Answer:
x=75
Step-by-step explanation:
We can use proportions to solve this problem. Put the side of the small triangle over the side of the large triangle.
42 50
------ = ----------
42+63 50+x
42 50
------ = ----------
105 50+x
Using cross products
42(50+x) = 50*(105)
2100+42x = 5250
Subtract 2100 from each side
2100-2100+42x = 5250-2100
42x =3150
Divide by 42
42x/42 = 3150/42
x = 75
Answer:
9 years old
Step-by-step explanation:
Answer:
Step-by-step explanation:
1. You could write it as a rate.
5 movies = 75 movies
25 TV sitcoms = x sitcoms
2. Cross multiply:
5x = 1875
3. Divide
x = 375 TV sitcoms
you could do the same thing for the second question
5 movies = x
25 sitcoms = 50 sitcoms
cross multiply:
25x = 250
divide:
x = 10
