3 years ago

What is the common difference of the sequence -31, -23, -15?

1 answer:

5 0

The common difference is essentially what u need to add to one number in the sequence to get the next

So previous number + common difference = next number after that

The common difference would be -8

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A gym membership costs $25 to join and $14 each month. Write and use an algebraic expression to find the cost of the gym members

lina2011 [118]

Answer:

See below.

Step-by-step explanation:

So we know that a gym membership costs $25 plus $14 each month.

In other words, the one-time cost is $25 and there will be a cost of $14 each month.

We can write this as:

$f(x)=14x+25$

Where f(x) equals the total cost given the number of months x.

For 6 months, the total cost will be:

$f(6)=14(6)+25\\f(6)=84+25\\f(6)=\$ 109$

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3 years ago

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2 years ago

Avery bought a washing machine originally priced at $864.72 but on sale for 30% off. After 4% sales tax, what was the total cost

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Step-by-step explanation: 30% of 864.72 is 259.416

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2 years ago

A car dealership buys a car for $12,500 and sells it for $15,750. What is the percent markup( percent increase)

Natalka [10]

Answer:

About 1.26%

Step-by-step explanation:

Divide 15,750 by 12,500 to find your answer.

Hope this helped!

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