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iogann1982 [59]
3 years ago
14

Angela’s average for six math tests is 87. On her first four tests she had scores of 93, 87, 82, and 86. On her last test, she s

cored 4 points lower than she did on her fifth test. What scores did Angela receive on her fifth and sixth tests?
Mathematics
2 answers:
iragen [17]3 years ago
8 0

total points for the 6 tests would be 6 *87 = 522

total points of 1st 4 are: 93 + 87 +82 +86 = 348

522 - 348 = 174 points for 5th and 6th tests

174-4 = 170

170/2 = 85

85 +4 = 89

5th test was 89

6th test was 85

azamat3 years ago
8 0
<span>93+  87+ 82+ 86 = 348
</span><span>
Angela’s average for six math tests is 87 so 87(6) = 522
</span><span>
522 - 348 = 174

</span>On her last test, she scored 4 points lower than she did on her fifth test.
<span>lets x = her fifth test
last test = x - 4

x + x - 4 = 174
2x = 178
  x = 89

answer
Her fifth test = 89
Last test = 89 - 4 = 85




</span>
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Answer and Step-by-step explanation:

These are the statements that make the question complete:

A. If the base is 24 feet from the wall, the ladder reaches 45 feet up the wall.

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D. If the base is 14 feet from the wall, the ladder reaches 48 feet up the wall.

Since the ladder leans against a wall, a right angle triangle is formed. Since the ladder is now slant, then it's length becomes the hypothenuse.

The correct statements can be gotten through Pythagoras theorem which says:

A² + B² = C² where C is the hypothenuse and A and B are the other two sides.

Since the hypothenuse is 50, we can test each statement by taking the square of the two sides and add them up, if they are equal to 50² = 2500, then the statement is true.

A. 24² + 45² = 576 + 2025 = 2601 ≠ 2500, therefore it is false.

B. 30² + 40² = 900 + 1600 = 2500, therefore it is true.

C. 27² + 44² = 729 + 1936 = 2665 ≠ 2500, therefore it is false

D. 14² + 48² = 196 + 2304 = 2500, therefore it is true.

From here, statements B and D are true while the rest are all false.

7 0
3 years ago
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Answer:

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80% + P( not arrive) = 100%    Substitute thr ralees

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therefor, the probability of not arriving on time is:-

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<u>--------------------------------</u>

<u>hope it helps..</u>

<u>have a great day!</u>

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