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geniusboy [140]

3 years ago

11

At a middle school , 38% of all seventh graders have taken swimming lessons. There are 250 students in the seventh grade. How ma

ny of them have taken swimming lessons?

1 answer:

yanalaym [24]3 years ago

3 0

Answer:

95

Step-by-step explanation:

38% of 250 is 95.

250 / 100 is 2.5

2.5 x 38 = 95

You might be interested in

Use properties of limits and algebraic methods to find the limit, if it exists. (If the limit is infinite, enter '[infinity]' or

soldi70 [24.7K]

Answer:

The limit of this function does not exist.

Step-by-step explanation:

$\lim_{x \to 3} f(x)$

$f(x)=\left \{ {{9-3x} \quad if \>{x \>< \>3} \atop {x^{2}-x }\quad if \>{x\ \geq \>3 }} \right.$

To find the limit of this function you always need to evaluate the one-sided limits. In mathematical language the limit exists if

$\lim_{x \to a^{-}} f(x) = \lim_{x \to a^{+}} f(x) =L$

and the limit does not exist if

$\lim_{x \to a^{-}} f(x) \neq \lim_{x \to a^{+}} f(x)$

Evaluate the one-sided limits.

The left-hand limit

$\lim_{x \to 3^{-} } 9-3x= \lim_{x \to 3^{-} } 9-3*3=0$

The right-hand limit

$\lim_{x \to 3^{+} } x^{2} -x= \lim_{x \to 3^{+} } 3^{2}-3 =6$

Because the limits are not the same the limit does not exist.

8 0

3 years ago

What is the slope of the blue line? what is the slope of the green line?

Ymorist [56]

Answer:

Blue Line’s Slope: -4/2

Green Line’s Slope: -4/2

Step-by-step explanation:

The slope of the line is the rise over run, or in this case the fall over run.

<h2><u>Hope This Helped!</u></h2>

4 0

2 years ago

How many ways can you make a 3-letter arrangement out of the letters in the word TRAPEZOID? This is a (permutation or combinatio

Andrews [41]

Answer:

Permutation

504 ways

Step-by-step explanation:

The difference between combinations and permutations is ordering. With permutations we DO care about the order of the elements, whereas with combinations we don't.

In your graphing calculator, type

nPr(9,3)

(9 letters in trapezoid, 3 letter combos)

and it returns 504.

4 0

3 years ago

Based on the areas of the squares determine whether the triangle shown is a right triangle

Stella [2.4K]

Answer:

The answer is "triangle ABC is not a right triangle".

Step-by-step explanation:

For a right-angle triangle:

Its square upon on longest or triangular edges is equivalent to the total of the other two squares

Its parameters indicated throughout the question are;

Square of lateral length $A = 7 \ inch^2$

The square of lateral length $B = 18 \ inch^2$

The square of lateral length $C=27\ inch^2$

Thus, the longest side is C, as well as the size $inch^2$ of the squares of its two sides, is $7 + 18 = 25 \ inch^2$ , lower than square $C = 27\ inch^2$ , hence, the ABC triangle is not correct. Its longest edge is consequently C.

5 0

2 years ago

How to round off to the neares<br> t degree

lyudmila [28]

Answer:

Step-by-step explanation:

How to round off to the nearest degree

lets pick this number: 3,266.528

first let round to the nearest whole number by thousand

lets remove the .528 because we don’t need it

3,266

4000-3266 is 734

3,266 minus 3000 is 266

so rounded to the nearest thousand in the whole number is 3,000

or let’s say hundredths

3266.528

0.3- 0.28 is 0.3

0.28 - 0.2 is 0.8

so rounded to the nearest hundredth is 3,266.53

hope this helps :)

7 0

2 years ago