Answer:
12
Step-by-step explanation:
5^2+12^2=13^2. It is a right triangle
12:15 = 8:X
X=cardboard box shadow
you find x by treating this equation like a proportion.

so 15(8)÷12=x
X=10
Answer:
in total 5 hours
Using proportions part/whole, percent/100 you put the 40 in the percent spot and the 2 in the part spot cross multiply and divide so 2 x 100 divided by 40 and you get 5
Here... we're dividing first to find out how much he makes per hour. 313.25 divided by 35 so he makes $8.95 per hour. now divide 366.95 by 8.95 to find out how many hours he worked this week, so this week he worked 41 hours this week.
Answer:
Step-by-step explanation:
The top triangle is similar to the whole triangle because of AAA
Then we know that the corresponding sides are similar
9/81=(3x-20)/(3x-20+56)
1/9=(3x-20)/(3x+36)
cross multiply
9(3x-20)=3x+36
27x-180=3x+36
24x=216
x=9