Answer: son is 12 years old
Step-by-step explanation:
Let m be the age of mother, f be the age of father, and s be the age of son.
m + f + s = 28 x 3 = 84
m + son = 23 x 2 = 46
f + s = 25 x 2 = 50
m = 46 - s
f = 50 - s
we plug in m and f to the functions.
we get 46 - s + 50 - s + s = 84
96 - s = 84
-s = -12
s = 12 years old
If you are setting it up as a proportion then you would muiltiply the 12 and x to get 12x. Then muiltiply the 80 and 1 to get 80. So 12x=80. Divide the 12 to get your final answer
Answer:
2m-4
Step-by-step explanation:
because she has double his amount (2*m) but $4 less therefore 2m-4
Answer:
the correct answer is D) 8
Step-by-step explanation:
2 dozen= 24
2/3 of 24 is 16
24-+6=8
therefore, 8 of the cupcakes were chocolate
Answer:
a. 11
b. 18
Step-by-step explanation:
8 + 3 = 11
8 + 8 + 2 = 18
