Expression of total bill is t = 1.15c where t represents total bill and c represents cost of the meal before tipping.
<u>Solution:</u>
Given that family of four had dinner together at restaurant.
Percentage of tip left by family = 15%
Cost of the meal before tipping is represented by variable c.
Need to determine expression for total bill paid.
Let’s assume total bill be represented by variable t.
total bill = cost of the meal before tipping + 15% of tip
15% of tip means 15% of cost of meal before tipping.
=> <em>Total bill = cost of the meal before tipping + 15% of cost of meal before tipping.
</em>
On substituting given variable c and assumed variable t in above expression, we get
t = c + 15% of c
Hence required expression of total bill is t = 1.15c where t represents total bill and c represents cost of the meal before tipping.
Answer:
y = 2x + 7
Step-by-step explanation:
y + 1 = 2 ( x + 4 )
y = 2x + 8 - 1
y = 2x + 7
Answer:
Step-by-step explanation:
You are going to choose 4 books in any order.
Four = 12! /(8!4!) Remember that order doesn't matter, so we have 12C4
495
Exactly the same way you find any missing item in any other subject:
You take the information you're given, and you collect everything you know about
relationships between the information you have and the item you have to find.
Finally, you use the relationships and the given information to find the value of the
missing item.
The process you'll use to find the circumference of a circle will depend on what
information you DO have about the circle.
Answer: It is worth it.
Step-by-step explanation:
If a customer sends 101 - 200 texts in a month, they get charged 8 cents per text.
If they send 201 - 300, they get charged 6 cents per month.
If you have sent 200 texts, your charge for the month will therefore be:
= 200 * 8
= $16.00
If you send the 201th text, you will be charged 6 cents per text. Total charge would be:
= 201 * 6
= $12.06
<em>If you send 1 more text, it will be worth it because you will save:</em>
<em>= 16 - 12.06</em>
<em>= $3.94</em>
