<span> 2(2x-3y=3)..................4x-6y=6..........equation 1
3(5x+2y=17)
...........15x+6y=51</span>........equation 2
adding equation 1 and equation 2;
19x=57
x=3
2x-3y=3
(2*3)-3y=3
6-3=3y
y=1
Answer:
The avergae temp rose 51° F.
Step-by-step explanation:
Average temp in January = -8°F
Average temp in March = 43°F
-8 is 8 away from 0 (absolute value)
43 is 43 away from 0 (absolute value)
43 + 8 = 51
The average temp rose 51°F
Answer:
x=6
Step-by-step explanation:
3(3x-8)=4x+6
First you would distribute the 3 on the L side to the parenthasies
9x-24=4x+6
Then, you would subtract 4x from both sides because it is the smallest X value
5x-24=6
Add 24 to both sides (inverse operations)
5x=30
divide both sides by 5
x=6
Answer:
57mm
Step-by-step explanation:
C=2(pi)(r)
C=2(3.14)(9)
C=56.52
rounding up, its 57mm
Answer:
is it 7?
Step-by-step explanation: