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qaws [65]
3 years ago
12

Derek gives a cashier a 20 dollar bill to buy a personal pizza. He is given $8.74 as change. Which equation represents the situa

tion if c is the cost of the pizza?
Mathematics
1 answer:
Allisa [31]3 years ago
8 0

Answer:

$20-$8.74= c (total cost of pizza)

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Sweets are sold loose, or pre-packed in 120g bags. The 120g bags are ?1.49 each. The loose sweets are ?0.89 for 100g. By calcula
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Answer:

The loose sweets at ?0.89 for 100 g.


Step-by-step explanation:

First, calculate the price per gram. You do this by dividing the price by the grams.

?1.49 / 120 g =  1.49 / 120 = 0.0124 (4 dp)

Because the answer was very long, I have rounded it to 4 decimal places (4 dp).

?0.89 / 100 g = 0.89 / 100 = 0.0089

Next, you must calculate both pre-packed and loose sweets to the same weight. I am calculating them both to 100 g.

0.0124 x 100 = 1.24

0.0089 x 100 = 0.89

Finally, the cheapest product for 100 g will be the better value. In this case, it is the loose sweets.






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