Just an Expression
(-2)2 - 32
-5
Solve:
-3x + 5 = -7
x=4
50 is 32% of what total?
156.25
Solve for x, then graph:
3 - x < 8
x > 46
The senior class is planning a trip that will cost $35 per student. If $3920 has been collected so far, how many seniors have paid for the trip?
112 seniors
Simplify:
8 - 10(x - 7) - 2
-10x + 76
Solve:
2/5*x = 6
x=15
What percent of 38 is 28? (Round to the nearest percent.)
74%
DD! Solve for x:
|x - 4| < 15
-11 < x < 19
Write an inequality to represent the situation:
Guests must be a minimum of 46 inches to ride the Indiana Jones ride at Disney in California.
h > 46
DD! What is the perimeter of a square that has a side length of:
3x + 5
12x + 20
DD! What operations, in order, solve the equation?
8 + (x-3)/5 = 12
1st: -8
2nd: *5
3rd: +3
DD! Determine the percent change of a town where the population changed from 37,800 to 44,982?
Increase of 19%
DD! Solve for x:
x-9 < 2
x 5
x<15
DD! A bad clock falls 5 minutes behind every day. How much time will it lose in 2 hours?
25 seconds
Evaluate, where x=-3 and y=5
xy + x2 - 2y
-16
DD! Solve:
2x - 3(x - 5) = 15 - x
x can be all real numbers
Using simple interest, solve for the time that $500 takes to double with an 8% interest rate.
12.5 years
Solve:
-3(x - 5) + 9 - (x - 12) < 18 - 26
x>11
The label on a bottle of orange juice says "now 25% more." The bottle's label reads 80 fluid ounces. What was the original volume?
64 fl. oz.
DD! Simplify, where m=-2:
-2m6 รท 4m3
4
Transpose the equation for x:
y = m(x - a) + c
x = (y - c)/m + a
Yutong is saving for retirement, and puts away $20,000. The account has a 2.5% compound annual interest rate. How much interest does the account earn after 25 years?
$17,078.88 in interest only
Solve:
|7 - 2x| + 3 > 14
x<-2 or x>9
DD! Four times a number is two less than six times the same number minus ten. What is the number?
Six