8 - 15 means subtract the positive number 15 from 8.
8 - 15 = 8 + (-15) = -7
8 - (-15) means subtract the negative number -15 from 8.
Subtracting a negative number is the same as adding a positive number.
8 - (-15) = 8 + 15 = 23
8 - 15 = -7, and 8 - (-15) = 23. The expressions mean different operations and have different answers.
Answer: 51 inches
Step-by-step explanation:
3x = 9
x=3
P= 3(3) + 4(3) + 10(3)
= 9 + 12 + 30
= 51 Inches
Hope this helps! :)
Answer:
x=320+t-s
Step-by-step explanation:
Answer:
.03472
Step-by-step explanation:
take sell price $20. subtract cost of 11.32 which equals 8.68. then divide 8.68 by the sell price $20
The formula for contribution margin is the sales price of a product minus its variable costs. In other words, calculating the contribution margin determines the sales amount left over after adjusting for the variable costs of selling additional products.