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Korvikt [17]
2 years ago
10

PLEASE HELP ME I GIVE BRAINLIEST

Mathematics
2 answers:
mariarad [96]2 years ago
7 0

Decimal Form: 11.5

Fraction Form: 11 1/2

sp2606 [1]2 years ago
4 0

Answer:

40\frac{5}{8}

Step-by-step explanation:

The formula for the volume of a rectangular prism is V = l · w · h. We can use this to solve.

1. Convert all mixed numbers into improper fractions:

6\frac{1}{2} =\frac{13}{2}

2\frac{1}{2} =\frac{5}{2}

2. Plug in given values:

V = \frac{13}{2} (\frac{5}{2} )(\frac{5}{2} )

3. Multiply:

V = \frac{65}{4} (\frac{5}{2} )

V = \frac{325}{8}

4. Convert improper fraction into a mixed number:

\frac{325}{8} = 40\frac{5}{8}

V = 40\frac{5}{8}

hope this helps :)

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I have a stamp collection. 70% of my stamps are Canadian and 30% are international. I have 500 more Canadian stamps than interna
shutvik [7]

Answer: N= 375, C= 875

Step-by-step explanation:  Let Canadian stamps=C

Let International stamps=N

C=875     and        N=375

 

C - 500=N,  .70(N + C) =C

Solve the following system:

{C-500 = N |     (equation 1)

0.7 (C+N) = C |     (equation 2)

Express the system in standard form:

{-N+C = 500 |     (equation 1)

0.7 N-0.3 C = 0 |     (equation 2)

Add 0.7 × (equation 1) to equation 2:

{-N+C = 500 |     (equation 1)

0 N+0.4 C = 350 |     (equation 2)

Divide equation 2 by 0.4:

{-N+C = 500 |     (equation 1)

0. N+C = 875. |     (equation 2)

Subtract equation 2 from equation 1:

{-N+0 C = -375. |     (equation 1)

0 N+C = 875. |     (equation 2)

Multiply equation 1 by -1:

{N+0 C = 375. |     (equation 1)

0 N+C = 875. |     (equation 2)

Collect results:

Answer: |  N = 375        and             C=875

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