Let c represent the total time during which commercials appeared.
Then 3c+7 = program time = 30 minutes total
Then 3c = 23 minutes, and c = 7 2/3 minutes. This is close to 7.7.
Answer:
D. 8/9
Step-by-step explanation:
Calculators Rock!!!
Answer:
A
Step-by-step explanation:
Multiply 5 with the expression in the bracket you will get 60y-90-20x
ertificates 6.00% per annum ---x
AA bond 11.00% per annum ---y
x + 1 y= 160000 ------------------------1
6.00% x + 11.00% y= 15600
Multiply by 100
6 x + 11 y= 1560000.00 --------2
Multiply (1) by -6
we get
-6 x -6 y= -960000.00
Answer:
30 > x
Step-by-step explanation:
-13 > x-43
Add 43 to each side
-13+43 > x-43+43
30 > x