jpsaad00
20.07.2019 •
Mathematics
Jeremy is making a trail mix containing raisins and peanuts. raisins cost $1.50 per pound. peanuts cost $2.50 per pound. jeremy spends $10.50 to make 5 pounds of trail mix. he uses the table below to organize this information. which equation can jeremy use to determine the amount of raisins in the trail mix? a.r + 1.50 = 1.5r b. r + (5 – r) = 5 c. 1.5r + 2.5(5 – r) = 10.50 d. 1.5r + 2.5(5 – r) = 5
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Ответ:
Option C.
Step-by-step explanation:
Let Jeremy mixes "r" pounds of raisins to make a trail mix.
As the total weight of trial is = 5 pounds
So weight of peanuts in the trail mix will be = (5 - r )
Now cost per pound of raisins = $1.50
so cost of r pounds of raisins = $1.50(r)
Cost of the peanuts = $2.50 per pound
so cost of (5 - r) pounds peanuts = $2.50(5 - r)
Jeremy spends total amount = $10.50
So expression will be
Cost of Raisins + cost of peanuts = cost of trail.
1.5r + 2.5(5 - r) = 10.50
Option C. is the answer.
Ответ:
(0,-4)
Step-by-step explanation:
4x-2y=8
y=-4-3x
4x-2(-4-3x)=8
x=0
y=-4-3x0
y=-4