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
the answer is c...........
Answer:
C is the answer I think...
Answer:
360
Step-by-step explanation:
if the chicken sandwiches is 3/5 so
tuna sandwiches is 1-3/5=2/5
then tuna sandwiches is 240, we need solve how many all sandwiches
so 240÷2/5=600 but the question is how many chicken sandwiches were there, we only need to solve 600*3/5=360 this is answer.
if you next time don't know the question, you can tell me
