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olganol [36]
3 years ago
15

Calculate the percentage increase or decrease in each of

Mathematics
1 answer:
horrorfan [7]3 years ago
5 0

Step-by-step explanation:

hey nidha the answer of ur question

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What is the length of line segment KJ?
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Please consider the attached file.

We can see that triangle JKM is a right triangle, with right angle at M. Segment KM is 6 units and segment MJ is 3 units. We can also see that KJ is hypotenuse of right triangle.

We will use Pythagoras theorem to solve for KJ as:

KJ^2=KM^2+MJ^2

KJ^2=6^2+3^2

KJ^2=36+9

KJ^2=45

Now we will take positive square root on both sides:

\sqrt{KJ^2}=\sqrt{45}

KJ=\sqrt{9\cdot 5}

KJ=3\sqrt{5}

Therefore, the length of line segment KJ is 3\sqrt{5} and option D is the correct choice.

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3 years ago
Use the equation xy= 12.6. Find the value of y when x=7
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Answer: y = 1.8

Step-by-step explanation:

xy = 12.6   If x is 7  but 7  in the equation for x

7y = 12.6   Divide both sides by 7

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In whole milk, 13 parts out of 400 are milk fat. In 2% milk, 1 part out of 50 is milk fat. Which type of milk has more milk fat
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Whole milk because 1 out 50 milk fat is equal to 9 out of 400 milk fat so whole milk has more.
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