Question

Please help with the attached.

Answer 1

Question B.

Answer 2

they need n for 60 bricks :sub 60 then solve for n using u formula

Answer 3

Here sum is given 60..

So:

a = 1 d = 2..

\[60 = \frac{n}{2}(2 + (n-1)(2)) \implies 2n^2 = 120 \implies n^2 = 60\]

Find n from here..

Answer 4

\[\sqrt{60}???\]

Answer 5

60=n/2[1+(n-1)2]
120=[1+2n-2]
n=121/2

Answer 6

a=1 not 2 @ water

Answer 7

@waterineyes

Answer 8

Wait @strawberry_militia

Answer 9

Here a = 1:

Do you know the sum formula @REMAINDER

\[\large Sum = \frac{n}{2}(2a + (n-1)d)\]

Answer 10

\[\sqrt{60} = 7.74\]

So I think 7 steps can be completed.

Answer 11

My text gave the answer 7 (this uses 49 bricks)

Answer 12

Thanks.

Answer 13

Welcome dear..