If you can buy 1/4 pizza for 5 dollars, how much can you purchase for 8 dollars?

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If you can buy 1/4 pizza for 5 dollars, how much can you purchase for 8 dollars?

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Answer 1 · 2017-03-26T23:17:32

$\frac{2}{5}$ $2/5$ of a pizza

Explanation:

First step: figure out how much one pizza costs. If a quarter of a pizza costs $5, it figures that one pizza costs $5 \times 4 = $ 20$ $5xx4 = $20$ . This is worked out mathematically by dividing the cost by the amount of pizza:

$\frac{5}{\frac{1}{4}} = 20$ $5/(1/4) = 20$

Now you can work out how much pizza you get for $8 by doing the same in reverse: dividing $8 by the cost for one whole pizza:

$\frac{8}{20} = 0.4 = \frac{2}{5}$ $8/20 = 0.4 = 2/5$

Answer 2 · 2017-03-27T20:48:06

$\frac{2}{5}$ $2/5$ of a pizza.

Explanation:

This question can be done as a direct proportion.
The MORE pizza you buy, the MORE you will pay.

$\frac{pizza \to}{price \to} = \frac{0.25}{5} = \frac{x}{8} \leftarrow$ $("pizza" rarr)/("price"rarr) = 0.25/5 = x/8" "larr$ cross multiply

$5 x = 0.25 \times 8$ $5x = 0.25 xx 8$

$5 x = 2$ $5x = 2$

$x = \frac{2}{5}$ $x = 2/5$

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If you can buy 1/4 pizza for 5 dollars, how much can you purchase for 8 dollars?

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