Question

(FAN AND MEDAL)
The following table shows the expressions that represent the sales of 4 companies:


Company A B C D
Sales 340(1.03)x 275(0.89)x 180(1.23)x 260(1.90)x

Answer 1

Rank the company sales by smallest to largest percent of increase and select the correct answer below.
A)A, B, C, D
B)A, D, B, C
C)B, A, C, D
D)C, B, D, A

Answer 2

@Michele_Laino can you help me???

Answer 3

@DanJS @amoodarya @peachpi ???

Answer 4

i need help please

Answer 5

do you mean ?
\[340(1.03)^x \\275(0.89)^x \\180(1.23)^x \\260(1.90)^x\]

Answer 6

yes

Answer 7

ok
so
note that
\[if\\a>b>c>d>0\\x>o\\a^x>b^x>c^x>d^x\]

Answer 8

so, what i need to do now?

Answer 9

which base is largest ?

Answer 10

i tink the first one

Answer 11

@amoodarya ???

Answer 12

@jim_thompson5910 ???

Answer 13

coefficient is not important
base is i m p o r t an t

Answer 14

Bases are marked in \(\color{red}{\text{red}}\)
\[340({\color{red}{1.03}})^x \\275({\color{red}{0.89}})^x \\180({\color{red}{1.23}})^x \\260({\color{red}{1.90}})^x\]

Answer 15

\[340(1.03)^x\\275(0.89)^x\\180(1.23)^x\\260(1.90)^x\\1.9 >1.23>1.03>0.89\\so \\260(1.90)^x >180(1.23)^x >340(1.03)^ >275(0.89)^xx\]

Answer 16

so the asnwer its B? i'm right?

Answer 17

oh no my bad

Answer 18

b is smallest

Answer 19

its A or C? RIGHT?

Answer 20

@EmilyF03 what do you get when you sort these numbers (smallest to biggest)

1.03, 0.89, 1.23, 1.90

Answer 21

again
note that B is smallest
so ...?

Answer 22

look this pic
make a sense

Answer 23

Yup

Answer 24

make a sense ?

Answer 25

yes