Equations and Solving
True or False: The equation x+7=15 is true when x=8
True
Expand this expression using the distributive Property: 4(x+5)
Evaluate 5^2
25
Write an expression for: "Seven less than a number n"
n-7
If you earned $10 per hour, write an equation for the total money m earned after h hours.
m=10h
Which value for y from the set {2,4,6} makes the equation 5y=30 a true statement?
6
Write an equivalent expression for: 6(3+8)
18+48
Write 3*3*3*3 using an exponent.
3^4
Evaluate 3x+5 when x=4
17
A table shows an input of packs (p):2,4,6 and an output of Cards (5): 12,24,36. What equation matches this relationship?
6p=c
Write an equation for this scenario: "Mr.Rivas bought 4 shirts that each cost the same amount. He paid $48 total". Use s for the cost of one shirt.
4s=48
Factor the following numerical expression by pulling out the greatest common factor: 14 + 21
7(2+3)
Evaluate the following expression: 12+10/2
17
A tape diagram shows 5 equal box labeled "y" summing to a total of 45. Write the equation.
5y=45
In the equation d=50t (distance equals 50 times time), which variables is the independent variables?
time (t)
Solve for K: 6k=72
k=12
A teacher splits 16 markers and 24 crayons evenly among 8 tables. Write a factored numerical expression to represent this distribution.
8(2+3)
Are 2^4 and 4^2 equivalent? Explain your answer.
Yes. 2*2*2*2=16 and 4*4=16
Write an expression for: "The product of 8 and a number K, increase by 12."
8k+12
A baker makes cakes at a constant rate of 4 cakes per hour. Fill in the missing distance for 3 hours on table tracking Time (t) and Cakes (c).
12
Writte and solve an equation for this scenario: "Samantha rode her bike total of 24 miles over two days. One Sunday, she rode 3 time as far as she did on Saturday. How many miles, M, did she ride on Saturday?"
3m=24
m=8miles.
Are the expressions 5(2x+4) and 10x+4 equivalent? Explain why or why not?
No. the 5 must be distributed to both terns, making the equivalent expression 10x+20
is 4*2^3 equivalent to 2^5? Explain your answer.
Yes. 2^3=8, and 4*8=32. 2^5=32.
Evaluate the expression (2a^2)+4 when a=3
22. Since 3^2=9, 2x9=18, 4+18=22
If you graph the relationship d=3t on a coordinate plane starting at (0,0), what are the coordinates for the point at 4 hours
(4,12)