Answer:
1. 35 boys and 28 girls
2. 42 long-sleeved shirts
3. 40 total outfits
Step-by-step explanation:
1.
Ratio of Boys to Girls is 5 is to 4, that means that there are "5" parts boys and "4" parts girls. So that makes:
5 + 4 = 9 parts in total
Total there are 63 kids, so each part would be:
63/9 = 7 kids per part
Now,
5 part are boys so 5 * 7 = 35 boys
and
4 parts are girls so 4 * 7 = 28 girls
2.
Long Sleeved Shirts = 60% of the total
Total is 70
So, we basically need 60% of 70
First, we want to convert 60% to decimal. We divide by 100, that's it! So:
60/100 = 0.6
Now to get the number we simply multiply the decimal of 60% we got, which is 0.6 with the total, which is 70. Thus,
0.6 * 70 = 42
Thus, there are 42 long-sleeved shirts
3.
Lily has 30 dress, WHICH ARE 75% of the total outfits she has.
First of all, what is 75% in decimal?
We divide by 100:
75/100 = 0.75
We can now write:
30 is 0.75 times the total
Right?
Which number's 75% (or 0.75) is 30? This is what we need to figure out!
0.75 * which number would give us 30?
We have to simply divide 30 with 0.75 to get total number of outfits:
30/0.75 = 40 total outfits
