J
The farmer has acres for growing wheat. Change these mixed numbers to fractions in order to multiply:
14.
B
If 6 biscuits remained, 42 − 6 = 36 were eaten by the 12 guests.
so the average number of biscuits eaten by the guests was
15.
J
so
Jake and Ken each weigh 50 pounds, so 50 + 50 + Larry’s weight = 180 pounds, and Larry must weigh 80 pounds.
16.
B
Let the number be x. Translating gives you 3 + 4x = 11, 4x = 8, and x = 2.
17.
H
Translate from English to math. The sum of 8 and b is simply 8 + b. The question states that this is equal to 20 minus the same
number, or 20 − b. So your equation is 8 + b = 20 − b, and you can solve for b:
18.
C
Rachel worked W hours, and Liz worked 3 less than twice as many hours as Rachel, or 2 W − 3. Add these expressions to find
the total number of hours worked by Liz and Rachel together:
W + 2W − 3 = 3W − 3, choice (C)
19.
