7.EE.3 Review

What is the formula for finding the total cost of a taxi ride based on distance?

• Total cost = base fare + (cost per mile * number of miles)

• Total cost = (base fare * number of miles) + cost per mile

• Total cost = base fare - (cost per mile / number of miles)

• Total cost = base fare + (cost per mile / number of miles)

What is the purpose of using parentheses in mathematical expressions?

• To indicate which operations should be performed first according to the order of operations.

• To group numbers for addition only.

• To separate different variables in an equation.

• To indicate the final result of a calculation.

How do you find the average number of students per bus if there are 196 students in total?

• Divide the total number of students by the number of buses: 196 / 4 = 49.

• Multiply the total number of students by the number of buses: 196 * 4 = 784.

• Add the total number of students to the number of buses: 196 + 4 = 200.

• Subtract the number of buses from the total number of students: 196 - 4 = 192.

What is the total number of students if 7 students rode in cars and the rest filled four buses, with a total of 203 students?

• 196 students

• 203 students

• 49 students per bus

• 7 students

Explain the concept of 'like terms' in algebra.

• Terms that have different variables and cannot be combined.

• Terms that have the same variable raised to the same power, which can be combined.

• Terms that are always positive and can be added together.

• Terms that are only found in polynomial equations.

What does it mean to simplify an expression?

• To reduce it to its simplest form by combining like terms and eliminating parentheses.

• To make the expression longer and more complex.

• To change the expression into a different variable form.

• To evaluate the expression to find its numerical value.

Simplify the expression: (m + 11) + (n + 44)

• m + n + 44

• m + n + 11

• m + n + 55

• m + n + 33

Calculate the value of 3a + 5b if a = 4 and b = 6.

• 30

• 36

• 42

• 48

What is the significance of the base fare in a taxi ride?

• It is the initial charge for getting into the taxi, regardless of the distance traveled.

• It is the charge applied for each mile traveled during the ride.

• It is a fee that only applies during peak hours.

• It is a surcharge for using a credit card to pay for the ride.

What is the distributive property in algebra?

• a(b + c) = ab + ac; it allows you to multiply a single term by two or more terms inside parentheses.

• a(b + c) = ab + ac; it allows you to add a single term to two or more terms inside parentheses.

• a(b + c) = a(b) + a(c); it allows you to divide a single term by two or more terms inside parentheses.

• a(b + c) = a + b + c; it allows you to simplify expressions by removing parentheses.