Answer: it is 2 1/3
Step-by-step explanation:
Answer:
He has memorized 18 words
Step-by-step explanation:
(3/4)*24 = 18
Answer:
6
Step-by-step explanation:
3(x+2)=24
3x+6=24
-6 -6
<u>3x=18</u>
3
x=6
Answer:
12
Step-by-step explanation:
Hi there !
144 | 2
72 | 2
36 | 2
18 | 2
9 | 3
3 | 3
1
144 = 2⁴ × 3²
√144 = √2⁴×3² = 2²×3 = 4×3 = 12
Good luck !
(1) 5x=-2+7y
(2) x-7y=-34
Using the method of substitution:
Isolating x from the equation (2):
(2) x-7y=-34
x-7y+7y=-34+7y
x=7y-34 (3)
Replacing x by 7y-34 in the first equation:
(1) 5x=-2+7y
5(7y-34)=-2+7y
Solving for y:
35y-170=-2+7y
35y-170+170-7y=-2+7y+170-7y
28y=168
28y/28=168/28
y=6
Replacing y by 6 in equation (3)
(3) x=7y-34
x=7(6)-34
x=42-34
x=8
Answer: The solution of the system of equations is: x=8 and y=6