Answer:
15r²-14r-8
Step-by-step explanation:
Use FOIL for this:
(5r+2)(3r-4)
First: 5r × 3r = 15r²
Outer: 5r × (-4) = -20r
Inner: 2 × 3r = 6r
Last: 2 × (-4) = -8
15r²-20r+6r-8=
15r²-14r-8
Make y the subject:
2x+y=-5
2x+5=-y
y=-2x-5
y=-2x+2 is the answer as the slope does not change but the y intercept does
Answer:
9x + 36 = 10
Step-by-step explanation:
Given
x + 3 =
Multiply by the lowest common multiple of 4 and 6, that is 12
12 × x + 12 × 3 = 12 × , that is
9x + 36 = 10 ← equation without fractions
You check if it is even and that the sum of the digits is divisible by 3. That's the divisibility rule of 6.
4 1/2 + 3 1/4 + 2 1/4 = 10 pounds of apples.
10 pounds is approximately 4.5 kilograms.