Writing Equations And Inequalities Question Preview (ID: 50966)


7.10A The Student Can Write An Equation Or An Inequality To Represent Word Problems. This Also Includes A Review Of Basic Conceptual Understanding When Solving Equations.[print questions]

f
a) f
b) f
c) f
d) f

d
a) d
b) d
c) d
d) f

d
a) d
b) f
c) f
d) f

To solve 2x + 9 = 21, what is the first step?
a) divide each side by 2
b) divide each side by x
c) subtract 21 from each side
d) subtract 9 from each side

At the bookstore, Dean bought a magazine for $4, and five books that all cost the same amount. He spent a total of $129. Which equation expresses how much each book cost?
a) x = 129 - 4
b) 5x - 4 = 129
c) 5x + 4 = 129
d) 4x + 5 = 129

Mario had $150 to spend on 3 pairs of pants. After buying them, he had $30 left over. What equation expresses how much each pair of pants cost?
a) 30x/3 = 150
b) 3x - 30 = 150
c) 3x = 180
d) 3x + 30 = 150

d
a) f
b) s
c) d
d) f

d
a) d
b) f
c) s
d) f

A company spends $80 to buy supplies for making bracelets. The company charges $10 per bracelet Which inequality best represents x, the number of bracelets the company needs to sell to pay for costs and earn a profit of at least $200?
a) 10x + 80
b) $10x + 5 \geq 15$
c) d
d) f

What is the goal when solving a two-step equation?
a) $5x + 10\geq 20$
b) to move everything to one side of the equal sign
c) to make it a one-step equation
d) to isolate the variable

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