Answer:
a-b = 5x² + 6x -8
Step-by-step explanation:
a = 3x² + 5 -6 ⇒ 3x² -1
b = -2x² -6x + 7
a-b
3x² -1 -( -2x² - 6x + 7)
3x² -1 + 2x² + 6x -7
5x² + 6x -8
Answer:
$24
Step-by-step explanation:
original price of a dress = $30
discount = 20%
discount amount = discount% of original price
=20/100 * 30
=30/5
=$6
price that consumer will pay after discount = $30 - $6
=$24
Point form: (4,-2)
Equation form: x=4, y=-2
Answer:
10.5
Step-by-step explanation:
65% of 70 is 45.5
So gold is 45.5 and silver is 54.5
so but45.5 + 54.5 = 100% but divide by 2
which is 50% but now we find 10% and 5%
10% = 7
5% = 3.5
now add 7 and 3.5 together
7+3.5 = 10.5
Answer:
10%
Step-by-step explanation:
The change is 90-100 = -10. As a percentage of the original amount, that is ...
-10/100 × 100% = -10%
The change from 100 to 90 is a reduction of 10%.
