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3 years ago

150 students were surveyed to see what sport they play what percentage plays soccer

1 answer:

7 0

Not enough info.
You need to know how many played soccer.

If the number who played soccer is represented by S;

Then percentage = S/150 x 100

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the ratio of the length to width in a full-size cello is approximately 8 to 3. What is the width of a full-size cello that is 45

Brut [27]

Answer:

w = 16.875 inches

Step-by-step explanation:

Given that the ratio of the length to width in a full-size cello is approximately 8 to 3.

This will be a constant for all cellos

Using the above we can find out length if we know width and vice versa.

Here we know the length = 45 inches

Since $\frac{l}{w} =\frac{8}{3} =\frac{45}{w}$

BY cross multiplication we find that

8w = 3(45)

Or w = 16.875 inches

Verify:

Let us check our answer by comparing with proportion

l/w = 45/16.875 = 8/3

Hence our answer is right

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3 years ago

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12 ÷ 3 × ______ = 12

Tomtit [17]

Answer:

3 is the answer hope it helps

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3 years ago

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It is given that m=3x+1 and y= (5/1+m^2).<br>Find dy/dx in terms of x.<br>

DiKsa [7]

Answer:

${ \underline{ \bf{ \frac{dy}{dx} = - \frac{30m}{ {(1 + {m}^{2}) }^{2} } }}}$

Step-by-step explanation:

${ \bf{m = 3x + 1}} \\ { \sf{ \frac{dm}{dx} = 3 }} \\ \\ { \bf{y = \frac{5}{1 + {m}^{2} } }} \\ \\ { \tt{ \frac{dy}{dm} = \frac{ - 10m}{ {(1 + {m}^{2} )}^{2} } }}$

Using chain rule:

${ \boxed{ \bf{ \frac{dy}{dx} = \frac{dy}{dm}. \frac{dm}{dx} }}}$

${ \sf{ \frac{dy}{dx} = - \frac{10m}{ {(1 + {m}^{2}) }^{2} } \times 3}} \\ \\ { \sf{ \frac{dy}{dx} = - \frac{30m}{ {(1 + {m}^{2}) }^{2} } }}$

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8 0

3 years ago

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Please let me know if this is correct and if not what is the correct answer. Thanks

vlada-n [284]

There’s nothing on the picture

6 0

2 years ago

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Help please whats the answer

Ad libitum [116K]

<h3>Answer:</h3>

12 students

<h3>Explanation:</h3>

40% earned a B; 20% earned an A, so (40%+20% =) 60% got a "B or better."

60% of 20 students is ...

... 60/100 × 20 students = 1200/100 students = 12 students

5 0

3 years ago

150 students were surveyed to see what sport they play what percentage plays soccer￼￼

150 students were surveyed to see what sport they play what percentage plays soccer