Since y = x - 2, replace the y in 8x + 13y = 2 with x - 2:
8x + 13(x - 2) = 2
Simplify the equation by multiplying 13 by (x - 2):
8x + 13x - 26 = 2
Add 26 on each side:
8x + 13x = 28
Add like terms:
21x = 28
Divide by 21 on each side:
x = 28/21
Simplify the fraction:
x = 4/3
Now that we have solved for x we can now use it to plug into one of the equations to solve for y. Plug in 4/3 for x in y = x - 2:
y = (4/3) - 2
Subtract:
y = -2/3
Let's check the work to make sure it is right:
8(4/3) + 13(-2/3) = 2
32/3 + -26/3 = 2
6/3 = 2
2 = 2
As you can see the system of equations has been solved correctly.
Well, if we divide 150 by 5 to see how much each individual part is, we get 30. To find out how much Lora got, we need to multiply 30 by 4, which is 120. Altogether, they got 120 plus 150, which is $270.
Answer:
48cm
Step-by-step explanation:
8 x 6
Answer:
0.05
Step-by-step explanation:
10*.005
The second result is more precise because it's in millilitre,so if the first were to be fully precise,it should have been 78.6 cm