Solve for x:
10 (x + 2) = 5 (x + 8)
Expand out terms of the left hand side:
10 x + 20 = 5 (x + 8)
Expand out terms of the right hand side:
10 x + 20 = 5 x + 40
Subtract 5 x from both sides:
(10 x - 5 x) + 20 = (5 x - 5 x) + 40
10 x - 5 x = 5 x:
5 x + 20 = (5 x - 5 x) + 40
5 x - 5 x = 0:
5 x + 20 = 40
Subtract 20 from both sides:
5 x + (20 - 20) = 40 - 20
20 - 20 = 0:
5 x = 40 - 20
40 - 20 = 20:
5 x = 20
Divide both sides of 5 x = 20 by 5:
(5 x)/5 = 20/5
5/5 = 1:
x = 20/5
The gcd of 20 and 5 is 5, so 20/5 = (5×4)/(5×1) = 5/5×4 = 4:
Answer: x = 4
Step-by-step explanation:
Simple the pattern is add 3
So next is 22
<span>b. (0.035)(50,000) + (0.065)(31,500)</span>
Answer:27.7million adults.
Step-by-step explanation:
The recent survey showed that 23.1 million adults have cut the cord on cable TV services and this is a 20% increase from the previous year.
If this trend continues, the amount by which the number of adults that would cut the cord on cable TV services would increase is
20/100 × 23100000 = 4620000
The number of adults expected to cut the cord next year would be
23100000 + 4620000 = 27720000
