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Scilla [17]
3 years ago
7

Elmer has a collection of 300 fossils. Of those, 21% are fossilized snail shells. How many fossilized snail shells does Elmer ha

ve?
Mathematics
1 answer:
kakasveta [241]3 years ago
4 0
Use the percent proportion

 21          x
——  = —— 
100        300

to solve :
21 x 300 = 6300
6300 ÷ 100 = 63

Answer = 63 of Elmer’s shells are fossilized snail shells :)
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Write an equation in​ point-slope form of the line that passes through the given​ points, then write the equation in​ slope-inte
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Answer:

(-3,5) (6,2) (Plug in these points into (y2-y1)/(x2-x1) to find the slope)

2-5/6-(-3)

-3/9

-1/3 is the slope

y - y1 = m(x -x1) (this is point slope form)

y - 5 = -1/3 (x +3) (you plug in the x &y values from the first set of coordinates)

y -5 = -1/3x -1  (you get to slope intercept form by solving from point slope)

y = -1/3x +4 (this is slope intercept form)

Step-by-step explanation:

3 0
3 years ago
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Damm [24]

Answer:

The answer is

<h2>8 hours</h2>

Step-by-step explanation:

To solve this question we use ratio and proportion

From the question

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If for Lisa drove 819 miles for 13 hours

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We have the final answer as

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Hope this helps you

8 0
4 years ago
Solve the equation. -10=2y
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Answer:

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Step-by-step explanation:

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y=-5

7 0
3 years ago
Read 2 more answers
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Answer:

B

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In considering whether to accept the null hypothesis or reject the null hypothesis, we have to take into consideration two things.

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Now, when the p-value is less than alpha, we simply reject the null hypothesis and accept the alternative hypothesis. In a case however, we have the value of p greater than or equal to the significance level alpha, we simply accept the null hypothesis in this case.

The question asks for a rejection case and this can happen only when the p-value is less than the level of significance alpha

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