Which of the following expressions represents the sum of three times a number and eight times a different number?
A. 3x+8y
B. 8x+3x
C. 3x-8y
D. 8x-3y
Let two numbers be x and y. Then
Three time a number=3x
Eight times a different number = 8y
Sum of the two is 3x+8y
Therefore, the Correct Answer is A.
More Questions on TEAS 7 Math
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Q #1: Which of the following is the independent variable in the equation below? f(t)=4t+9
A. f
B. 9
C. t
D. 4
Answer Explanation
From the given equation, the variable t is varied to obtain the value of f(t). This means that t is an independent variable, modified variable while f(t) is a dependent variable, a measured value.
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Q #2: Which of the following is the mostly likely weight of a pencil?
A. 25 kg
B. 25 cm
C. 25 mg
D. 25 g
Answer Explanation
The most likely weight of pencil is 25 g, because a pencil is a lighter object which is measured in grams.
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Q #3: A soccer field is rectangular in shape and is 100 meters long and 75 meters wide. The hectare is a metric unit of are often used to measure larger areas. Given that 1 hectare = 10000 meters2, which of the following represents the soccer field’s are in hectares?
A. 0.75 hectares
B. 7.5 hectares
C. 7,500 hectares
D. 75,000,000 hectares
Answer Explanation
The dimension of the field is shown below.
Area of rectangle = length * width
Area of rectangle = 100 m *75 m = 7500 m2
Area of the rectangle in hectares =
