Answer:
10x^2 + 3x - 2
Step-by-step explanation:
To find the sum of the polynomials, add the like terms together. The sum of the given polynomials is 10x^2 + 3x - 2.
To find the sum of the polynomials, you need to add the like terms together. Start by adding the coefficients of the x-squared terms, which are 8 and 2. This gives you 10x^2. Then, add the coefficients of the x-terms, which are -7 and 10. This gives you 3x. Finally, add the constant terms, which are 3 and -5. This gives you -2. So, the sum of the polynomials is 10x^2 + 3x - 2.
#SPJ12
many days do they earn the same amount?
Answer:
They earn the same amount after 8 days.
Step-by-step explanation:
When both started working(the day Jack started, John had been working for 2 days earning $24 a day, so he already had 2*24 = $48). We started modeling from this day.
John:
He already had $48.
He would earn $24 per day.
So after n days, his amount would be:
Jack:
He has nothing.
He would earn $30.
So after n days, his amount would be:
After how many days do they earn the same amount?
After n days.
n is found when:
They earn the same amount after 8 days.
B. 1 12⁄7
C. 1 7⁄12
D. 7 1⁄2