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3 years ago

What is 4c minus 7.8 if c is 4

1 answer:

5 0

Here is a substitution problem. By saying c is 4, we can replace anywhere we see c with the number 4.

c = 4

4c - 7.8
= 4(4) - 7.8
= 16 - 7.8
= 8.2

Hope this helps! :)

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A DVD was priced at $2.87 last week. This week the same DVD is priced at $10.59. What is the percent increase in price?

solniwko [45]

Answer:

Percentage increase = 269%

Step-by-step explanation:

Price of a DVD last week = $2.87

Price of the same DVD this week = $10.59

Increase in the price of DVD between last week and this week = 10.59 - 2.87

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3 years ago

4 question in one 65 points

jeka94

Q6.

The slope-intercept form: y = mx + b

m - slope

b - y-intercept

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<h3>Answer: y = 3x + 4</h3>

Q7.

2x + 4y = 4 |subtract 2x from both sides

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<h3>Answer: The second graph.</h3>

Q8.

The point-slope form:

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<h3>Answer: The first equation.</h3>

Q9.

It's a vertical line. The equation of a vertical line is x = <em>a</em>, where <em>a</em> is any real number.

<h3>Answer: x = -4</h3>

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If you have 23500 apples and you had 42600 oranges how many do you have in all?

vekshin1

Answer:

66,100 in all.

Step-by-step explanation:

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