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Darya [45]
4 years ago
13

at one scholl at prep level there were 5 set of twins,two sets of triplets and one set of quadruplets starting school this year.

what fraction of those students was just one of those children
Mathematics
1 answer:
katen-ka-za [31]4 years ago
3 0

Answer:  Fraction of twins = \frac{5}{8} Fractions of triplets = \frac{1}{4} Fractions of quadruplets = \frac{1}{8}

Step-by-step explanation:

Since we have given that

Number of set of twins = 5

Number of sets of triplets = 2

Number of sets of quadruplets = 1

Total number of sets is given by

5+2+1=8

Now, we need to find the fraction of those students.

So, Fraction of twins is given by

\frac{5}{8}

Fractions of triplets is given by

\frac{2}{8}=\frac{1}{4}

Fractions of quadruplets is given by

\frac{1}{8}

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Wanda has eaten 25 of the 28 grapes in her bowl, so she is 25/28 of the way to finishing her snack. Which statement best describ
laiz [17]
<h2>Explanation:</h2><h2 />

No statement provided, so I could help you in a general way. Here we know that Wanda has eaten 25 of the 28 grapes. In other words, we can define this as follows:

\text{Total number of grapes}=28 \\ \\ \text{Number of grapes she ate}=25

So we can write this as a percentage form as follows:

\% \ \text{Grapes eaten}=\frac{25}{28}\times 100 = 89.28\%

So <em>an statement that is true is that Wanda has eaten almost 90% of the grapes.</em>

4 0
3 years ago
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xenn [34]
They are similar. Both isosceles triangles
8 0
3 years ago
In right △ABC, the altitude CH to the hypotenuse AB intersects angle bisector AL in point D. Find the sides of △ABC if AD = 8 cm
tangare [24]

Answer:

AC=8\sqrt{3}\ cm\\ \\AB=16\sqrt{3}\ cm\\ \\BC=24\ cm

Step-by-step explanation:

Consider right triangle ADH ( it is right triangle, because CH is the altitude). In this triangle, the hypotenuse AD = 8 cm and the leg DH = 4 cm. If the leg is half of the hypotenuse, then the opposite to this leg angle is equal to 30°.

By the Pythagorean theorem,

AD^2=AH^2+DH^2\\ \\8^2=AH^2+4^2\\ \\AH^2=64-16=48\\ \\AH=\sqrt{48}=4\sqrt{3}\ cm

AL is angle A bisector, then angle A is 60°. Use the angle's bisector property:

\dfrac{CA}{CD}=\dfrac{AH}{HD}\\ \\\dfrac{CA}{CD}=\dfrac{4\sqrt{3}}{4}=\sqrt{3}\Rightarrow CA=\sqrt{3}CD

Consider right triangle CAH.By the Pythagorean theorem,

CA^2=CH^2+AH^2\\ \\(\sqrt{3}CD)^2=(CD+4)^2+(4\sqrt{3})^2\\ \\3CD^2=CD^2+8CD+16+48\\ \\2CD^2-8CD-64=0\\ \\CD^2-4CD-32=0\\ \\D=(-4)^2-4\cdot 1\cdot (-32)=16+128=144\\ \\CD_{1,2}=\dfrac{-(-4)\pm\sqrt{144}}{2\cdot 1}=\dfrac{4\pm 12}{2}=-4,\ 8

The length cannot be negative, so CD=8 cm and

CA=\sqrt{3}CD=8\sqrt{3}\ cm

In right triangle ABC, angle B = 90° - 60° = 30°, leg AC is opposite to 30°, and the hypotenuse AB is twice the leg AC. Hence,

AB=2CA=16\sqrt{3}\ cm

By the Pythagorean theorem,

BC^2=AB^2-AC^2\\ \\BC^2=(16\sqrt{3})^2-(8\sqrt{3})^2=256\cdot 3-64\cdot 3=576\\ \\BC=24\ cm

3 0
3 years ago
HELP!!! 50 POINTS!! I WILL REPORT IMPROPER ANSWERS!!!
lapo4ka [179]

Answer & Explanation:

1.) Which function is a linear function?

   The answer is B. y+7=5x

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5 0
3 years ago
Help with both questions please
Igoryamba
For the first question the answer is the second option.
For the second question the answer is the first option.

Hope I didn't mess up for your sake
5 0
4 years ago
Read 2 more answers
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