Writing equations (linear and systems)

For every one A Dede gets on her homework, her parents give her $3. Which equation matches this scenario? Use m for money she makes, and A for the number of A's she gets on her homework.

• m= 3 + A
• m= 3A
• m= A + 3
• none of the these

Tags

CCSS.6.EE.C.9

A cell phone company charges $3.00 to make a phone call plus $0.15 for each minute for each minute you talk. Which equation would you use to determine the total cost, c, of a phone call that is m number of minutes long?

• c = 3.00 - 0.15m
• c = 0.15 + 3.00m
• 3.00 = c + 0.15
• c = 3.00 + 0.15m

Tags

CCSS.6.EE.C.9

A plumber charges customers $37 for each hour worked, plus an additional $20 for travel. If w represents the number of hours worked, which expression will calculate the plumber's total charge?

• 37 + 20 + w

• 37w - 20

• 37 + 20w

• 37w + 20

Tags

CCSS.HSA-SSE.A.1A

A plumber charges customers $37 for each hour worked, plus an additional $20 for travel. If w represents the number of hours worked, which expression will calculate the plumber's total charge?

• 37 + 20 + w

• 37w - 20

• 37 + 20w

• 37w + 20

Harris Publications is having some books printed. The printer charges $800 plus $5 per book. What equation could help me find how many books can be printed for $4,000?

• 800 + 5x = 4000

• 800x + 5 = 4000

• 4000 + 5x= 800

• 800 + 5 = 4000

• 4000 = 800 + 5

Tags

CCSS.HSA.CED.A.3

Scott works on cars. He charges $35 for each car plus $7 per hour. Write an equation that represents this scenario if Kylie's car bill was $63.

• 7x + 35 = 63

• 7x = 63

• 7x + 63 = 35

• 35x + 7 = 63

Tags

CCSS.HSA.CED.A.3

Samuel bought 3 tires for $79.95 each and some rims for $59 each. He spent a total of $534.85. Which equation could be used to find the number of rims, r, Samuel bought?

• 3(79.95) - 59r = 534.85
• 79.95r - 59(3) = 534.85
• 3(79.95) + 59r = 534.85
• 79.95r + 59(3) = 534.85

Tags

CCSS.HSA.CED.A.1

CCSS.HSA.CED.A.2

The perimeter of a rectangle is 1,409 feet.  The height is 214 feet.  Which equation could be used to find the width?

• w + 214 + 214 = 1,409
• 2w + 214 = 1,409
• w + w + 214 + 214 = 1,409
• w + 214 = 1,409

Tags

CCSS.HSA.CED.A.3

Twice a number plus 6 times the number is -72

• 2 + 6x =- 72
• 2x + 6x = -72
• 2 + 6 = x
• 2y x 6y = 72

Tags

CCSS.8.EE.C.7B

The space club is having some posters printed. The printer charges $250 plus $2 per poster. How can I figure out how many posters I could print for $1,000?

• 250x + 2 = 1000
• 1000 + 2x = 250
• 250 - 2x = 1000
• 2x + 250 = 1000

Tags

CCSS.7.EE.B.4A