Question

CAN SOMEONE HELP ME PLEASE?
Mr. Rasmussen laid 9 bricks in a row to make a walking path through his garden. If each brick has a length of 8 inches, a width of inches, and a height of 3 inches, what is the surface area of the walkway?

Answer 1

CAN SOMEONE PLEASE HELP ME ?

Answer 2

please?

Answer 3

what is width ??

Answer 4

3.5 inches

Answer 5

surface area = area of the surface ..

so over here surface is the walking surface ... = (8 * 3) * 9..

i.e. surface of each brick * number of bricks...

Answer 6

(8 * 3) * 9 = 216 sq inch...

Answer 7

So would 216 sq inch be the awnser ?

Answer 8

that's not the correct awnser .

Answer 9

width is 3 inch or 3.5 ??

Answer 10

3.5

Answer 11

ohkey.. so use same formula and replace 3 by 3.5..

(8 * 3.5) * 9

Answer 12

i got 252

Answer 13

yup.. thats the answer..

Answer 14

That's not one of the choises though.

Answer 15

A. 84 sq in
B. 677 sq in
C. 741 sq in
D. 756 sq in

Answer 16

oh... i missed the side , i guess.. let me try again..

Answer 17

Okay. The awnser i got is 125 but thats not one of the choices.

Answer 18

ohkey 741 is the answer.. let me show u...

Answer 19

Surface area = [ upper surface + 2 * side surface + bottom surface ] * 9 + front & back surface..

A = [ (8 * 3.5) + 2 * (3 * 3.5) + (8 * 3.5) ] * 9 + 2 * (8 * 3 )... that will give u 741..

Answer 20

Thank you so much (:

Answer 21

u also must subtract because of the interior face