That is all the work needed to solve this problem
8x + 7y = 19
- 8x
7y = 19 - 8x
÷ 7
y = 2 5/7 - 8/7x
So if that line is perpendicular to the line you're looking for, then the gradient (x value/slope) is the negative reciprocal to the gradient you're looking for, which would then be 7/8. You are told it has a y intercept of -7, so your final answer is:
y = -7/8x - 7
Hope this helps!
Answer:
2
Step-by-step explanation:
1/12 + 5/12 + 1/4 + 1/4 = 6/12 + 2/4 = 6/12 + 6/12 = 12/12 = 1
Yes, they did.
The only two things that matter here are the number of grandchildren who need new coats, and the number of coats he buys for those grandchildren.
He will be buying new winter coats. How does he know how many to buy? He will buy the number of coats needed for the grandchildren who outgrew their winter coats. The number of winter coats he buys is a function of the number of grandchildren who need new coats.
The number of winter coats he buys <em>depends</em> on the number of grandchildren who outgrew their coats. That means that the number of grandchildren who outgrew their coats is the independent variable. The dependent variable is the number of coats he buys because it depends on the number of grandchildren who outgrew their winter coats.
Answer: o is the independent variable and n is the dependent variable
