Can someone help me out with this?
2 answers:
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If Nate paints the wall in 4 hours, it means that he can paint 1/4 of the wall every hour.
Similarly, if Jill paints the wall in 7 hours, it means that he can paint 1/7 of the wall in one hour.
So, together, they paint the following fraction of the wall in one hour:
.
At this rate, they need 28/11 hours to paint the whole wall, in fact, after that amount of time they paint
i.e. the whole wall
Answer:
<em>-3</em>
Step-by-step explanation:
To find slope use the equation
1. Pick any two coordinate pairs to use in the equation. I'll choose (-2, 7) and (-1, 4).
2. Plug these coordinates into the formula. <em>4 - 7 / -1 - - 2</em>
3. Solve!<em> -3/ 1 = -3</em>
4. The slope of this line is -3