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likoan [24]
3 years ago
5

The function C(x)=17.5x-10 represents the cost (in dollars) of buying x tickets to the orchestra with a $10 coupon. How much doe

s it cost to buy five tickets?
Mathematics
1 answer:
Rudiy273 years ago
5 0

Answer:

8 tickets

Step-by-step explanation:

x = 10 in the given equation.

We have then:

C (x) = 17.5x - 10

C (10) = 17.5 * (10) - 10

C (10) = 165

Answer:

to buy 10 tickets cost:

$ 165

b. How many tickets can you buy with $ 130?  

For this case we must make the substitution: C (x) = 130

We have then:

C (x) = 17.5x - 10

130 = 17.5x - 10

Clearing x we have:

17.5x = 130 + 10

17.5x = 140

x = (140) / (17.5)

x = 8

Answer:

You can buy 8 tickets with $ 130

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Which is the product of 7/9 and 6 in a fraction number
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Answer:

4 2/3

Step-by-step explanation:

7/9 multiplied by 6/1 = 42/9

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Turn it into a mixed number: 4 2/3

3 0
3 years ago
I need to know how to solve these
My name is Ann [436]
1. make an equation
4x+7(20) = 5(x+20)
2. multiply the numbers and distribute 5 through the parenthesis
4x+140 = 5x+100
3. move variables to the left side and change its sign and move constant to the right side and change its sign
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4. collect the like terms and calculate the difference
-x = -40
5. change the signs on both sides of the equation
x = 40
he needs to use 40 pounds of the cheaper coffee.
hope this helped!
4 0
3 years ago
The cost of a car, in dollars, t years after its purchase is $20,000 - $3,000t. Which statement is correct? please explain too.
xeze [42]
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B
5 0
4 years ago
For the function f(x) = 4x2 - 3x - 7, find f(-2).
timurjin [86]

Answer:

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Step-by-step explanation:

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