Math Core

This test covers solutions of equations, one-step equations, writing and graphing inequalities, and independent and dependent variables.

Question 1

Is $5$ a solution of $3x + 4 = 19$ ?

Question 2

Which number from the set $\{4, 6, 8, 10\}$ is a solution of $\dfrac{30}{n} = 5$ ?

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 3

Solve $n + 23 = 50$ for $n$ .

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 4

Solve $7y = 91$ for $y$ .

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 5

Solve $b - 2.4 = 5.8$ for $b$ .

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 6

Solve $\dfrac{x}{5} = 3.2$ for $x$ .

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 7

Solve $\dfrac{4}{5}a = 20$ for $a$ .

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 8

Five friends split the cost of a meal equally. Each friend pays $9.40. Write and solve an equation to find the total cost of the meal in dollars.

Enter a number. Fractions like 3/4 and sqrt(2) are OK.

Question 9

Coach says to practice at least 30 minutes each day. Write an inequality for the number of minutes $m$ .

Enter an inequality, e.g. x >= 4, -2 < x <= 3, or x < 1 or x > 5

Question 10

Write the inequality shown by the graph. Use $x$ as the variable.

Enter an inequality, e.g. x >= 4, -2 < x <= 3, or x < 1 or x > 5

Question 11

Which number is not a solution of $x \ge -2$ ?

Question 12

A class sells tickets to a play. What is the dependent variable?

Question 13

The table shows how $y$ depends on $x$ . Write an expression for $y$ in terms of $x$ .

$x$	1	2	3	4
$y$	8	16	24	32

Enter an expression, e.g. 3x^2 - 2x + 1

Question 14

The graph shows pairs $(x, y)$ that follow one rule. What is $y$ when $x = 10$ ?

(0, 0)(2, 6)(4, 12)(6, 18)Open in grapher →

Enter a number. Fractions like 3/4 and sqrt(2) are OK.