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WINSTONCH [101]
3 years ago
9

Amy and John shared 150 peaches. (1/3) of what Amy has equals to (1/2) of what John has. How many does Amy have? How many does J

ohn have?
Mathematics
2 answers:
frosja888 [35]3 years ago
8 0
If my math is correct amy has 90 and john has 60
Ymorist [56]3 years ago
3 0

Let's assume

Amy has x peaches

John has y peaches

Amy and John shared 150 peaches

so, we get

x+y=150

now, we can solve for y

y=150-x

we are given

(1/3) of what Amy has equals to (1/2) of what John has

\frac{1}{3} x=\frac{1}{2}y

now, we can plug y

\frac{1}{3} x=\frac{1}{2}(150-x)

we can cross multiply

and we get

2x=3(150-x)

2x=450-3x

5x=450

x=90

now, we can find y

y=150-90

y=60

so,

Amy has 90 peaches

John has 60 peaches..........Answer


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<h3>Answers:</h3><h3>The shortest side is 15 ft</h3><h3>The middle side is 18 ft</h3><h3>The longest side is 26 ft</h3>

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Define the three sides to be a,b,c such that a < b < c

So c is the longest side, and 'a' is the shortest with b in the middle.

"longest side is 4 ft shorter than twice the shortest side" means that c = 2a-4

"third side is 3 ft longer than the shortest side" so b = a+3

Both b and c are in terms of 'a', allowing us to do substitutions like so

a+b+c = perimeter

a+b+c = 59

a+(a+3)+c = 59 .... first substitution, plug in b = a+3

a+(a+3)+(2a-4) = 59 ... second substitution, plug in c = 2a-4

4a-1 = 59 .... combine like terms

4a = 59+1 ... add 1 to both sides

4a = 60

a = 60/4 ... divide both sides by 4

a = 15

The shortest side is 15 ft

b = a+3 = 15+3 = 18

The middle side is 18 ft

c = 2a-4 = 2*15-4 = 26

The longest side is 26 ft

---------------------

Check:

The three sides should add up to a perimeter of 59 ft

a+b+c = 15+18+26 = 59

so the answer is confirmed

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