Fast food. If four out of five doctors prefer fast food, then at a convention of 445 doctors, how many prefer fast food?

ghettoking6q

ghettoking6q

Answered question

2022-08-08

Fast food. If four out of five doctors prefer fast food, then at a convention of 445 doctors, how many prefer fast food?

Answer & Explanation

Deja Navarro

Deja Navarro

Beginner2022-08-09Added 17 answers

If 4 out of 5 doctors perfer fast food, you write it asa fraction.
Since we know the amount of doctors at the convention we canfind the amount that perfer the fast food through anotherfraction. since x amount of drs would perfer the fast food wecan write it as another fraction x/445
4 5 = x 445
just cross multiply to find x
1780=5x
divide to get x
x=356
Trevor Rush

Trevor Rush

Beginner2022-08-10Added 6 answers

If four out of five doctors prefer fast food, your first fractionwill be 4/5.
The question asks how many (x) out of 445 prefer fast food, yoursecond fraction will be x/445.
Set these two fractions equal to one another.
4/5=x/445
Cross multiply this equation which results in 5x=1780.
Solve this equation for x.
x=1780/5
x=356.
To check your answer, divide 4 into 5 which results in .8
Divide 356 into 1780 which results in .8.
Your answer checks out to be correct at x=356.

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