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Hitman42 [59]
3 years ago
5

If a seamstress is paid $7.85 per hour and works 18.75 hours in one week? Round your answer to the nearest cent.

Mathematics
2 answers:
trapecia [35]3 years ago
7 0
The answer would be $147.19
Usimov [2.4K]3 years ago
5 0

Answer:

$ 147.19

Step-by-step explanation:

To find out how much they are paid per week,  we multiply the hours worked by the  dollars per hour

wages = hours worked * dollars/hour

            = 18.75 hours * $7.85/ hour

             =$147.1875

 We need to round to the nearest cent.    We round the 8 so we look at the 7.  7>5 so we round up.

$ 147.19

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A hot water tap filled a bath in 7 1/2 minutes,while a cold water tap fills it in 5 minutes,how long will it take to fill the ba
Kisachek [45]

Answer:

3 minutes

Step-by-step explanation:

Let's say that the bathtub is 15L

It would take 7.5 mins to fill 15L

15L/7.5 = 2L per minute

The other tap would take 5 minutes to fill 15L

15L/5 = 3L per minute

3L per minute + 2L per minute = 5L per minute

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4 0
3 years ago
Please help me with the first question
tatuchka [14]
I assume the carpet has the shape of a rectangle.

Let L = length
Let W = width

The area is 192 ft^2.
LW = 192
The perimeter is 56 ft.
2L + 2W = 56

We have a system of 2 equation in 2 unknowns.
LW = 1922L + 2W = 56
Divide the second equation by 2:
L + W = 28
Subtract W from both sides.

L = 28 - W

Substitute 28 - W for L in the first equation.

LW = 192
(28 - W)W = 192
28W - W^2 = 192

W^2 - 28W + 192 = 0
(W - 12)(W - 16) = 0
W - 12 = 0  or  W - 16 = 0
W = 12 or W = 16

L = 28 - W

For W = 12: L = 28 - 12 = 16
For W = 16" L = 28 - 16 = 12

We get: length = 16 and width = 12
or: length = 12 and width = 16
Either answer is correct, but since people think the length is longer than the width, answer with a longer length than the width.
Answer: Length = 16 ft   Width = 12 ft

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