evelinakravets
evelinakravets
23-12-2018
Mathematics
contestada
please help me with this geo problem
Respuesta :
jcherry99
jcherry99
23-12-2018
Answer:
x = 1.25
y = 1.75
Step-by-step explanation:
Find x
8/10 = 5/(5 + x) Cross multiply
8*(5 + x) = 10*5 Combine on the right
8(5 + x) = 50 Remove the brackets on the left.
40 + 8x = 50 Subtract 40 from both sides.
40-40 +8x = 50-40 Combine
8x = 10 Divide by 8
8x/8 = 10/8 Divide
x = 1.25
Find y
7/(7 + y) = 8/10 Cross multiply
8*(7 + y) = 10 * 7 Combine the right
8(7 + y) = 70 Remove the brackets.
56 + 8y = 70 Subtract 56 from both sides
56 - 56 + 8y = 70 - 56 Combine
8y = 14 Divide by 8
y = 1.75
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