Answer:
Step-by-step explanation:
Solution by substitution method
3x-4y=8
and 18x-5y=10
Suppose,
3x-4y=8→(1)
and 18x-5y=10→(2)
Taking equation (1), we have
3x-4y=8
⇒3x=4y+8
⇒x=(
4y+8)/
3 →(3)
Putting x=
(4y+8
)/3 in equation (2), we get
18x-5y=10
18(
(4y+8)
/3) -5y=10
⇒24y+48-5y=10
⇒19y+48=10
⇒19y=10-48
⇒19y= -38
⇒y=-
38
/19
⇒y= -2→(4)
Now, Putting y=-2 in equation (3), we get
x=4y+8
x=
(4(-2)+8)
/3
⇒x=
(-8+8)/
3
⇒x=
0/
3
⇒x=0
∴x=0 and y= -2
Use the slope-intercept y=mx+b to find slope
Slope=m
M=3
Answer: You would need 5 men to paint a room in 3 hours
YWW :)
Answer:
779
Step-by-step explanation:
Answer:
im not sure if this is right or not but you can try it if you want
Step-by-step explanation:
A. 75.8 square units B. 76.4 square units C. 76.8 square units D. 79.4 square units
