Dan drove 845 miles in 13 hours. At the same rate, how many miles would he drive in 7 hours?
miles
6
?.
PLEASE HPPP

7 hours=455 miles 6 hours=3

Step-by-step explanation:

FIrst, lets find how many mph he is at. 845/13= 65mph

So, if he goes for 7 hours, he would do 7*65, which is 455 miles

Then we can do 6*65 which is 390

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,