Percentages
Write this number as a fraction and as a percentage:
0.07
7/100
7%
a-51=12
a=63
find the area of a right triangle with a base of 9in and a height of 7in
A=(BxH)/2
31.5in2
Find the median:
Number of apps on five friends’ smart phones: 42, 42, 23, 75, 64
23, 42, 42, 64, 75
Median=42
Simplify 2/4
1/2
Write this as a fraction and a decimal:
171%
1 71/100
1.71
Only 12 students can be in the next school play. The number of students who tried out but did not get a role is 42.
Write and solve an equation to determine how many students tried out.
x-12=42
x=54
if the area of a right triangle is 24in2 and the base is 2in what is the height of the triangle
A=(BxH)/2
24in
Find the mean:
Number of pets in six families:
3, 0, 2, 4, 2, 1
2
1/6=x/24
x=4
Kelly saved $150. That is 50% of the money she
earned this summer. How much did Kelly earn this summer?
$300
16d=2864
d=179
what is the volume of a rectangular prism with a length of 8ft a width of 8ft and a height of 3ft
V=LxWxH
192ft3
Ted's scooters cost the following:
$125 $135 $130 $140 $135 $154 $135 $130
What are the mean, median, and mode prices?
Mean: $135.5
Median: $135
Mode: $135
26/16
1 5/8
When students were asked to name their favorite type of music, 3 out of every 5 students chose rock music. What percent of the students chose another type of music?
40%
Colin is a math tutor. He charges the same amount, s, for every tutoring session. After 21 sessions he has earned $1,575. How much does Colin charge for one tutoring session?
Write and solve the equation
21s=1575
s=$75
find the volume of the rectangular prism
L=9cm W=3cm H=8cm
V=LxWxH
216cm3
Ted's Scooters cost:
$125 $135 $130 $140 $135 $154 $135 $130
Which measure of center would be most helpful to summarize this data?
Mean/Average
Are 1/3 and 5/15 equivalent?
Yes
Melanie’s bedroom walls are 45% painted. The area of her walls totals 420 square feet. How many square feet of Melanie’s walls still need to be painted?
202.5 ft^2
t ÷ 5.4 = 9.01
t=48.654
find the volume of a rectangular prism with a base area of 54in2 and a height of 6in
V=LxWxH
324in3
Still with Ted's Scooters
$125 $135 $130 $140 $135 $154 $135 $130
If Ted started to sell a scooter that cost only $100, how would that change the average cost?
Lower it from $135.5 to $131.56
Are 2/9 and 18/4 equivalent?
No