Joelle and Shannon shared some marbles. Joelle had 50% of what Shannon had at first. Joelle then gave Shannon
38 of what she had. How many less percent did Joelle have than Shannon in the end? Correct the answer to 1 decimal place.
| |
Joelle |
Shannon |
Comparing Joelle
and Shannon at first |
2x4 =
8 u |
1x4 =
4 u |
| Before |
8x1 =
8 u |
|
| Change |
- 3x1 =
- 3 u |
+ 3x1 =
+ 3 u |
| After |
5x1 =
5 u |
7 u |
50% =
50100 =
12The number of marbles that Joelle had at first is repeated. Make the number of marbles that Joelle had at first the same. LCM of 2 and 8 is 8.
Number of marbles that Shannon had in the end
= 4 u + 3 u
= 7 u
Number of less marbles that Joelle had than Shannon in the end
= 7 u - 5 u
= 2 u
Number of less marbles that Joelle had than Shannon in the end in percent
=
27 x 100%
≈ 28.6%
Answer(s): 28.6%
