Start at 16 and count up by 2 until 26.
Answer:
![\left[\begin{array}{ccc}32&-55\\3&39\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D32%26-55%5C%5C3%2639%5Cend%7Barray%7D%5Cright%5D)
Step-by-step explanation:
![\left[\begin{array}{ccc}0&-15\\3&15\end{array}\right] +\left[\begin{array}{ccc}32&-40\\0&24\end{array}\right] =\left[\begin{array}{ccc}0+32&-15+(-40)\\3+0&15+24\end{array}\right] = \left[\begin{array}{ccc}32&-55\\3&39\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D0%26-15%5C%5C3%2615%5Cend%7Barray%7D%5Cright%5D%20%2B%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D32%26-40%5C%5C0%2624%5Cend%7Barray%7D%5Cright%5D%20%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D0%2B32%26-15%2B%28-40%29%5C%5C3%2B0%2615%2B24%5Cend%7Barray%7D%5Cright%5D%20%3D%20%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D32%26-55%5C%5C3%2639%5Cend%7Barray%7D%5Cright%5D)
One way is to factor it
trial and error, with experience
(3x+5)(x-2)
answer is C
answer
1385
explanation
to find the total, subtract the amount they earned by the amount they spend
total = earned - spent
earned
each week, Mr. Smith earns 1900 and and his earns 1150, so add these values together to find the total amount they earn
earned = 1900 + 1150
earned = 3050
spent
they spend money on food, gas, mortgage, and savings, so add these values together to find the total amount they spend
spent = food + gas + mortgage + savings
spent = 300 + 90 + 875 + 400
spent = 1665
total
now that we know how much they earn and spend, we can find the total
total = earned - spent
total = 3050 - 1665
total = 1385
every week they have 1385 left over
Answer:
14.29 minutes
Step-by-step explanation:
take the sum of their time 1/20+1/50,then find the reciprocal