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Gekata [30.6K]
3 years ago
8

If a(x) = -9 - 2x, what is an equation for a-'(x)?

Mathematics
1 answer:
saul85 [17]3 years ago
8 0

Answer:

The answer should be A..

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Answer:

They will have the same amount of money in their piggy banks when they each reach $6. (4 days for Joseph, 3 for Kelsey.)

Step-by-step explanation:

Joseph has $3.00 and will add $0.75 cents to it each day. So for the first day he will have $3.75. Then, $4.50. Then, $5.25. Then on the fourth day, he will have $6.

Kelsey has $5.25 and will add $0.25 each day. For the first day, she will have $5.50 in her piggy bank. Then, $5.75. Then $6.

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