Writing Equations Models, Words, System of Equations 2023

What is the equation of this model?

• 3x + 9 = 4x + 5

• 2x + 9 = 3x + 5

• 3x + 9 = 3x +4

• x3 9 = 4x 5

What is the equation of this model?

• 3x - 7 = 2x + 5

• 3x + 7 = 2x - 5

• 3x - 7 = 7x + 2

• 3 - 7 = 2 + 5

Nsolve this equations

• 2.5

• 7.2

• -2.5

• 7x = 8x-7.2

Jason's Deli Sandwiches is more than the cost of ordering from subway?

• Jason< Subway

• Jason> Subway

• Jason= Subway

nsolve
-2.5x + 10 = 4.5x - 4

Mathematical Equivalence

ON

• Pays a flat rate of $29.50 plus an additional $2.75 per hour.

• Which # gets the x?

• 29.50x

• 2.75x

• 32.25x

• Pays a flat rate of $250 plus an additional $75 per hour.

• Which # gets the x?

• 250x

• 75x

• 325x

• A job pays a flat rate of $19.99 plus an additional $2.80 per hour.

• 2.80x + 19.99

• 19.99x + 2.80

• 22.79x

Tank A has 50 gallons of water and will increase at a constant rate of 5 gallons per hour. 

• 50 + 5x

• 50x + 5

• 50 - 5x

• 55x

Tank A has 250 gallons of water and will decrease at a constant rate of 3 gallons per hour. 

• 250x - 3

• 250 - 3x

• 250 + 3x

• 250x + 3