Answer:
1) 315/15 = 21 peanuts per minute
2) 81/9 = 9 texts per minute
3) 56/2 = 28 pages per hour
4) Best Buy: 16 oz for $1.44
0.9/6 = $0.15 per oz
1.1/10 = $0.11 per oz
1.44/16 = $0.09 per oz
Least per ounce cost is $0.09
Because you increased by the percent THEN decreased by a different percent, you subtract both percents because they are of like terms. So you do 45%-20% which equals 25% which is what’s left after dropping the total.
Answer:
-2(9x-8)
Step-by-step explanation:
We are to simplify the expression -3.1x+7-7.4x-1.5x-6(x-3/2)
Open the parenthesis
-3.1x+7-7.4x-1.5x-6(x-3/2)
= -3.1x+7-7.4x-1.5x-6x+6(3/2)
= -3.1x+7-7.4x-1.5x-6x+9
Collect like terms
= -3.1x-7.4x-1.5x-6x+7+9
= -12x-6x+16
= -18x+16
= -2(9x-8)
Hence the simplified form of the expression is -2(9x-8)
