Define Variables

Define variable

• a letter in the alphabet

• a letter or symbol standing for an unknown value

• a letter to grandma

• a letter to Santa

Define the variables, set up a system of equations and solve using the substitution method.

• 2 Buses & 3 Vans

• 3 Buses & 2 Vans

• 4 Buses & 2 Vans

• 2 Buses & 4 Vans

Define the variables, set up a system of equations and solve using the substitution method.

• 4 cm by 13 cm

• 6 cm by 11 cm

• 9 cm by 5 cm

• 8 cm by 7 cm

Define the variables, set up a system of equations and solve using the substitution method.

• 6 dimes & 11 quarters

• 5 dimes & 13 quarters

• 8 dimes & 4 quarters

• 7 dimes & 12 quarters

What is the definition of a variable?

• The letter used to represent a quantity

• The little number or letter used to raise to a power

• The number in front of a variable

• The number with no variable

Define the variables, set up a system of equations and solve using the substitution method.

• corn: 146 acres; tomatoes: 123 acres; sunflowers: 61 acres

• corn: 152 acres; tomatoes: 112 acres; sunflowers: 56 acres

• corn: 117 acres; tomatoes: 98 acres; sunflowers: 42 acres

• corn: 134 acres; tomatoes: 114 acres; sunflowers: 84 acres

A variable is . . .

• an awesome number

• a number represented by a letter

• an infinite number

• a number multiplied by another number

Which of the following answer choices is NOT an example of a variable?

• 8

• x

• u

• n

The length of a rectangle is twice the width. Define the variables in terms of 'x'

• length= x, width = 2x

• length= 2x, width = x

• length= x, width = ¹/₂ x

• none of the above

The second of two numbers if 4 times the first. Define the variables in terms of 'x'

• first= x, second = 4x

• first= 4x, second = x

• first= ¹/2 x, second = 2x