Percents
45% as a decimal
0.45
Mean: 10, 12, 14, 16, 18
14
Rectangle: 12 × 5
60 units2
5 × 4 × 3
60 units3
Distance between (2,3) and (2,8)
5
What is 25% of 80?
20
Median: 3, 9, 5, 1, 7
5
Triangle: base 10, height 8
40 units2
2 × 3 × 6
36 units3
$10 off vs 10% off $60
$10 off
0.6 as a percent
60%
Mode: 2, 3, 3, 4, 5, 3
3
Parallelogram: base 9, height 6
54 units2
2.5 × 3 × 4
30 units3
Mean = 20 → what does it mean?
total ÷ number of values = 20
120 is 150% of what number?
80
Range: 4, 8, 15, 16, 23
19
A rectangle has a length of 10 cm and a width of 6 cm.
What is the area?
60 cm²
What formula is used for volume?
V=length × width × height
Create a ratio for 6 boys and 9 girls (simplify)
2:3
$50 item, 20% off — discount?
$10
What is a statistical question?
A statistical question is a question that only has one answer
ow do you find area of a complex shape?
Break it apart + add areas
What happens to volume if you double one side?
it doubles
A shape = rectangle (10×5) + triangle (b=10, h=4)
Find total area
50 + 20 = 70