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Alborosie
3 years ago
14

Please help me with all of them

Mathematics
2 answers:
kaheart [24]3 years ago
3 0

Answer:

Question 6 is 1/6

Question 5 is 5/9

Question 7 is 1/15

Question 8 is 3/20

Question 4 is 1/30

irakobra [83]3 years ago
3 0
Question 6= 1/6 this is an easy explanation ask if you need me to explain why
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Mr. See weights his grades. Tests are worth 60%, quizzes are worth 25% and homework is 15%. Joey's test average is an 82, his qu
goldenfox [79]

Answer:

83.15

Step-by-step explanation:

Joey's current grade can be determined by weighting his scores with the weights given and adding the results

Tests = 0.6 x 82 = 49.2

Quizzes = 0.25 x 77 = 19.25

homework = 0.15 x 98 = 14.7

49.2 + 19.25 + 14.7 = 83.15

4 0
2 years ago
What is the vertex on a<br> right angle
Pachacha [2.7K]

The vertex would be the point on the right angle like the tip of the right angle

6 0
3 years ago
How to do this problem
lisabon 2012 [21]
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3 0
2 years ago
Read 2 more answers
More evaluation questions.....SIGH.
White raven [17]
Answer: 53

Steps:
Multiply to do 1/2x64+21
Reduce the numbers to get 32+21
Add to get 53!
4 0
3 years ago
Read 2 more answers
Solve the system by substitution.
Butoxors [25]

<u>Answer:</u>

The solution set of given equations -x-y-z = -8 and - 4x + 4y + 5z = 7 and 2x + 2z = 4  is (3, 6, -1)

<u>Solution:</u>

Given, set linear equations are

-x – y – z = -8 ⇒ x + y + z = 8 → (1)

-4x + 4y + 5z = 7 ⇒ 4x – 4y – 5z = -7 → (2)

2x + 2z = 4 ⇒ x + z = 2 → (3)

We have to solve the above given equations using substitution method.

Now take (3), x + z = 2 ⇒ x = 2 – z  

So substitute x value in (1)  

(1) ⇒ (2 – z) + y + z = 8 ⇒ 2 + y + z – z = 8 ⇒ y + 0 = 8 – 2 ⇒ y = 6.

Now substitute x and y values in (2)

(2) ⇒ 4(2 – z) – 4(6) – 5z = - 7 ⇒ 8 – 4z – 24 – 5z = -7 ⇒ -9z – 16 = -7 ⇒ 9z = 7 – 16 ⇒ 9z = -9 ⇒ z = -1

Now substitute z value in (3)

(3) ⇒ x – 1 = 2 ⇒ x = 2 + 1 ⇒ x = 3

Hence, the solution set of given equations is (3, 6, -1).

4 0
3 years ago
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