill the pool.
So in 1 hour, she can fill 1/8 of the pool
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Calculate Mark's rate
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Mark takes 12 hours to fill the pool.
So in 1 hour, he can fill 1/12 of the pool.
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Calculate their rate if they work together
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Jean = 1/8
Mark = 1/12
1/8 + 1/12 = 3/24 + 2/24 = 5/24
They will fill 5/24 of the pool in 1 hour
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Find number of hours needed to fill up the pool
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I hour = 5/24 of the pool
1 ÷ 5/24 hour = 5/24 ÷ 5/24 of the pool
24/5 hour = Whole pool
Whole pool = 24/5 hours
Whole pool = 4 4/5 hours or 4.8 hours
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Ans: The supervisor is not correct, it will take only 4.8 hours if both of them work together.
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if she bought 4 for 1$ and sells 2 for 1$ that means she sells 4 for 2$ so every 4 she buys she makes 1$ so in order to make 5$ their must be 5 x 4bars so 20bars must be bought
