tre9990
09.06.2021 •
Mathematics
5 oranges cost $2. Find the cost of 20 oranges.
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Ответ:
Work Shown:
(5 oranges)/(2 dollars) = (20 oranges)/(x dollars)
5/2 = 20/x
5x = 2*20 cross multiply
5x = 40
x = 40/5 dividing both sides by 5
x = 8
20 oranges cost $8
Another way to approach the problem is to note that the jump from "5 oranges" to "20 oranges" is "times 4".
5*4 = 20
So we'll apply the "times 4" operation to the old cost of $2 to get the new cost being 2*4 = 8 dollars
Ответ:
$8
Step-by-step explanation:
if 5 oranges cost $2 then 1 orange costs 2/5 of a dollar, or 40 cents
20 oranges multiplied by 40 cents is $8
or you can set up a proportion:
2/5 = x/20
cross-multiply to get:
5x = 40
x = 8
Ответ:
I hope this helps...this is the correct answer.