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3 years ago

12

One cooy machine can run off copies in 198 minutes. A newer machine can do the same job in 126 minutes. How long does it take th

e two machines, working together, to make all of the necessary copies?

1 answer:

yanalaym [24]3 years ago

4 0

This depends on the necessary number of copies.

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To fill the 18 gallon gas tank in Samantha's car, it cost her $49.14, find the cost per gallon.

Stolb23 [73]

2.37 dollars , divide 49.14 by 18 this will give you the amount you pay per gallon

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3 years ago

Read 2 more answers

The total cost after tax to repair Deborah's computer is represented by 0.09(60h)+60h, where h represents the number of hours it

marishachu [46]

Answer:

0.09(60h)

Step-by-step explanation:

The part that represents the tax is 0.09.

This is because, we can rewrite the sum as;

Amount of tax + Total cost for the number of hours

Now, the amount of tax can only be a percentage of the total

We can write 0.09 as 9/100

This can be interpreted as 9% of the total amount

So therefore we can rewrite the amount as;

9% of 60h + 60h

So the part that represents the amount of tax Deborah has to pay is 0.09(60h)

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3 years ago

Subtracting Fractions<br> What is<br> -23 7<br> 6

pshichka [43]

Answer:

-9/6

Step-by-step explanation:

simple, multiply the 7/3 by 2 to get the same denominator, then just subtract

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3 years ago

What is the horizontal distance between points A(-2.5, -1.5) and<br> B(-0.5, -1.5)

enot [183]

Answer:

2 points

Step-by-step explanation:

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2 years ago

A building in the shape of a square pyramid is being built in Las Vegas. The height of the building will be 309 feet, and a size

finlep [7]

Answer: 51.5 cubic feet.

Step-by-step explanation:

Since, The height of the building will be 309 feet, and a size of the base measures 250 feet.

And, we know that the volume of the square pyramid = $(size of the base)^2\times \frac{height}{3}$

Here, size of the base of the square pyramid = 250 feet.

And, height = 309 feet.

Therefore, the volume of the given square pyramid,

$V=(250)^2\times\frac{309}{3}$

⇒ $V=62500 \times\frac{309}{3}$

⇒ $V= \frac{19312500}{3}$ = 6437500 cubic feet.

Again according to the question,

The scale model that is displayed at a convention is one fiftieth the size of the actual building.

Therefore, Volume of the scale model = the volume of the given square pyramid/125000

= 6437500/125000= 51.5 cubic feet.

Thus, the volume of the scale model is 51.5 cubic feet.

6 0

4 years ago