Answer:
32
Step-by-step explanation:
let b represent the number of blue marbles then
yellow = 5b + 7 and
b + 5b + 7 = 37, that is
6b + 7 = 37 ( subtract 7 from both sides )
6b = 30 ( divide both sides by 6 )
b = 5
Thus there are 5 blue and 5(5) + 7 = 25 + 7 = 32 yellow marbles
Answer:
114 cm2
Step-by-step explanation:
Answer:
27
Step-by-step explanation:
2:3
18:?
-
2 x 9 = 18
3 x 9 = 27
Answer:
$480
Step-by-step explanation:
8x6x10=480
Answer:
A=30
Step-by-step explanation:
