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ad-work [718]
3 years ago
9

25% of the student's in Mrs.Brown's class like chocolate ice cream. How many students are in her class if 6 students like chocol

ate ice cream?
Mathematics
2 answers:
Katen [24]3 years ago
7 0

Answer:

24 students.

Step-by-step explanation:

25% is 1/4 of 100.

6*4= The number of students.

Taya2010 [7]3 years ago
7 0

Answer:

24

Step-by-step explanation:

Let the number of students be A

Given 25% of the students A in mrs Brown’s class like chocolate ice cream and 6 students like chocolate ice cream

Therefore

25% of A = 6

That’s

25%/100% x A = 6

0.25 x A = 6

Divide both sides by 0.25

0.25/0.25 x A = 6/0.25

A = 24

There are 24 students in her class

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arsen [322]
C
pls dont get mad if its wrong
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3 years ago
(a) Tom says that 1/5 + 7/20 = 8/25
mezya [45]

numerator = top part of the fraction

denominator = bottom part of the fraction

* means multiply

a.

you can only add the numerator when the denominator is the same

cant add the denominator

denominator has to be the same

1/5 = 4/20

4/20 + 7/20 = 11/20

b.

1 7/8 = 15/8

3/4 ÷ 15/8 =

3/4 * 8/15 =

24/60 = divide both top and bottom by 12 =

2/5

7 0
3 years ago
Read 2 more answers
What does the graph of 4 < n + 6 < 9 look like? A. open circles around –2 and 3 and the line shaded to the left of 3, infi
iren2701 [21]

Answer:

C.

Explanation:

I did maths :b

3 0
3 years ago
Find all points on the circle (x^2) + (y^2) = 676 where the slope is 5/12
borishaifa [10]
Implicit defferentation

remember that dy/dx y= dy/dx


so
take derivitive of both sides
2x+2y \space\ \frac{dy}{dx}=0
solve for \frac{dy}{dx}
minus 2x both sides
2y \space\ \frac{dy}{dx}=-2x
divide both sides by 2y
\frac{dy}{dx}=\frac{-2x}{2y}
\frac{dy}{dx}=\frac{-x}{y}

when is the slope equal to \frac{5}{12}
solve for \frac{dy}{dx}=\frac{5}{12}
\frac{dy}{dx}=\frac{5}{12}
\frac{5}{12}=\frac{-x}{y}
5y=-12x
y=\frac{-12}{5}x
find where the circle and this line intersects

substitute \frac{-12}{5}x for y
x^2+(\frac{-12}{5}x)^2=676
x^2+\frac{144}{25}x^2=676
\frac{25}{25}x^2+\frac{144}{25}x^2=676
\frac{169}{25}x^2=676
times both sides by \frac{25}{169}
x^2=100
sqrt both sides, take positive and negative roots
x=+/-10

sub back

y=\frac{-12}{5}x
y=(\frac{-12}{5})(10) \space\ or \space\ (\frac{-12}{5})(-10)
y=\frac{-120}{5} \space\ or \space\ \frac{120}{5}
y=-24 \space\ or \space\ 24

the points are (10,-24) and (-10,24)
8 0
3 years ago
Solve for x and not to scale
sergij07 [2.7K]

Answer:

x = 90

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are in proportion, that is

\frac{BC}{NE} = \frac{AB}{TN} , substitute values

\frac{3}{27} = \frac{10}{x} ( cross- multiply )

3x = 270 ( divide both sides by 3 )

x = 90

6 0
3 years ago
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