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3 years ago

Calculate percentage to the nearest 0.1%.

Mathematics

1 answer:

Anna71 [15]3 years ago

4 0

9514 1404 393

Answer:

a. $4.17

b. 233.3%

Step-by-step explanation:

a. The proportion the markup (m) is to the total (t) is ...

m : t = 7 : 10

The total is the cost (c) plus the markup, so we have ...

m : t = 7 : 10 = m : (m +c) = 7 : 7 +3

Then the ratio of total price to cost is ...

t : c = 10 : 3

The menu price of the pie slice will be ...

$1.25 × 7/3 ≈ $4.17

b. The ratio of markup to cost is ...

m : c = 7 : 3 ≈ 2.333 = 233.3%

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