Sarah is 14
The twins are 12
The youngest (n) is 7
14+(12+12)+7=45
n=7
Answer:
There were 53 cakes ordered.
Step-by-step explanation:
☆Cross multiply.
▪Happy to help <3
If we solve the left side of the given equation,
1/a + 1/b = 1/c
we get an answer of,
b+a / ab = 1/c
Since ab = c, we can conclude that b + a is 1. The average of these two numbers is equal to there sum divided by 2. The answer is therefore equal to 0.5.
Answer:
Perimeter = 16x + 16
Area = 40x + 15
Step-by-step explanation:
Perimeter = the sum of all the side lengths
Perimeter = 2(8x+3) + 2(5) = 16x + 6 + 10 = 16x + 16
Area = product of base times height
Area = (8x+3)*5 = 40x + 15
Answer:
2.3456 x 10^-5
Step-by-step explanation:
