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tresset_1 [31]
3 years ago
10

The Mitchells are renting a boat for the day. It costs $100, plus $20 for each hour. They have to pay for a whole hour even if t

hey are not out there for a whole hour. For example if they boat for 3 and a half hours, they have to pay for 4 hours. They don't want to spend more than $250 for the day. How many hours can they boat? Write an inequality and solve. A)100 + 20x ? 250. They can boat for 7 hours. B)100 + 20x ? 250. They can boat for 8 hours. C)100 + 20x ? 250. They can boat for 8 hours. D)100 + 20x ? 250. They can boat for 7 hours.
Mathematics
1 answer:
lys-0071 [83]3 years ago
7 0

Your answer would be C.

Step-by-step explanation:

250 dollars. 250-100= 150. 150/20 equls 7.5. 7.5 will round to 8. It iwll be 8 hours hey will have to pay for.

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6 0
3 years ago
Keisha just deposited a total of 900 into savings accounts at two different banks. the 550 she deposited at bank A will earn 2.2
mars1129 [50]

Answer:

F.

Step-by-step explanation:

Find how much interest she will earn from bank A:

100% = 550

1% = 550 ÷ 100 = 5.5

2.25% = 12.375

Find how much interest she will earn from bank B:

900 - 550 = 350

100% = 350

1% = 350 ÷ 100 = 3.5

3% = 3.5 x 3 = 10.5

Find out how much money she will earn from both banks of their interest:

10.5 + 12.375 = 22.875

Find out how much money she will earn from both banks of their interest in 2 years:

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Find out how much she earns from both banks including interest:

900 + 45.75 = 945.75

(Final answer)

5 0
2 years ago
g A coffee-dispensing machine is supposed to deliver eight ounces of liquid into each paper cup, but a consumer believes that th
kap26 [50]

Answer: Reject the eight- ounces claim.

Step-by-step explanation:

For left tailed test , On a normal curve the rejection area lies on the left side of the critical value.

It means that if the observed z-value is less than the critical value then it will fall into the rejection region other wise not.

As per given ,

Objective : A coffee-dispensing machine is supposed to deliver eight ounces of liquid or less.

Then ,

H_0: \mu=8\\\\H_a: \mu , since alternative hypothesis is left-tailed thus the test is an left-tailed test.

the critical value for z for a one-tailed test with the tail in the left end is -1.645 and the obtained value is -1.87.

Clearly , -1.87 < -1.645

⇒ -1.87 falls under rejection region.

⇒  Decision : Reject null hypothesis.

i.e. we reject the eight- ounces claim.

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3 years ago
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A

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3 years ago
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Answer:
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