15x+8y=56 in slope intercept form
1 answer:
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The correct question is:
The graph attached shows the number of points Derek scored
during his first five basketball games.
Write a multiplication equation and a division equation that compare the number of points Derek scored during Game 1 (x) to the number of points Derek scored during Game 4 (y).
Answer:
Multiplication equation is y = 3x
Division equation is x = y/3
Step-by-step explanation:
During Game 1, Derek had 6 points
Let x be this point, that is
x = 6
During Game 4, he had 18 points
Let y be this point, that is
y = 18
Notice that he has three times as many point in Game 4 as he had in Game 1. (Because 18 is 6 × 3)
This can be written mathematically as
18 = 6 × 3
y = x × 3 (where y is 18, and x is 6)
y = 3x (this is multiplication equation)
If you divide both sides by 3, we have
x = y/3 (this is the division equation)
Answer:
It will take 4.5 hours for rick to complete the job.
Step-by-step explanation:
Given:
Time taken by Phil to paint the garage = 12 hours.
It means that for each hour he does = of the job.
.
Time taken by Rick to paint the garage = 10 hours.
It means that for each hour he does = of the job
.
If they work together for 3 hours,
Phil does job in 3 hrs =
Rick does job in 3 hrs =
.
So in three hours of working together job done =
.
This means job of the painting entire garage have been done 0.55 of it.
1 - 0.55 = 0.45.
So there is 0.45 job left
At this point Phil quits and Rick presses on by himself. Since he does 1/10 of the garage every hour
Let T represents the time that Rick needs to complete the job after Phil leaves.
Hence,
Hence it will take rick 4.5 hours to complete the remaining job.