Hilda had 6 times as many marbles as Sabrina at first. After Hilda gave 45 marbles to Sabrina, they each had the same number of marbles in the end. How many marbles did Hilda have at first?
| |
Hilda |
Sabrina |
| Before |
6 u |
1 u |
| Change |
- 45 |
+ 45 |
| After |
6 u - 45 |
1 u + 45 |
Comparing Hilda and
Sabrina in the end |
1 |
1 |
The number of marbles that Hilda and Sabrina had in the end is equal.
6 u - 45 = 1 u + 45
6 u - 1 u = 45 + 45
5 u = 90
1 u = 18
Number of marbles that Hilda had at first
= 6 u
= 6 x 18
= 108
Answer(s): 108
