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valentinak56 [21]
2 years ago
9

Calculate the missing angle, given: angle B = 28 degrees angle C = 42 degrees

Mathematics
1 answer:
Alexxx [7]2 years ago
6 0

Answer:  110

Explanation:

I'm assuming this is for a triangle. The three interior angles always add to 180.

A+B+C = 180

A+28+42 = 180

A+70 = 180

A = 180-70

A = 110

The missing angle is 110 degrees

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Conditional Probability Assistance?
krek1111 [17]

Let the event A=\{ Sophomore \}, B=\{ Boy \}

The the probability of the events

P(A \cap B)=\frac{5}{12+18} =\frac{1}{6}

P( B)=\frac{12}{12+18} =\frac{2}{5}

The conditional probability

P(Sophomore|Boy)=P(A|B)=\frac{P(A \cap B)}{P(B)} =\frac{1/6}{2/5} =\frac{5}{12}

5 0
4 years ago
Can someone please help me? I need an answer as quickly as possible?
REY [17]
Angle Z is greater than angle Y.

I hope this helps you! I'm not the best at this kind of stuff!
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5 0
4 years ago
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a total of 326 adult and student tickets were sold prices for tickets were $8. adults and $5, for students ticket money collecte
Troyanec [42]

Answer:

212 student tickets

Step-by-step explanation:

I am assuming that this is what you meant:

Total of tickets sold= 326

Price of an adult ticket= $8

Price of a student ticket= $5

Total amount if money (student & adult) collected= $1972

Please see the attached pictures for full solution.

6 0
3 years ago
At a grocery store, 7 apples and 2 oranges will cost $12.80. In addition, 6 apples and 3
Pachacha [2.7K]

Answer:

Equation 1: 7x + 2y = 12.8

Equation 2: 6x + 3y = 12

Cost of 1 apple: $1.60

Cost of 1 orange: $0.80

Cost of 1 orange: $Step-by-step explanation:

Let's use the elimination method to solve this

Multiply equation 1 by 3

(7x + 2y = 12.8) x 3 = 21x + 6y = 38.4

Multiply equation 2 by -2

(6x + 3y = 12) x -2 = -12x - 6y = -24

The x terms will cancel each other out

21x + 6y = 38.4

-12x - 6y = -24

9x = 14.4

Divide by sides by 9 to isolate the x variable

9x/9 = 14.4/9

x = 1.6

This means an apple costs $1.60

Plug the new x into one of the original equations to find y; we'll use equation 1

7(1.6) + 2y = 12.8

11.2 + 2y = 12.8

Subtract 11.2 from both sides

11.2 + 2y = 12.8

- 11.2        - 11.2

2y = 1.6

Divide both sides by 2

2y/2 = 1.6/2

y = 0.8

This means an orange costs $0.80

4 0
3 years ago
9c + 1 = 10 <br><br>whats the answer..? ​
stepladder [879]

Answer:

c = 1

Step-by-step explanation:

9 x 1 + 1 = 10

Hope this helps!

5 0
3 years ago
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