Answer:
q < 56
Step-by-step explanation:
q + 12 - 2(q - 22) > 0
q + 12 - 2q + 44 > 0
-q + 56 > 0
+q +q
56 > q
Answer:
paul had £5x=£65
Step-by-step explanation:
Dan: Paul = 9:5
Dan £9x, Paul £5x
9x-26=5x+26
9x-5x=52
4x=52
x=13
9x=117
5x=65
paul had £5x=£65
5(2x^2 - 5x - 3) = 5(2x + 1)(x - 3)
hope this helps :)
Answer:
f(x)= $70 - $1.5*x
Step-by-step explanation:
You know your friend spends $ 5 to enter the fair and $ 15 for food. So the total you spent is given by:
$5 + $15= $20
Knowing that the trips at the fair cost $ 1.50 per trip, and with x being the number of trips, then the cost after x trips will be:
$1.5*x
So the money spent after x rides can be expressed as:
$20 + $1.5*x
Knowing that your friend has $90 when he goes to the fair, to calculate the amount of money he has left after x rides, the amount taken to the fair and the amount spent is subtracted:
$90 - ($20 + $1.5*x)
$90 -$20 -$1.5*x
$70 - $1.5*x
By calling the function f(x) used to determine the amount of money left after x trips, you can finally express:
<u><em>f(x)= $70 - $1.5*x</em></u>
