Let 6x-3y=3 be equation 1 and -2x +6y=14 be equation 2.
Take 2 common from eq 2 let the optioned eq be equation number 3.
And solve eq number 1 and 3.
Answer:
Step-by-step explanation:
a) <u>Number of girls:</u>
<u>Percentage:</u>
b) <u>Number of students prefer watching TV:</u>
<u>Percentage:</u>
....................................do you mean 3.11%
Answer:
a. y = 7500 - 500x
b. $ 4,500
Step-by-step explanation:
a. Given,
The original value of the phone = $ 75,00
Let the linear function that shows the value of booth after x years,
y = b - ax,
For x = 0 years, y = 7500
⇒ 7500 = b - a(0) ⇒ b = 7500
For x = 15, y = 0,
0 = b - 15x ⇒ 0 = 7500 - 15a ⇒ 15a = 7500 ⇒ a = 500
Hence, the function that shows the value of car after x years,
y = 7500 - 500x
b. if x = 6,
The value of the booth after 6 years would be,
y = 7500 - 500(6) = 7500 - 3000 = $ 4,500
The answer to this question is 2.
