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ozzi
4 years ago
6

The average test score of three students in a class is 81 percentage points. if one student's score goes up by 2 percentage poin

ts, one student's score goes up by 4 percentage points, and the other student's score remains the same, what will the new average test score be
Mathematics
1 answer:
ehidna [41]4 years ago
3 0

To the find average of the test scores, we need to find the mean.

To find the mean, all we need to do is add up all the numbers and then divide the answer by how many numbers there are

81 + 83 + 85 = 249

249 ÷ 3 = 83

Therefore, the new average is 83

Hope this helps

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3 years ago
PLEASE HELP ASAP<br> Finding angles!!
vagabundo [1.1K]

Answer:

Angle 1: 115

Angle 2: 65

Angle 3: 115

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Angle 7: 115

Step-by-step explanation:

Find the value of angle 2 by applying the vertical angles theorem (65)

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Find the value of angle 3 by applying the vertical angles theorem from angle 1 (115)

Angles 4, 5, 6, and 7 are on a line parallel to the orginal line, cut by the same transversal, so they have the same values, according to the same side interior/exterior angles theorems.

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3 years ago
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sweet [91]

Answer:

3/4

Step-by-step explanation:

tan theta = opposite side/ adjacent side

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8 0
3 years ago
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Sonbull [250]

Answer:

3.2 × 10²

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4 0
3 years ago
Can I get some help? Thanks!
vivado [14]

Answer:

C: y=11x

Step-by-step explanation:

11x2=22

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