Share Assessment Review #11
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Rewrite the expression as a sum of 2 unlike terms 3(2x-4) + 7
3(2x) -3(4) +7 = 6x -12 + 7= 6x-5
Solve for x: 2x + 5 = 19
2x+5-5= 19-5 2x =14 x = 7
Write 0.35 as a fraction in simplest form.
35/100 = 7/20
The ratio of boys to girls in a class is 5:7. If there are 15 boys in the class, how many girls are there?
5/7 = x/15 = 105x = 5 x= 21 girls
What is the sale price of an item originally $48 at 25% off?
$48x0.25 = 12 $48-12 =$36
What is the mean in the set of numbers: 12,15,18,21,24
(12+15+18+21+24)/5 = 18
What is the probability of rolling a number greater than 3 on a number cube and landing on a head when flipping a coin?
3/6 x 1/2 = 3/12 = 1/4 or 0.25
What is the percent of increase from 10 to 18?
change/original: 8/10=0.8=80%
If you invest $400 at a rate of 3.5% for 6 years, how much interest would you earn?
I=PRT=400(.035)(6)=$84
