Scientific Notation
(8^-6)^9(32^-3)^-8
1/2^42
Kaitlyn drew 6 hearts and 10 circles. What is the ratio of circles to hearts?
5:3
6/3=x/2
4
-10 10/12 - (-6 2/4)
-4 1/3
-21+(-x)=31
-52
(6.2x10^125)(9.8x10^326)
6.076x10^452
A herd of 47 horses has 28 white and some black horses. What is the ratio of black horses to all horses?
19:47
3/10=7/b
23.33
-2 8/12 -11 2/3
-14 1/3
-8-(-x)=-10
-2
(3.92x10^48)/(7x10^-65)
5.6x10^112
6 lbs of tomatoes cost $27. Find the rate per lbs.
4.5 dollar per lbs
A boat can travel 4 miles on 3 gallons of gasoline. How much gasoline will it need to go 7 miles?
5.25 gasoline
-5 1/9 + 7 1/3
2 2/9
-2x-(-12)=-13
12.5
(4.5x10^25)+(5.26x10^27)
5.305x10^27
A boat travels 4 miles in 2.5 hours. Find the rate per hour
1.6 miles per hour
3 lbs of tomatoes cost $34. How many lbs of tomatoes can you get with $144 ?
12.71 lbs
-2 6/8 (3 2/3)
-10 1/12
16 = -x/12-5
-252
(2.23x10^-16)-(9.82x10^-17)
1.248x10^-16
Which is the best buy?
1) 6 shirts for $25.50
2) 4 shirts for $18.00
3) 5 shirts for $21
3
A boat travels 1.2 miles in 0.6 hours (with a constant speed). How much time will it take traveling 7miles?
3.5 hours
(-1 1/8)/(3 3/4)
-3/10
64 = (-7/9)x+5
-75.86