Sarah bought a 7-year old car for $10,500. when the car was new, it sold for $21,000. therefore, the depreciation rate is 9.4%.
true
false

False, the depreciation rate is not 9.4%.

Step-by-step explanation:

Given:

Cost of 7-year old car =  $10,500.

Cost of new car = $21,000

depreciation rate =  9.4%.

Solution:

Initial price minus the price after 7 years gives us the depreciation price  

Therefore,

=21000-10500

=10500

Hence the price reduced by 10,500 in 7 years.

Therefore, the depreciation per year is  

=

=1,500

Hence, the depreciation rate percentage can be found out as follows:

Depreciation rate% = =7.14%

Hence, the answer is false.

step-by-step explanation:

most likely the answer is a.

alice wins if a total of 5 is rolled. finn wins if a total of 9 is rolled.

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18