X+y=32x-y=3 using elimination method
2 answers:
X=2, y=1 plug it in and it works By elimination the y cancels itself out and then you add 2x+x to get 3x, add 3+3 and get 6. If 3x = 6, then divide by 3 and you get x=2. If you put that in the first equation, 2 +y= 3, it is obvious that y equals 1.
Answer:
x = 2 , y=1
Step-by-step explanation:
to solve the equation using elimination method we say
let
x+y=3
.................. equation 1
2x-y=3................ equation 2
add all the equation together inorder to get rid of y
we have
x + y = 3
+ 2x -y = 3
------------------------
3x = 6
divide both sides by 3
3x/3 = 6/3
x = 2
substitute for x = 2 in equation 1 to get the value of y
x+y=3
.................. equation 1
2 + y = 3
y = 3 -1
y =2
therefore the value of x and y is 2 & 1 respectively
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A) It takes 3 cones to fill a cylinder
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v=π*r^2*h
The volume for a cone is
v=π*r^2*h*1/3
Answer:
91
Step-by-step explanation:
9x8-7+4x10-2x7
72-7 + 40- 2x7
72 - 7 + 40 - 14
65 + 40 - 14
105 - 14
= 91
Answer:
0.9
Step-by-step explanation:
o.97 is a decimal that goes into the hundredths. 0.9 goes to the tenths.
hope this helps
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