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olga_2 [115]
3 years ago
9

In a class of 30 students, 18 are boys.what percent of students are girls

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
4 0

There are 30-18 = 12 girls. Their percentage is

... 12/30 × 100% = 40%

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The price p (in dollars) and the demand X for a particular clock radio are related by the equation X = 3000 -10p. Find and answe
alukav5142 [94]

The price p based on the equation given is p = 3000 - 0.1x.

<h3>How to express the price?</h3>

The equation given in the question is x = 3000 - 10p. The price(p) will be:

x = 3000 - 10p.

Make p the subject of the formula

x + 10p = 3000

10p = 3000 - x

p = (3000 - x)/10

p = 3000 - 0.1x

The revenue will be price multiplied by quantity. This will be:

= (3000 - 0.1x) × x

= 3000x - 0.1x²

The marginal revenue will be calculated after differentiating. This will be:

= 3000x - 0.1x²

= 3000 - 0.2x

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brainly.com/question/1245771

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6 0
1 year ago
Subtract 4 1/3 -8 enter your answer as a simplified mixed number by filling in the boxes
harina [27]
-3 2/3 I just changed the mixed number into a improper fraction
6 0
2 years ago
Read 2 more answers
Question 5 (1 point)
Bess [88]

Answer:

x > -3

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3 0
3 years ago
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Math experts please help!!!!​
Shalnov [3]

Answer:

x is 72 degrees

Step-by-step explanation:

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Now divide this by 5, the number of sides

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To find the measure of x, look at the opposite angle, which is 108 degrees

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The measure of angle x is 72 degrees.

If this answer is correct, please make me Brainliest!

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3 years ago
What is the value of a and b
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Hey i would answer but you didn’t provide enough context! make sure to upload images with your question hun.
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3 years ago
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