Answer:
7. D) 180
7. C) 24%
7. D) 2 out of 9
7. D
Step-by-step explanation:
36 doesn't go into 5
45 doesn't go into 4
60 doesn't go into 9
180/4 = 45
180/3 = 60
180/5 = 36
180/9 = 20
We can make this problem even easier by converting the denominator from 25 to 100. This can be done with multiplication (x4)
Whatever you do to the denominator, you must also do to the numerator, so if we multiply both sides by 4, we get 24/100, which is equivalent to .24
total: 81 pieces of jewelry
18/81 or 2/9 (divide numerator and denominator both by 9)
.67 = 67/100
.607 = 607/1000 or 60.7/100
.07 = 7% or 7/100
.067 = 6.7% or 6.7/100
