Equations Review

Which of the following is an equation?

• $8x$

• $8x=2$

• $8x-5$

• 8 divided by x

Tags

CCSS.7.EE.A.2

CCSS.HSA.SSE.A.2

Which of these is NOT an expression?

• $3\left(3^2+2\right)=3\times4+3\times2$

• three fourths of the product of w and 10

• 1/7 times the sum of y + 2

• $20-\frac{1}{2}$

Tags

CCSS.6.EE.A.2B

Nathan has a comic book collection containing w comic books. His friend Susan will buy 42 comic books from Nathan for $0.75 per comic book. After the purchase, Nathan will have 1,752 comic books. Which equation can Nathan use to find the number of comic books he originally had in his collection?

• $42=1752-w$

• $152=w-\left(0.75\right)\left(42\right)$

• $42=w-1752$

• $1752=w+42$

Tags

CCSS.HSA.CED.A.3

Each gallon of gas costs $3.50. Sheridan spent $42.00 on gas. Which value of x represents the number of gallons of gas that Sheridan has purchased?

• $x=45.5$

• $x=12$

• $x=0.083$

• $x=147$

Tags

CCSS.6.EE.B.7

Which equation is true when y = 4?

• $-8y=-32$

• $6y=-24$

• $-3y=-15$

• $-9+y=-13$

Tags

CCSS.6.EE.B.5

Mrs. Juarez has 3.5 pounds of apples. Her apple canning recipe calls for 7.5 pounds of apples. The equation 3.5 + p = 7.5 can be used to determine the number of pounds of apples, p, that Mrs. Juarez needs to use the full recipe without any changes to the recipe. Which number line best represents the solution to the equation?

• 
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• 
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Tags

CCSS.6.EE.B.7

Solve the equation.

 $14x=98$  

Tags

CCSS.6.EE.B.7

An equation is shown below. Which situation best represents the equation?

 $45+x=180$  

• Angela saves $45 each month. How many months, x, will it take her to save $180?

• Alan read 180 pages of a book. If he reads 45 more pages, how many pages, x, will he have read?

• Rebecca worked 45 minutes on Wednesday and 180 minutes on Thursday. How many minutes, x, did she work in the two nights?

• Marcus has 45 songs on his music player. How many more songs, x, must he download to have a total of 180 songs?

Tags

CCSS.HSA.CED.A.3

Jeremy spent a total of $79.16 on a shirt and one pair of jeans. He knows the jeans cost $49.95 but he does not know the cost of the shirt, s. He crated the model shown to find the cost of the shirt. What is the cost of the shirt?

• $29.21

• $30.81

• $129.11

• $1.58

Tags

CCSS.6.EE.B.7

Mary saves $25 per week. She has saved a total of $600. Which equation can be used to find how many weeks Mary has been saving? Let w equal the number of weeks Mary has been saving.

• $25+w=600$

• $w\div25=600$

• $600-w=25$

• $25x=600$

Tags

CCSS.HSA.CED.A.3