40%= 56
1%= 56/40= 1.4
100%= 1.4 x 100= 140
Answer:
x=-5
y=-2
Step-by-step explanation:
equation 1 - equation 2
(2x-4y=-2) - (2x+3y=-16) = (-7y=14)
y=14/-7=-2
then substitute y=-2 into any equation
2x-4(-2)=-2
2x+8=-2
2x=-10
x=-10/2=-5
-2.5(1-2n)-1.5n
=-2.5+5n-1.5n
=-2.5+3.5n
Answer: B. -2.5+3.5n
Yo sup??
a.Just draw any triangle which has its sides as 3x,4x and 5x where x is any variable.
if x=1 we get the given triangle ie 3,4 and 5
if x=2 we get a similar triangle ie 6,8 and 10
if x=3 we get another similar triangle and so on.
b.Sam will be correct when all the 3 sides of the two triangles are also equal whereas Delaney will always be correct in the rest of the possible cases.
Hope this helps
Hello!
500 millimeters = 0.0005 liters.
(for volume)
Enjoy.
~Isabella