I found the awnser by doing 10x10x2 witch equals 200. Then i know that 10x9 equals 90 so, you would get 29 dimes.
Answer:
There would be 80 boys.
Step-by-step explanation:
2 to 3 can be simplified to 1 to 1.5, if we divide 120 by 1.5 we get 80. We also know this is true because there would be 50% more girls than boys: 80*1.5=120
3(8 + 6n) = 6n - 12
equals n = -3.
First, expand. Your problem should look like: 24 + 18n = 6n - 12.
Second, subtract 6n from both sides. Your problem should look like: 24 + 18n - 6n = -12.
Third, simplify 24 + 18n - 6n to 24 + 12n. Your problem should look like: 24 + 12n = -12.
Fourth, subtract 24 from both sides. Your problem should look like: 12n = -12 - 24.
Fifth, simplify -12 - 24 to -36. Your problem should look like: 12n = -36.
Sixth, divide both sides by 12. Your problem should look like: n = -
.
Seventh, simplify
to 3. Your problem should look like: n = -3, which is your answer.