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kkurt [141]
3 years ago
13

There are 450 students in the 9th and 10th grade taking geometry, and 1/3 of them are 9th graders

Mathematics
2 answers:
Llana [10]3 years ago
6 0

Answer: <u><em>No. of students in 9th grade = 150 </em></u>

<u><em>No. of students in 10th grade = 300</em></u>

Step-by-step explanation: Total No. of Students = 450

∴No. of students in 9th grade = 1/3 of 450

I.e. = 1/3 × 450 = 150 students in 9th grade.

<em>Let the No. of students in 10th grade be 'x'</em>

x = 450 - 150 = 300 students in 10th grade.

∴No. of Students in 9th grade = 150 students

∴No. of Students in 10th grade = 300 students

algol133 years ago
5 0
There are 150 9th graders and 300 10th graders
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Answer:

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Step-by-step explanation:

we know that

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so

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where

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<u><em>Verify each case</em></u>

case 1) we have

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substitute in the formula

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324=250 ----> is not true

therefore

Sean cannot make a right triangle with this set of lengths

case 2) we have

{6 cm, 12 cm, 16 cm}

substitute in the formula

16^2=8^2+12^2

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case 3) we have

{5 cm, 13 cm, 15 cm}

substitute in the formula

15^2=5^2+13^2

225=194 ----> is not true

therefore

Sean cannot make a right triangle with this set of lengths

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{8 cm, 15 cm, 17 cm}

substitute in the formula

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289=289 ----> is true

therefore

Sean can make a right triangle with this set of lengths

6 0
2 years ago
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7 0
3 years ago
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