There are 127 lbs of fruits in the store: apples, oranges, and peaches. There are four times as many apples as there are peaches , and 7 lbs more oranges than peaches. How many apples, oranges, and peaches are there in the store?
1 answer:
Let x------> amount of pounds of apples y------> amount of pounds of oranges z-----> amount of pounds of peaches we know that x+y+z=127------> equation 1 x=4z-----> equation 2 y=7+z----> equation 3 substitute equation 2 and equation 3 in equation 1 x+y+z=127----> (4z)+(7+z)+z=127---> 6z=127-7---> 6z=120----> z=20 lb x=4z---> x=4*20----> x=80 lb y=7+z----> y=7+20---> y=27 lb amount of pounds of apples----> 80 lb amount of pounds of oranges----> 27 lb amount of pounds of peaches---> 20 lb
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40 sq ft
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I believe you did but if you need help feel free to chat with me
The inverse is f-1 (x) =2/3- x/3