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MTLE | Math Practice Test | Problem 1 - Free Printable

$MTLE | Math Practice Test | Problem 1$

Educational worksheet: MTLE | Math Practice Test | Problem 1. Download and print for classroom or home learning activities.

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Show Answer Key & Explanations Step-by-step solution for: MTLE | Math Practice Test | Problem 1

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Let the number of blue marbles be $x$. Then the number of red marbles is $x + 1$.

The total number of marbles is 15, so:

$x + (x + 1) = 15$

$2x + 1 = 15$

$2x = 14$

$x = 7$

So there are 7 blue marbles and 8 red marbles.

The probability that a randomly taken marble is blue is:

$\frac{\text{number of blue marbles}}{\text{total marbles}} = \frac{7}{15}$

A. $\frac{7}{15}$

Parent Tip: Review the logic above to help your child master the concept of math practice tests.

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$MTLE | Math Practice Test | Problem 1$

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