Vocabulary
(7.NS, 7.RP, 7.EE)
(7.NS, 7.RP, 7.EE)
Name the Term
The distant a number is from 0 on the number line
|2|=2 |-3|=3
absolute value
These are the rules for adding a positive number and a negative number.
subtract the numbers and take the sign of the larger number
This is a fraction that does not repeat
terminating
Expressions that have the same value for every possible value of the variable.
equivalent expression
Convert 5/10 to a decimal.
.5 or .50
Name the Term
Allows you to distribute a factor over the terms in a sum without changing the overall value
Example: 2(3+7) = 2*3 + 2*7
distributive property
These are rational numbers.
whole numbers, integers, decimals, and fractions
Sadie drives 80 miles per hour. How long does it take her to drive 20 miles?
15 min
True or False:
6 < 10
true
True or False
y=2x+4 is a proportional relationship.
False
Name the Term
Terms in an expression that have the same variable raised to the same power; constants are like terms
x and -4x
1 and 1.5
x2 and 8x2
like terms
Convert 4/13 to a decimal. Round to the nearest hundredths place.
0.31
For a graph to represent a proportional relationship, the straight line must pass through this point.
the origin (0,0)
Choose the expressions that are equivalent to 3(x + 2).
Select all that apply.
a). 3x+2
b). 3(2 + x)
c). 3x + 2x
d). x+ 2x+ 2+ 4
e). x + x + x+ 1 + 1 + 1 + 1 + 1 + 1
B, D, and E
Solve for x.
2/5(x) - 1 = 9.
x=25
Name the Term
The unit rate in a proportional relationship
constant of proportionality
Convert 0.45 to a fraction. Simplify.
9/20
Jose burns an average of 200 calories in 25 minutes of running.
How many calories does Jose burn per minute?
8 calories per minute
A hand-woven rectangular rug measures x feet long and 2 4/5 feet wide. Write an expression to represent the perimeter of the rug.
perimeter= 2(length + 2 4/5)
Solve the two-step inequality.
36 + 3p < 60.
p < 8
Name the Term
A percent of an amount borrowed (or invested) that is paid to the lender (or investor) in addition to the original amount.
simple interest
Jeremiah is taking a quiz on a computer. The computer says her score is 0.625. Identify the fractions that are equivalent to 0.625.
Choose all that apply.
a). 15/24
b). 19/32
c). 11/16
d). 5/8
a). 15/24 and d). 5/8
Consider the equation 1/4y = 1.5x
Solve the equation for y. What is the constant of proportionality?
y=6x;6
Kamiyah wants to join a fitness club. The fitness club charges an initial membership fee of $55 and a monthly fee of $19.50. She has $250 to spend on a membership at the fitness club. Write and solve an equation to >FIND THE NUMBER OF MONTHS< Kamiya can be a member of the fitness club.
10 months
Substitute the number 2 into each expression.
3x + 4(2x + 5)
6x + 5x + 5
True or False:
The equations are NOT equivalent.
42 and 27 and True