Mid-Topic (2) Retake (Savvas)

How can you tell when an equation with one variable has infinitely many solutions or no solution? Check all that apply

• An equation has infinitely many solutions when both sides of the equation are identical or always equal

• An equation has infinitely many solutions when both sides of the equation balance out

• An equation has no solution when you simplify and both sides of the equation are never equal to one another

• An equation has no solution when you’re left with the variable on one side of the equal sign and a number on the other

Tags

CCSS.8.EE.C.7A

 $-\frac{5}{6}e\ -\frac{2}{3}e\ =-24$  

Tags

CCSS.7.EE.B.4A

Jacklyn has $120 saved and earns $40 allowance each month. Pedro has $180 saved and earns $20 a month in allowance. If they both save their entire allowances, how long will it take for Jacklyn and Pedro to have saved the same amount of money?

Tags

CCSS.8.EE.C.8C

Which equation has infinitely many solutions?

• 4x - 2x = 20

• 12 + 4x = 6x + 10 - 2x

• 5x + 14 - 4x = 23 + x - 9

• x + 9 - 0.8x = 5.2x + 17 - 8

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CCSS.8.EE.C.7A

Solve the equation -24 + 12d = 2(d - 3) + 22

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CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Hilda adds 5 to a number, then multiplies the sum by -2. The result is 6. Write an equation to find the number, x.

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CCSS.HSA.CED.A.3

Solve the equation -2(x + 5) = 6

Tags

CCSS.7.EE.B.4A

Hector is competing in a 42-mile bicycle race. He has already completed 18 miles of the race and is traveling at a constant speed of 12 miles per hour when Wanda starts the race. Wanda is traveling at a constant speed of 16 miles per hour. Write and solve an equation to find when Wanda will catch up to Hector

• 16x + 10 = 18x - 12

• 16x = 12x + 18

• 16x + 42 = 18x + 12

• 42 = 16x +12x -18

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CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve the equation 16x = 12x + 18

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CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

Solve the equation -2.6b + 4 = 0.9b -17

Round to the nearest tenth

Tags

CCSS.6.EE.A.2

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7