How many ounces are there in a gallon?
Answer(s): C
Use dimensional analysis to convert from gallons to ounces.1 Gallon = 4 Quarts1 Quart = 2 Pints1 Pint = 2 Cups1 Cup = 8 Ounces
What is 70% of 65?
Answer(s): A
Recall that: Substitute given values and solve for the unknown: Alternatively, directly multiplying 65 by 0.7 will yield the same result.
For a recipe, there are 3 eggs needed for every pound of cake needed. How many pounds of cake can be made if there are 40 eggs?
Answer(s): B
Write a proportion to represent the situation: Cross multiply and solve for the variable x:3x = 40 −> x = 131/3Only 13 pounds of cake can be made.
Evaluate:x4 − y if x = 3 and y = 20
Substitute the values of x and y into the given equation and evaluate:= 34 − (20)= 81 − 20= 61
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