Step-by-step explanation:
there is no big "trick" involved.
you just need to do the multiplication and then move the terms into the right spot, so that the x-, y- and constant terms are in the same place as the generic Ax + By = C
y + 5 = 4(x + 1)
y + 5 = 4x + 4
-4x + y = -1
or (after multiplying both sides by -1)
4x - y = 1
yes, B = 1 (or -1), so you could write 1y (or -1y) instead of only y (or -y).
but nobody does that.
Answer:
1000 : 10
Step-by-step explanation:
1 cm = 0.01 m
10 000 cm = 10 000 * 0.01 m = 100m
so the answer is 1000 : 10.
Answer:
Step-by-step explanation: if the same is true for the other tree, each shadow is -10 feet smaller than the tree itself. If the tree has a 20 foot shadow, you add 10 and get 30.
The answer is 69.9. hope this helps!! :)
Answer:
C) $25 + $1.25
Step-by-step explanation:
1. 51 x .5 = 25.5
2. 25.5 x .05 = 1.275
25 + 1.25 ≈ 25.5 + 1.28