Let M be the age of Maggie and B the age of her younger Brother:
Rewrite the problem from English language to Math's:
B = 2.M - 10 (1)
and M + B = 29 (Given) OR B = 29 -M (2)
Plug 2) into 1):
29 -M = 2.M -10
29 + 10 = 3 M →→3M = 39 and M = 39/3 = 13
Replace M by 13 and you will find B =6
Then Maggie = 13 year old and her brother B = 6 year old
Answer:
15 girls
Step-by-step explanation:
Girls : Boys
5 3
To get to 9 boys multiply by 3
Girls : Boys
5*3 3*3
15 9
There are 15 girls
We know that
1 liter----------------> 1000 ml
J<span>ennifer punch is 5 liters----------------> 5*1000=5000 ml
</span><span>Her brother punch-------------------------> 750 ml
[total </span><span>two batches]=(5000+750)----------> 5750 ml
the answer part A) is 5750 ml
Part B) </span><span>how many 180 mL servings would they have?
</span>[180 mL servings]=5750/180=31.94-----------> 31
they would have 31 (180 ml servings)
punch left over=[5750-31*180]=170 ml
there would be 170 ml of punch left over
Answer:
I just finished taking the test and the answer is 15s + 25c ≤ 1500
