Combo meals originally sell for $7.94 and are now on sale at 10% off. What is the cost of the meal after the discount is deducted?

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Answer 1 · 2016-04-14T16:12:52

$ $7.146$

Formula is $D = P*R$

Where:
$D$ = Discount Price
$P$ = Original Price
$R$ = Rate of Discount

Plugging All the Values:

We need to convert the 10% (Percentage to Decimal), Just simply remove the percentage sign then divide by 100. We get 10/100 = 0.10 or 0.1

$D = 7.94 * 0.10$

$D = 0.794$

$Discounted Price$ = Original Price - Discount Price

Discounted Price = 7.94 - 0.794

= $ $7.164$

Answer 2 · 2016-04-14T16:23:42

$$7.15$

10% is just another way of writing $10/100$

Considering the question a bit at a time

10% of $7.94 is $10/100xx7.94 = 0.794" "$ ( in dollars)

So the price after reduction is $$(7.94 - 0.794) = $7.146$

Rounding this to 2 decimal places gives

$" "$7.15$
'~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Doing the whole thing in one go:

$" "$7.94(1-10/100)=$7.146$