PLEASE SHOW YOUR WORK!! I WILL MAKE YOU BRAINLISET!! ASAP!! Frazer spent some time building a wall with 650 bricks in. On the first da

Question

PLEASE SHOW YOUR WORK!! I WILL MAKE YOU BRAINLISET!! ASAP!!
Frazer spent some time building a wall with 650 bricks in. On the first day, he managed to lay 243. He got more and more tired each day and only managed to lay 2/3 of the number of as the day before. How many days did it take him to build the wall?

Captain Salamander is also building a wall with 650 bricks in it. On the first day, he manages to lay 180 bricks. He also gets tired each day and lays 22 fewer bricks than the day before. Who builds the wall before.
You can make a chart with 6 days, Frazer bricks layed, Frazer total number, Captain bricks layed, captain total number.
SHOW YOUR WORK! I WILL MAKE YOU BRAINLIEST!!

in progress 0
Iris 3 months 2022-02-10T09:09:41+00:00 1 Answer 0 views 0

Answers ( )

    0
    2022-02-10T09:10:57+00:00

    Answer:

    1) 6 days

    2) Captain Salamander

    Step-by-step explanation:

    1) a = 243

    r = ⅔

    Sn = 650

    650 = 243[(⅔)^n – 1]/(⅔ – 1)

    (⅔)^n = 79/729

    n ln(2/3) = ln(79/729)

    n = 5.480683381

    2) a = 180

    d = -22

    S5 = (5/2)[2(180) + 4(-22)]

    S5 = 680 > 650

    Captain Salamander is done within 5 days

Leave an answer

45:7+7-4:2-5:5*4+35:2 =? ( )