Answer:
14.8
Step-by-step explanation:
By the Pythagorean theorem, ...
... x² = 7² + 13² = 218
... x = √218 ≈ 14.7648 ≈ 14.8
Answer:
He started with 180.
Step-by-step explanation:
If 90 is 50% of what he started with, then the other 50% is 90
6000 pounds per day is equal to 21,000 tons per week
0.20a=220
Where 0.20 is the decimal form of 20%
a is the unknown number
0.20a=220
------- -----
0.20 0.20
a=1100
220 is 20% of 1100.
Do you mind typing the equation it looks incomplete.