The answer is 0.4 because 6/15 is 2/5 which is 0.4 as a decimal
I think the answer is 11 and 12 but my calculations could be incorrect.
Hello
This question requires us to change the subject of a formula. This can be achieved by following the order of operations in reverse. First, isolate the terms with our variable of interest, x:
ax - bx = z - y
Then, we take x out as it is being multiplied to both a and b:
x(a - b) = z - y
Dividing (a - b) on both sides, we get:
x = (z - y) / (a - b)
Thus, the answer is A
Assuming your target boxes are (-12x +36) and (<em>8x -24</em>), here are the classifications of the expressions with parentheses.
-3(4x + 12) = -12x -36 (neither)
-4(3x -9) = -12x +36
4(2x - 6) = <em>8x -24</em>
-4(-2x - 6) = 8x +24 (neither)
3(-4x +12) = -12x +36
2(4x - 12) = <em>8x -24</em>
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The distributive property applies:
... a(b+c) = ab +ac
Same signs multiply to give positive. Different signs multiply to give negative.
