Not 7th Grade Math
Find the value of x
0 = −18x + 18
x = 1
Combine like terms
3x3 − 18x3
-15x3
simplify the expression
(5x)3
15x
evaluate the expression
|x| − |y| at x = −5 and y = 4
1
DAILY DOUBLE!!
Find the value of x
8x−8−9x=−3
x = -5
simplify the expression
−(−2x+10y−6)
2x−10y+6
simplify the expression
4(−6x + 7)
−24x + 28
translate the phrase into a mathematical expression
“13 less than 5 times the number p ”
5p - 13
Find the value of x
−6x+8=−2x
x = 2
Evaluate the expression
−5x2+2y2 x=4 and y=2
-72
Evaluate the expression
(6x−10)/(5 + x) x=−6
46
The formula d = 16t2 gives the distance (in feet) that an object falls from rest in terms of the time t that has elapsed since its release. Find the distance d (in feet) that an object falls in t = 4 seconds.
256 feet
Find the value of x
−7x + 6(x + 8) = −2
x = 50
The width W of a rectangle is 8 feet shorter than its length L. Find the perimeter of the rectangle in terms of its length alone.
4L − 16
DAILY DOUBLE!! A ball is thrown vertically upward. Its velocity t seconds after its release is given by the formula v = v0 − gt, where v0 is its initial velocity, g is the acceleration due to gravity, and v is the velocity of the ball at time t. The acceleration due to gravity is g = 32 feet per second per second. If the initial velocity of the ball is v0 = 272 feet per second, find the speed of the ball after t = 6 seconds.
80 feet per second
The width and length of a rectangle are consecutive even integers. If the perimeter of the rectangle is 92 inches, find the width and length of the rectangle.
22 in., 24 in.
A large children’s organization purchases tickets to the circus. The organization has a strict rule that every 2 children must be accompanied by one adult guardian. Hence, the organization orders 2 times as many child tickets as it does adult tickets. Child tickets are $4 and adult tickets are $10. If the total cost of tickets is $216, how many adult tickets were purchased?
12 child tickets
Find the value of x
−7(9x−6) = 7(5x+7) − 7
x = 0
Simplify
7(10x2 − 8xy2) − 7(9xy2 + 9x2)
7x2 − 119xy2
Simplify
−4(9x2y+8)+6(10x2y−6)
24x2y − 68