Evaluating Expressions Word Problems

The expression 5/9(F - 32) shows how to convert from degrees Fahrenheit to degrees Celsius, where F represents the temperature in degrees Fahrenheit. What is the temperature in degrees Celsius when the temperature is 77F?

• 45

• 9

• 25

• 225

6x2 -5y for x= 3 and y= 2

• 44

• 54

• 10

• 6

The expression 1.8 c + 32 shows how to convert from degrees Celsius to degrees Fahrenheit, where c represents the temperature in degrees Celsius. What is the temperature in degrees Fahrenheit when the temperature is 35 degrees C?

• 63

• 95

• 60

• 28

The expression 5/9 (F-32) shows how to convert from degrees Fahrenheit to degrees Celsius, where F represents the temperature in degrees Fahrenheit. What is the temperature in degrees Celsius when the temperature is 86 degrees F?

• 54

• 270

• 6

• 30

Sheryl earns money for college by walking dogs and by mowing lawns. She earns $3  for each dog she walks and $25 for each lawn she mows. Which expression can be used to determine the amount of money, in dollars, Sheryl earns from walking w dogs and mowing m lawns?

• 3w + 25m

• 28(m + w)

• 3w + 25

• 75(w + m)

Write an expression for: the sum of a number and 9

• n - 9

• n * 9

• n + 9

• n/9

Sarah has $40 in her lunch account and pays $2 each day to eat lunch.
Which expression below could be used to represent the total amount of money in Sarah's account after x days?

• 40 + 2x

• 40 - 2x

• 2 + 40x

• 2 - 40x

An ice cream shop charges $3.39 for a dish of ice cream. A customer can also order toppings for $0.59 each. If x represents the number of toppings, which expression can be used to determine the total charge, in dollars, for a dish of ice cream with x toppings?

• 339x + 0.59

• 3.98 + x

• 3.39 + 0.59x

• 3.98x

There were x cookies at the beginning of a party. By the end of the party, 16 of them had been eaten. Using x, write an expression for the number of cookies that were left.

• 16

• x + 16

• 16 - x

• x - 16

Students brought in 300 canned goods for the food drive on Monday. On Tuesday students brought in x more than the day before. Write an expression for how many canned goods students brought on Tuesday.

• 300 + x

• 300 - x

• 300x

• x - 300