Part A: Chose some value for x, that means any amount of books to print for example 100 books, so x=100
Replace x=100 in C(x) and solve:
C(100)=3.5*100+1200=1550
Part B: Replace C(x) by 1900 and solve for x from the given equation:
1900=3.5x+1200
3.5x=1900-1200
x=700/3.5= 200
Part C: the statement C(20)=1270 means that 1270 is the cost for printing 20 books.
Part E: C(40.5)=1341.75 I think this statement is incorrect given the context because x means number of books to print so this value must be an integer number.

8 0

3 years ago

9. A cup of tea costs x pence. Coffee costs 20 pence more. Hermes buys 2 cups of tea and one cup of coffee. In total Hermes pays

qaws [65]

Answer:

£1.20

Step-by-step explanation:

<u>Given:</u>

Tea = x
Coffee = x + 0.2

<u>Comparing the total cost, work out the value of x:</u>

2x + x + 0.2 = 3.80
3x = 3.60
x = 1.20

5 0

2 years ago

At six am the temperature was -8°c at noon the temperature was 3°c what was the change in temperature between 6 am and noon

Roman55 [17]

The temperature change from 6am to noon is 11°c

4 0

3 years ago

I will make you has brainliest please help with these questions​

I will make you has brainliest please help with these questions