Question

nas igualdades seguintes, determine os valores de A, B e C:
a)A/7=30/42
b)24/40=b/5
c)9/C=72/16

Answer 1

Oi 

a) 

a/7 = 30/42
a/7 = 5/7 
a = 5

b)

24/40 = b/5
40b = 120
b = 30 

c)

9/c = 72/16 

9/c = 9/2 

c = 2

.

Answer 2

a)5/7=30/42
b)24/40=3/5
c)9/8=72/16 reposta A=5;B=3 e C=8