Answer:
(6,-4)
Step-by-step explanation:
-3x-9y = 18 (equation 1)
4x+3y = 12 (equation 2)
multiply equation 2 by 3, and add it to equation 2
-3x-9y = 18
12x+9y = 36
-----------------
X's cancel out
9x = 54
Divide both sides by 9
x = 6
Plug in 6 for x in any of the original equations
(Plugging into Equation 2)
4(6)+3y = 12 Multiply 4(6)
24+3y = 12 Subtract 24 from both sides
3y = -12 Divide 3 on both sides
y = -4
Therefore the solution is (6,-4).
Answer:
1. 144 2.16 3. 1 4. 1.69
Step-by-step explanation:
Answer:
p is greater than or equal to 18
Step-by-step explanation:
18+7=25 so therefore p can be any number greater than 18 since it will be over 24
12 divided by 3 equals 4. And the. Parentheses means multiply, so 4x4=16
Hope this helps! Good luck!
Answer:
$21.59
Step-by-step explanation:
The original hourly rate was x.
She raised it 6%. The raise is 6% of x, or 0.06x.
The new rate is x + 0.06x or 1.06x.
The new rate is $22.89.
1.06x = 22.89
Divide both sides by 1.06.
x = 21.59
