Equiv.Expressions
Make one equivalent expression to:
(8+c) + ( 8+c) + (8+c) + (8+c) + (8+c)
4(8+c)
or
32 + 4c
Michael bought 3 t-shirts. The total cost was $21. How much was each t-shirt?
$7 each
2m + 3 + 7 + 7m =
9m + 10
-4 x -8 =
32
(-9) + (-14) =
(-23)
Distribute:
2(x + 7)
2x + 14
Michael swam 5 feet below sea level then decreased another 2 feet. How far below sea level is he now?
-7 feet below sea level
4(3m - 7) =
12m - 28
2/10 ÷ 0.9 =
20/90 or 2/9
8 - 12 + (-9)
(-13)
Distribute:
-(5 - b)
-5 + b
Harriet bought 3.41 pounds of noodles and 3.07 pounds of rice. How much more pounds of noodles are there than rice?
0.34 pounds of rice
-8.4x + 7.1 - 9.1x =
-17.5x + 7.1
-8(4 ÷ -2) =
16
108 - 294 =
-186
Distribute and Combine:
-(-9x + 2y) + 3x
12x - 2y
The class earns 3 points when they flip heads and (-2) points when they flip tails. If the class landed on heads 6 times and tails 7 times, what's their score?
-2(-7 - 9m) - 6m
-14 +18m - 6m
-14 +12m
-(2/5 ÷ -0.30) = SIMPLIFY
-3/25
6 + (-3) + (-1/2) =
2.5
Distribute and Combine:
2m - 5 - 5(m - 2)
-3m -5
Or
-5 - 3m
Mr. Cutting had a credit card balance of $-105.05. He made a withdrawal of $50 and deposited $20 into the account. What's his new balance?
$-135.05
-1/2x - (-2 + 1/6x) =
-1/2x + 2 - 1/6x
-1/2x - 1/6x + 2
-1/2x + (-1/6x) + 2
-3/6x + (-1/6x) + 2
-4/6x + 2
If p and q are positive integers, is the following statement true or false?:
-(-p x q) = a positive number?
True:
-(-2 x 5)
-(-10)
10
If p is a positive number and q is a negative number larger than p, which statement is false?
1. P + q = a negative number
2. Q - P = a negative number
3. P - q = a negative number
Statement 3