I hope this helps you
x=3
f (3)=4.3^3-5
f (3)=4.27-5
f (3)=108-5
f (3)=103
Answer:
$50.4
Step-by-step explanation:
Cost = $28
Mark up = 80%
<u>Sale price is: </u>
- $28 + 80% =
- $28*1.8 =
- $50.4
Answer:
13 , 17 and 25 cm.
Step-by-step explanation:
Let the length of the first side be x cm.
Then the second is x+4 and the third is 2x-1 cm long.
As the perimeter = 55 cm we have the equation:
x + x + 4 + 2x - 1 = 55
4x + 3 = 55
4x = 52
x = 13 cm.
You have the same amount of marbles
1000 divided by 10 = 100
Mark sold 100 books of tickets
$375 divided by 100 = $3.75
each book of tickets was $3.75
