Equations and Expressions
Solve for y
3y +5 = 20
y = 5
-19 - 4 =
-23
252
625
What is 10% of 100?
10
Draw a timeline from -15 till positive 15
(teacher will check this answer)
simplify the expression
3(2x +5) +2
6x + 17
71 + (-18)
53
33*32
35
= 243
45 is what percentage of 90?
50%
Write 250,000 in scientific notation
2.5 * 105
Add the Expression
(2x + 5) + (x+4)
3x +9
(16-21 +34) / (-8)
4.875
If a circle has a diameter of 15 cm, find the perimeter. Use 3.14 for pi.
2*pi*r = circumference of a circle (perimeter)
answer = 47.1cm
The probability of pulling a red marble out of a bag of colored marbles is 3:7. If you were to pull colored marbles out of the bag (one at a time, and putting the marble back each time) for 500 tries, about how many times would you select a red marble?
About 214
Write 6.41 * 10-7 in standard form
0.000000641
Subtract the Expression
(8y-7)-(y-4)
7y-3
Solve for s
8/6 = s/27
If a circle has a radius of 26 m, what is the area of the circle. Use 3.14 for pi.
pi*r2 = Area of a circle
answer= 2,122.64
A chef uses 4 3/4 cups of broth for 10 servings of soup. How much broth is used in one serving of soup?
0.475 cups of broth per serving
Write out 2 ordered pairs that we could plot on a graph from the equation y = 3x.
(0, 0)
(1, 3)
(2, 6)
etc.
Simplify the expression
7(x+5y) + 3(x+5y) + 5 (3x +8y)
25x + 90y
Solve for c
144/6 = 6c/6
c = 24
A 16-foot ladder leans against the side of a building. The top of the ladder touches the side of the building at 12 feet above the ground. How far away from the base of the building is the bottom of the ladder.
a2 + b2 = c2
about 10.6
Pick'n Save sells 5 bottles of water for $2.00. How many bottles of water can a customer buy with $12.00?
30 bottles
-21x + (-2x)
-23x