100% is 28 because 50% is half of 100% 14•2=28
Answer:
The difference between - 4 1/2 and -1 is -3 1/2
—4 1/2 --(—1)
— 4 1/2 + 1
— 3 1/2
Step-by-step explanation:
Given:
3 teaspoons of salt for every 5 cups of flour.
How much salt is needed for 15 cups of flour?
This is a proportion problem:
a/b = c/d where ad = bc
3/5 = x/15
3*15 = 5x
45 = 5x
45/5 = x
9 = x
C. 9 teaspoons of salt is needed for 15 cups of flour.
3/5 = 9/15
3*15 = 5*9
45 = 45
