Solve Equation in Context

At one store a trophy costs $12.50. Engraving costs $0.40 per letter. At another store, the same trophy consts $14.75. Engraving costs $0.25 per letter. Write an equation for how many letters the costs will be the same.

• 12.50 + 0.40 = 14.75 + 0.25

• 12.50x + 0.40 = 14.75x + 0.25

• 12.50 + 0.40x = 14.75 + 0.25x

• 0.40x - 12.50 = 0.25x - 14.75

At one store a trophy costs $12.50. Engraving costs $0.40 per letter. At another store, the same trophy consts $14.75. Engraving costs $0.25 per letter. Write an equation for how many letters the costs will be the same.

• -15

• 181

• 15

• 42

Solve 12 - 6y = 24

• -4

• -2

• -3

• -1

Tags

CCSS.7.EE.B.4A

Solve 7(1 - y) = -3(y - 2)

• x = 1/4

• x = 4

• x = -4

• x = 5

Solve 4 - 2(x - 3) = 24

• -14

• 14

• -7

• 7

Tags

CCSS.7.EE.B.4A

• true

• false

Tags

CCSS.HSA.REI.A.1

• -29

• -34

• 29

• 34

Tags

CCSS.7.EE.B.4A

Twelve decreased by twice a number is -7. Write the equation.

• 2x - 12 = -7

• 12 - 2x = -7

• 2x - 7 = 12

• 12 + 2x = -7

UPS charges $7 for the first pound, and $0.20 for each additional pound. FedEx charges $5 for the first pound and $0.30 for each additional pound. Write the equation and solve.

• 7x + 0.20 = 5x + 0.30; .5

• 7 + 0.20x = 5 + 0.30x; 5

• 7 + 0.30x = 5 + 0.20x; 20

• 7 + 0.20x = 5 + 0.30x; 20

4(2x + 3) = -3(x - 1) + 31

• 2.8

• 1.45

• 2

• 5