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4 years ago

Jenna is drawing a sketch of her room. The room is 15 feet long by 12 feet wide. The

Mathematics

1 answer:

SOVA2 [1]4 years ago

3 0

Answer:

4 inches

Step-by-step explanation:

Actual dimensions:

Length = 15 feet

Width = 12 feet

Scale dimensions:

Length = 5 inches

Width = x inches

Write a proportion:

$\dfrac{\text{Actual length}}{\text{Scale length}}=\dfrac{\text{Actual width}}{\text{Scale width}}\\ \\ \\\dfrac{15\ feet}{5\ inches}=\dfrac{12\ feet}{x\ inches}\\ \\x=\dfrac{5\ inches\times 12\ feet}{15\ feet}=4\ inches$

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4 years ago

What is $6.25 marked up 25%

Marta_Voda [28]

Answer:

$6.25 marked up 25% is $7.81

Step-by-step explanation:

First, you have to find what 25% is of 6.25.

Step 1: Our output value is 25.

Step 2: We represent the unknown value with x.

Step 3: From step 1 above, 25=100%.

Step 4: Similarly, x=6.25%.

Step 5: This results in a pair of simple equations:

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Step 6: By dividing equation 1 by equation 2 and noting that both the RHS (right hand side) of both

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Step 7: Again, the reciprocal of both sides gives

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Once you've known what 25% is, you add it to 6.25.

1.56+6.25= 7.81

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4 years ago