Mathematics: Jonathan has 8 stamps.some are 3 cent stamps and some are 5 cent stamps.if the total value of the stamps is 36 cents. how many of each type of stamp does he have ?

Jonathan has 8 stamps.some are 3 cent stamps and

Ответ:

GhostBoooty

15.03.2022

Let x= number of 3 cent stamps
let y=number of 5 cent stamps
x+y=8
3x+5y=36

3x+5y=36 3x-5y=36
-3(x+y=8) . -3y-3y=-24
2y=12
y=6

x+6=8
-6 . -6
x=2

There will be 2 3 cent stamps and 6 5 cent stamps

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Ответ:

nique1024

15.02.2021

Mathematics

(0.5c - 4) u just need to miltiply what’s in the parentheses by 1/2

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Jonathan has 8 stamps.some are 3 cent stamps and some are 5 cent stamps.if the total value of the stamps is 36 cents. how many of each type of stamp does he have ?

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