Rational Numbers
What is -9 + 18
9
What does the graph of a proportional relationship look like?
If you get 72/80 on a test, What is your percentage?
90%
4x = 24
x=6
A square has side lengths of 8 inches. What is the area and the perimeter?
Area = 64 sq in
Perimeter = 32 in
What is -10 - (-12)
2
What is the equation for a proportional relationship?
y=kx
What is 35% of 45?
15.75
Solve for x
45+ 3x = 90
x= 15
What is the volume of a prism with a length of 4in, width of 6in, and height of 7in?
168 cubic in
What is -9 x 12
-108
If you travel 175 miles in 5 hours, what is the constant of proportionality?
35mph
40 is 25% of what number?
160
5( x -9) = 40
x=17
What is the circumference of a circle with a radius of 4in? Use 3.14 for pi.
25.12 in
What is -36 divided by -6
6
What is the constant of proportionality in the equation y=5x
5
A baby weighed 7 pounds at birth and 15 pounds after 3 months. What is the percent increase? Round to nearest whole number.
114%
3(2x + 8) = 18
x = -1
What is the surface area of a cube with side lengths of 5ft?
150 sq ft
What is the decimal form of 7/8
0.875
Mike buys 3 apples for $2.00 and John buys 15 apples for $10.00. Is this a proportional relationship?
yes
A pair of shoes is on sale for 35% off. They are originally $70. What is the sales price?
$45.50
4x + 9(x -8)=
x=4
What is the area of a circle with a diameter of 6in? Use 3.14 for pi.
28.26 sq in