First, you have to add up the cost of each meal and drink:
12.50 + 12.50 + 1.50 + 1.50 = 28
$28 is the cost before the tip. Now multiple 28 by .18 to find the tip:
28 x .18 = 5.04
The tip was $5.04. Add the 28 and the 5.04 to get the total cost:
28 + 5.04 = 33.04
ANSWER:
The total cost was $33.04
Answer:
2.25 (or
) g/mL
<u>Skills needed: Density</u>
Step-by-step explanation:
1) Briefly, let's cover what density is:
- It is 
- Measures the mass per unit of volume
- In this situation the formula for density is: 
--->
is the final mass
--->
is the initial mass
--->
is the final volume
--->
is the initial volume
2) In this case, we start out with a mass of 180 grams as stated in the problem, and also 50 mL of water initially.
This means that:
-
is 180 g
-
is 50 mL
3) Also, we end up with 270 g in mass, and 90 mL of water finally.
-
is 270g
-
is 90 mL
4) We can find density by substitute given the values above:

5) Our answer is 2.25 g/mL (since mass is grams (g), and volume is milliliters (mL) in the problem above).
Answer:
Hexagon and rectangle
Step-by-step explanation:
Answer:
3 4/9 hours
Step-by-step explanation:
3 + 4/9= 3 4/9