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2 years ago

5

Joe works a part-time job at grocery store which pays $45 a week. He has already saved $75 towards the purchase of a new $480 iP

hone. How many weeks must he work in order to have enough money to buy the iPhone?

1 answer:

ahrayia [7]2 years ago

6 0

He makes $45 per week.

He has $75.

Price of the phone minus what he has = $405.

Let w = the number of weeks he must work to buy the phone.

w = $405/$45

w = 9

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2 years ago

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olya-2409 [2.1K]

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B

Step-by-step explanation:

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2 years ago

Read 2 more answers

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Answer:

4 trays should he prepared, if the owner wants a service level of at least 95%.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 5

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Formula:

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Calculation the value from standard normal z table, we have,

$\displaystyle\frac{x - 5}{1} = -1.645\\x = 3.355 \approx 4$

Hence, 4 trays should he prepared, if the owner wants a service level of at least 95%.

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3 years ago

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