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SVETLANKA909090 [29]
3 years ago
9

Peter babysits his sister on Monday and Friday. He babysits for his neighbor 40% of the days Monday through Friday. He babysits

for his sister and his neighbor on different days. On the weekend, Peter babysits 50% of the days. How many days does Peter babysit each week?

Mathematics
2 answers:
rjkz [21]3 years ago
8 0

Answer:

3 days of the week.

Step-by-step explanation:

Well they removed my answer even though it was correct.

Monday - Friday = 5 days. If you divided 40 by 100 you get .40 which is forty percent in decimal form. 5 * .40 = 2 days.

Weekend is 2 days. If you divide 50 by 100 you .50 which is fifty percent in decimal form. 2 * .50 = 1 day.

Thus he babysat on 3 days of the week.

ExtremeBDS [4]3 years ago
4 0
It’s was right 3 days
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Answer:

The height of the tree in 2020 was of 19.63 feet.

Step-by-step explanation:

Exponential equation for growth:

The exponential equation for the growth of an amount has the following format:

H(t) = H(0)(1+r)^t

In which H(t) is the amount after t years, H(0) is the initial amount and r is the growth rate, as a decimal.

A 4 foot tree was planted in 2012 outside a high school.

This means that H(0) = 4

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This means that r = 0.22

Find out what the height of the tree was in 2020.

2020 is 2020 - 2012 = 8 years after 2012, so this is H(8).

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H(4) = 4(1.22)^8 = 19.63

The height of the tree in 2020 was of 19.63 feet.

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