Scientific Notation
Convert to standard notation:
4.71 x 10-4
0.000471
142
196
3m - 7 = 23
m = 10
Evaluate if m = 8 and n = 4, and p = 2
(3m -n)/(p^2)
5
Alison charges $5.50 per dog to wash on Friday and $8.00 per a dog to wash on Saturday. If she washes 5 dogs on Friday and 8 dogs on Saturday, how much money will she make?
$91.50
Convert to standard notation:
8.9 x 107
89,000,000
DOUBLE JEOPARDY!
Square root of 121.
11
r/4+12=8
r = -16
Evaluate if x = 4 and y = -9
8x - 5y
77
Brianna works as a customer service representative. She knows that the amount of her yearly bonus is $155, but $2.50 is taken away for each customer complaint about her during the year. What is her bonus if there are 12 complaints about her in the year?
$125.00
Convert to scientific notation:
0.0000042
4.2 x 10-6
Square root of 361
19
(m-2)/4 = 11
m = 46
Evaluate if a = -5 and b = 2
a2 - b4
9
The temperature on Tuesday was -130F at 5:00 a.m. It then rose 18 degrees by 8:00 p.m. By 5:00 Wednesday morning, the temperature had dropped 29 degrees. What was the temperature on Wednesday morning?
-24 degrees
Convert to scientific notation:
400,000,000
4 x 108
Which ones are not perfect squares?
4, 8, 9, 36, 50, 64
8 and 50
3/4x - 4 = 20
x = 32
Evaluate if m = -3 and n = -1
(20mn)/(3m + n)
-6
A farmer sells an average of 15 3/5 bushels of corn each day. What integer represents his total sales after 5 days?
78 bushes of cord
Order from least to greatest:
4.2 x 102, 7.1 x 107, 4.2 x 10-7, 6.32 x 107
4.2 x 10-7 , 4.2 x 102, 6.32 x 107 , 7.1 x 107
List all that are not perfect squares:
1, 4, 9, 14, 25, 35, 49, 64, 100, 120, 144
14, 35, 120
12 - x = 4
x = 8
Evaluate if a = -5 and b = 2
7a + 4b3 +12
9
Gary needs to save at least $500 to be able to afford his plane trip to grandma's house for Thanksgiving. If he already has $150 saved up and gets paid $35 per day at his after school job, what is the least number of days he has to work? Write and solve the inequality.
35x + 150 ≥ 500
x ≥ 10