Kayla is using 492 meters of a string when she is done there is 49 meters left then Ella gives kayla 3 times more than she has now Ella has 42 meters now how much did Ella give and is it greater than Kayla's total

196 meters,  it is not greater than Kayla's total.

Step-by-step explanation:

Given:

Kayla is using 492 meters of a string when she is done there is 49 meters  left.

Ella gives Kayla 3 times more than she has now.

To find:

How much did Ella give and is it greater than Kayla's total ?

Solution:

Kayla has now ( after using 492 meters of a string ) = 49 meters

Ella gives Kayla 3 times more than Kayla has now means,

Therefore, Ella gave 196 meters string to Kayla.

Now, to find that is it greater than Kayla's total,

Kayla's total length of string = 492 + 49 = 541 meters

Kayla's total length of string is 541 meters while Ella gave 196 meters string to Kayla which is less than Kayla's total.

Thus, it is not greater than Kayla's total.

step-by-step explanation: so we look at the formula un = a + (n-1)d

un is the amount of seats

n is the nth term aka row number

a is the original sequence/row number

d is the difference between each term

so in this a=22 d=6 and n can remain as n because we are simply formjng a rule

lets put these in the equation

un=22+(n-1)(6)

this is your answer to part a

however

lets double check that this is correct, we'll try putting it into the second term

un=a+(n-1)d

u2=22+(2-1)(6)

u2=22+6

u2=28

as the question said the second row has 28 seats so now we know the formula we made is correct.

as for part b

un=a+(n-1)

its asking us to find a row with 100 seats.

remember un was the amount of seata so all we do is substitute this in.

un=100 a=22 d=6

un=a+(n-1)d

100=22+(n-1)(6)

so now we simplify to find n which is the row number.

100-22=22+(n-1)(6)-22

78=(n-1)(6)

78/6=(n-1)(6)/6

13=n-1

13+1=n-1+1

14=n

so now we know that in the 14th row there is 100 seats.

hope this and that you understood! its my first time using the app or anyone out on here : p its also me to revise so a bunch! ask more questions if you dont understand ☺