What are the rate of growth or decay, r, and the initial amount, A?

1 answer:

8 0

Exponential word problems almost always work off the growth/decay formula, A = Pert, where "A" is the ending amount of whatever you're dealing with (money, bacteria growing<span> in a petri dish, radioactive decay of an element highlighting your X-ray), "P" is the beginning amount of that same "whatever", "r" is the growth</span>

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3 years ago

BRAINLIEST ANSWER!!

Maksim231197 [3]

Answer:

1. 30(8.75) + 11t = 400

2. 12.5 hours

Step-by-step explanation:

1. What is given is you work for 30 hours per week at a gas station for $8.75 an hour. You also work as a landscaper for $11 an hour. You want to a make a total of $400 per week.

30 hours and $8.75 an hour would be equivalent to 30(8.75)

We don’t know how many hours you work as a landscaper but you earn $11 an hour, which is equivalent to 11t

Finally, you want to earn a total of $400 a week, which means the sum equals 400

30(8.75) + 11t = 400

2. 30(8.75) = 262.5

400 - 262.5 = 137.5

137.5 / 11 = 12.5

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4 years ago

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Alan, david and shari are running for president of their high school. There were a total of 1,000 votes cast for president. Davi

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