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STALIN [3.7K]
2 years ago
12

Please help me solve this step by step please :(

Mathematics
1 answer:
Ratling [72]2 years ago
3 0

Answer:

B) 60.21 ft²

Step-by-step explanation:

Area of a triangle = 1/2bh

You can‘t used mixed measurements (feet and inches), so you have to convert each length to inches

8’6”=102’

14’2”=170’

Now find the area

1/2 x 102 x 170 = 8670 in²

This is one of the answers, but the quetion asks how many quart feet you need.

So, convert it back to feet.

8670 x 0.06944444444 = 60.2083333

(You could also have converted the two lengths to feet. 8’6” = 8.5 ft.  14’2” = 14.16666666.  This way would probably have been faster.

1/2 x 8.5 x 14.166666 = 60.20833333)

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Solve n x 8 = 24<br> please help me and solve the equation.
zaharov [31]

Answer:

3

Step-by-step explanation:

Set it up as

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5 0
3 years ago
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A tank can be filled by one pump in 3.2 hours and by another pump in 80 minutes. A third pump can drain the tank in 2 hours and
Mademuasel [1]

Answer:

Rounding to the nearest minute, it would take 95 minutes, or 1 hour and 35 minutes.

Step-by-step explanation:

Let's convert each time to minutes:

3.2 hours = 192 minutes

80 minutes = 80 minutes

2 hr 20 min = 140 minutes

Next, let's find the least common multiple:

LCM(192, 80, 140) = 6720

So let's say the volume of the tank is 6720 units.  The speed of each pump is therefore:

Pump 1 = 6720 units / 192 minutes = 35 units/minute

Pump 2 = 6720 units / 80 minutes = 84 units/minute

Pump 3 = -6720 units / 140 minutes = -48 units/minute

Their combined speed is:

35 + 84 − 48 = 71 units/minute

So the time to fill the tank is:

6720 units / (71 units/minute) = 94.65 minutes

Rounding to the nearest minute, it would take 95 minutes, or 1 hour and 35 minutes.

6 0
3 years ago
Ashley can bake 64 cakes in 12 hours how many can she bake in 36 hours
mrs_skeptik [129]

Answer:

192 cakes

Step-by-step explanation:

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You multiply both numbers by 3:

12*3= 36 hours

64*3=192 cakes

192 cakes in 36 hours

6 0
3 years ago
8x - 5 - 6 - 7 <br> Can someone solve this
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Answer:

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Step-by-step explanation:

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4 0
2 years ago
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How does knowing the slope and y-intercept help you graph and write the equation of a line?
IgorLugansk [536]

Answer:

It allows to to know y-intercept formula which is used to graph a line.

Step-by-step explanation:

Y-intercept formula:

y=mx+b

  M: slope (keep in fraction if it is fraction, to help you graph)

  B: y-interecept

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