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3 years ago

3/7 of a number is 15,what is the number

Mathematics

1 answer:

tatyana61 [14]3 years ago

8 0

Answer:

The answer is 35

Step-by-step explanation:

If you do 15 divided by 3/7 you herb 35 you can check it by doing 3/7 of 35 and you get 15

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A truck is being filled with cube-shaped packages that have side lengths of 1/4 foot. The part of the truck that is being filled

n200080 [17]

Answer:

24000 pieces.

Step-by-step explanation:

Given:

Side lengths of cube = $\frac{1}{4} \ foot$

The part of the truck that is being filled is in the shape of a rectangular prism with dimensions of 8 ft x 6 1/4 ft x 7 1/2 ft.

Question asked:

What is the greatest number of packages that can fit in the truck?

Solution:

First of all we will find volume of cube, then volume of rectangular prism and then simply divide the volume of prism by volume of cube to find the greatest number of packages that can fit in the truck.

$Volume\ of\ cube =a^{3}$

$=\frac{1}{4} \times\frac{1}{4}\times \frac{1}{4} =\frac{1}{64} \ cubic \ foot$

Length = 8 foot, Breadth = $6\frac{1}{4} =\frac{25}{4} \ foot$ , Height = $7\frac{1}{2} =\frac{15}{2} \ foot$

$Volume\ of\ rectangular\ prism =length\times breadth\times height$

$=8\times\frac{25}{4} \times\frac{15}{2} \\=\frac{3000}{8} =375\ cubic\ foot$

The greatest number of packages that can fit in the truck = Volume of prism divided by volume of cube

The greatest number of packages that can fit in the truck = $\frac{375}{\frac{1}{64} } =375\times64=24000\ pieces\ of\ cube$

Thus, the greatest number of packages that can fit in the truck is 24000 pieces.

7 0

3 years ago

Simplify the expression.<br> (4a- 80 - 4a2) + (7a3 - 7 - 6a)

allsm [11]

Answer:

the answer should be 7a^3-4a^2-2a-87

3 0

3 years ago

Suppose that 24 inches of wire costs 96 cents.

Alexxx [7]

At the same rate, 31 inches of wire will cost 124 cents.

3 0

2 years ago

0.3% of what number is $0.66?

UNO [17]

$0.66 / 0.3% = 2.2
Check:
2.2 * 0.3 = 0.66

Hope this helps!

8 0

3 years ago

Read 2 more answers

What is another way to write -3+(4+7) ?

shutvik [7]

You could use -3 + 11

8 0

3 years ago