Sarah has 3 times as many beads as Ivory. Ivory has
58 as many beads as Erika. If the three of them have a total of 84 beads, how many beads does Sarah have?
| Sarah |
Ivory |
Erika |
| 3x5 |
1x5 |
|
| |
5x1 |
8x1 |
| 15 u |
5 u |
8 u |
The number of beads that Ivory has is repeated. Make the number of beads that Ivory has the same. LCM of 1 and 5 is 5.
Total number of beads that the three of them have
= 15 u + 5 u + 8 u
= 28 u
28 u = 84
1 u = 84 ÷ 28 = 3
Number of beads that Sarah has
= 15 u
= 15 x 3
= 45
Answer(s): 45
