exam
Maths Puzzle
Numerical Ability
Monthly Income ($): 870 1430 1920 2460 2850 3240 3790 4510
Percent Spent on Housing: 44 39 40 35 43 38 37 33
A. Write a prediction equa
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exam Other Question
A new automobile engine can run on a mixture of gasoline and a substitute fuel. If gas costs $1.50 per gallon and the substitute fuel costs 40 cents per gallon, what percent of a mixture must be substitute fuel to bring the cost down to $1 per gallon?
The following picture shows a circular driveway with a flowerbed that lies in the middle. A family is planning to asphalt the driveway and knows the diameter of the whole circle is