Find the 50th term of this arithmetic sequence
6, 13, 20, 27 ...​

349

Step-by-step explanation:

n = 50   = 6    d = 13 - 6 = 7

= 6 + (50 - 1)(7)

    = 6 + 49(7)

   =  6 + 343

   = 349

formula as mentioned above...

Step-by-step explanation:

N=50,a=6,d=difference between no. that is 8

so,

x50=6+8(50-1)

x50=6+8(49)

x50=6+392=398 Answer

hope it helps....

please write 50 on the correct position of N as drawn in picture

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.