Respuesta :
Answer:
Charlie can buy 12 cantaloupes with $28
Step-by-step explanation:
If he is able to buy 3 cantaloupes with $7, the price per cantaloupe can be determined by dividing ou money spent by the number of cantaloupes:
$7/per 3 cantaloupes, this will give us a cost of $7/3 per cantaloupe.
With our single price, we can take the $28 we have and divide in by the unit price for the cantaloupes to determine how many we can buy:
$28/(7/3)=12 cantaloupes
Hi!
To solve this, we can set up a proportion.
First, we will make two ratios that we can set equal to each other.
If Charlie bought three cantaloupes for $7, our ratio would be 3:7 or [tex]\frac{3}{7} [/tex].
Now, we want to know how many cantaloupes for $28, so our ratio would be x:28 or [tex]\frac{x}{28} [/tex], where 'x' is the number of cantaloupes.
Now, we set those fractions equal to each other.
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[tex]\frac{x}{28} = \frac{3}{7} [/tex]
Now, we can use cross-products to solve for x.
[tex]7x = 84\\ [/tex]
Divide both sides by 7
[tex]x=12[/tex]
Therefore, he can buy 12 cantaloupes with $28.
(See BELOW if you do not know what cross products are)
