Let Robs weekly allowances be X
he spent half f it n candy so he spent X/2
he gardened for $7 extra and at the end he had $12
so to calculate his weekly allowances, we will develop the following equation
X/2 +7=12
X/2=12-7
X/2=5
X=5x2
X=10
Rob's weekly allowance is $10
Answer:
the answer for your question is -42
Step-by-step explanation:
hope i m correct
thank you
Not necessarily, the more correct definition is opposite reciprocal slopes.
The example used is how horizontal and vertical lines are parallel. Horizontal lines have a slope of 0, also written as 0/1. However, vertical lines have an undefined slope, which isn't necessarily negative. It has a slope of 1/0, which is undefined. In this case, the reciprocal isn't negative.
In all other cases (1 and -1, 2 and -1/2, etc.) yes, the perpendicular pairs are negative and reciprocal.
