The slope of the line given is 1 because that is the coefficient in front of x. A slope is found by dividing the change in y by the change in x. Knowing this, we can set up an equation with the points given.
1 = (-2 - k)/(-7 +1)
Now we'll solve to find k.
Firstly we'll multiple both sides by (-7 + 1):
1(-7 + 1) = (-2 - k)/(-7 +1)(-7 + 1)
-7 = -2 - k
Now we'll add 2 to both sides:
-7 + 2 = -2 - k + 2
-5 = -k
Now to get k by itself we must divide by negative one on both sides:
-5/(-1) = -k/(-1)
5 = k
Your answer is 5 = k
Answer:
A fruit seller bought 160 kg of apples at Rs. 32 per kg. He sold one fourth of them at Rs. 40 per kg and sold the rest at Rs. 31 per kg. Find his profit or loss.
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Letsanswers
Answer:
Step 2 and step 4
Step-by-step explanation:
Isabella solved the following equation: 
<u>Step Work Justification</u>
- given
1. 
- distributive property
2. 
- subtraction property of equality
3. 
- combine like terms
4. 
- subtraction property of equality
5. 
- combine like terms
6. 
- division property of equality
Two false steps 2 and 4
Answer:
you just did
Step-by-step explanation:
Answer: x=536
Step-by-step explanation: Cross multiply to get 12x=6432, then divide each side by 12 to get 536
