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frez [133]
3 years ago
8

A rectangular prism has volume 4,800 cubic yards, length 20 yards, and height 40 yards. Find its width, in yards.​

Mathematics
1 answer:
Oksi-84 [34.3K]3 years ago
8 0

Answer: 6 yards.

Step-by-step explanation:

First, multiply the length and the height to get 800. You know now that 800 times the width will be your volume, 4800. To find the width, divide the volume by 800, which is the length times the height. Check your work by doing 40 times 20 times 6. You get 4800, which is your volume, which means your correct!

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In the diagram, AB:BC is 3:4 and AC:42 Find BC
Afina-wow [57]
From the diagram:
AB + BC = AC
we know that AC = 42, therefore:
AB + BC = 42 ..............> equation I

We know that the ratio AB:BC is 3:4. This means that:
AB/BC = 3/4
4AB = 3BC
AB = (3/4) BC ...............> equation II

Substitute by equation II in equation I to get BC as follows:
(3/4) BC + BC = 42
1.75 BC = 42
BC = 24

Substitute with the value of BC in equation II to get AB as follows:
AB = (3/4) * 24 = 18

6 0
3 years ago
What number is 4 time another. The sum of the reciprocals is 15/4. find the numbers
antoniya [11.8K]

Answer:

3/4 , 3

Step-by-step explanation:

Let one number = x

Other = 4x

Sum:

x + 4x = 15/4

5x = 15/4

x = 3/4

Thus the numbers are 3/4 , 3

8 0
2 years ago
Brady recorded the number and color of cars in the parking lot. 45% of the cars in the parking lot were white. If Brady counted
elena-14-01-66 [18.8K]

Answer:

180

Step-by-step explanation:

at45% is white and its 81 so i can tell 50% is 90 so I multiplied that by two and got 180

im in 6th grade

3 0
3 years ago
Read 2 more answers
you bought 4 bananas and 5 apples at the store for $2.50 the next day you bought 10 bananas and 3 apples at the store for $3.40.
PIT_PIT [208]
Bananas cost: $0.25 
Apples cost: $0.30

4b+5a=2.50
10b+3a=3.40 
You multiply the equations by the variables so they can cancel out. For example the first one by 3 and the second by 5 so you have

12b+15a=7.50
50b+15a=17
Subtract them and end up with

-38b=-9.5 
solve: b=0.25, substitute b in any equation and get a=0.30
Hope this helped
4 0
3 years ago
Write the expression in the standard form a+b i <br>(8-8i) + (1+6i )= (simplify the answer)
kotegsom [21]

Answer:

Step-by-step explanation:

(8 - 8i) + (1 + 6i)

8 + 1 - 8i + 6i

9 - 2i

4 0
3 years ago
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