"The perimeter P..." gives us one variable to work with.
"is" in this context almost always means "equals".
"the sum" we know we will be adding.
"twice the length l" gives us a variable and a coefficient.
"twice the width w" gives us a variable and a coefficient.
The equation for this is P=2l+2w
I hope in the future you can remember these tips! :)
Hi there! Lily has $31.50 left.
To find our answer we first need to know the amount of money Lily spend.

Therefore, Lily spend $3.50. Now we subtract this amount of money from the amount she initially owned.

Hence, Lily has $31.50 left.
Answer:
b. 60
Step-by-step explanation:
We have been given a formula
, where x represents the number of small vehicles and y represents the number of larger vehicles.
To find the number of small vehicles, we will substitute
in the given equation as:






Therefore, 60 small vehicles were washed in total and option 'b' is the correct choice.
Answer:
Volume = 42.8 cubic centimeters
Step-by-step explanation:
The volume of right circular cone is:

Where
r is the radius
h is the height
We are given height of 9.1 cm
h = 9.1
We aren't given radius explicitly, we are given circumference of 13.3, so we need to figure out radius from that. Lets do this:

So,
r = 2.12
Now, substituting in cone formula, we get the volume to be:

Rounded to nearest 10th is 1 decimal place, so
<u>Volume = 42.8 cubic centimeters</u>
Answer:
c is your awnser
Step-by-step explanation: