Hey!
You can make a proportion:

Cross multiply

Divide by 2

<em>5 pounds would cost $10.50</em>
Good luck and hope this helps! :)
Oliver is incorrect because if he were correct he would learn for 2 hours and 15 minutes because, 45 minutes * 3= 2:15 minutes.
Step-by-step explanation:
3cos2x +sinx=1
3(1-2sin²x)+sinx=1
3-6sin²x+sinx=1
sinx(-6sinx+1)=1
either
sinx=1
sinx=sin(90)
:.x=90
or
-6sinx+1=1
-6sinx=1-1
sinx=0/-6
sinx=sin0,sin180
:.x=0,180and90
Answer:
f(x) = 25,000 ( 1 + 0.025 )ˣ
Step-by-step explanation:
Given word problem becomes
f(x) = 25,000 ( 1 + 0.025 )ˣ
The quotient of a number and three can be written as n/3