Let the number of cookies that kate eats be ‘n’
kate : n
nacy : 2n-4
avery : 2(2n-4)
n + 2n-4 + 2(2n+4) = 18
7n - 12 = 16
7n = 28
n = 4
kate : 4
nacy : 2x4 - 4 = 4
avery : 2(2x4 - 4) =8
Answer:
$40.50
Step-by-step explanation:
9% of 450 is 40.5
When I transfer all those fractions into a fraction with a denominator of 18, I get 30.5/18. From there, a little more math is needed however.
Answer:
Step-by-step explanation:
Convert these mixed fractions to improper fractions.
3 3/5 = 18/5
-8 1/3 = -25/3
Now, it is easier to multiply them. Multiply the numerators and the denominators.
<u>18</u> x <u> </u> <u>25</u> = <u>450</u>
5 3 15
Simplify the final answer by dividing 450 ÷ 15, which is 30.