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Angelina_Jolie [31]
3 years ago
11

13. If y = -6 when x = 9, find y when x = -3.

Mathematics
1 answer:
GalinKa [24]3 years ago
5 0

Answer: y =ax

Step-by-step explanation:

-6=a×9

=>a =\frac{-2}{3}

y=\frac{-2}{3}×-3

=>y = 6 when x=-3

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Answer:

A can paint in 3days and B in 6 days

Step-by-step explanation:

From the question we were told

Person A can paint the neighbors house 2 times as fast as Person B

Let A only paint the neighbors house in X days

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If we express the given information from the question in terms of fraction we have,

1/X + 1/2X = 1/2

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if we cross multiply we have

6= 2X

X= 6/2

X= 3

Then A can paint the house in 3 days and B in 2(3)= 6days.

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3 years ago
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4. Kay and Allen sell cell phones. Last month Kay sold 17 more cell phones than Allen. Together they both sold 117 cell phones.
forsale [732]

Answer:

Allen sold 50 cell phones while Kay sold 67 cell phones.

Step-by-step explanation:

Let the number of cell phones sold by Allen be x. This will imply that the number of cell phones sold by Kay is x + 17.

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Therefore, Allen sold 50 cell phones while Kay sold 67 cell phones.

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Answer:

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