Solve the system of equations.What is x and y


−2x+15y=−24
2x+9y=24

Answers

Answer 1
Answer:

−2x+15y=−24

2x+9y=24

Add the two equations together.

-2x +2x = 0

15y + 9y = 24y

-24+24 = 0

The two equations when added become:

24y = 0

Solve for y:

divide both sides by 24:

y = 0/24 = 0

The value of Y is 0

Now replace Y in one of the equations and solve for x:

2x+9(0) = 24

2x + 0 = 24

2x = 24

Divide both sides by 2:

x = 24/2

x = 12.

The value of x is 12

The solution is (12,0)

Answer 2
Answer:

Answer:

The solution is ( x , y ) = ( 12 , 0 )

Step-by-step explanation:

[ Refer to the attachment ]


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Rewrite 0.8 as a fraction in simplest form.

Answers

Answer: 8/10

Step-by-step explanation: Using the place value chart, we can see that 0.8 means eight-tenths which can be written as the fraction 8/10. Since 8/10 is not in lowest terms, we need to divide both the numerator and denominator by the greatest common factor of 8 and 10 which is 2 to get 4/5.

Therefore, 0.8 can be written as the fraction 8/10.

The decimal number 0.8 in the simplest fraction form will be 4/5.

A fraction number is a number that represents the part of the whole, where the whole can be any number. It is in the form of a numerator and a denominator.

The decimal number is given below:

⇒ 0.8

Multiply and divide the expression by 10. Then we have

⇒ 0.8 x 10 / 10

⇒ 8 / 10

⇒ 4 / 5

More about the fraction number link is given below.

brainly.com/question/78672

#SPJ6

Change these fractions into percentages 7/10, 2/5, 1/3, 17/20

Answers

Change them into fractions over 100, and the numerator will be the percentage.

7/10 = 70/100 = 70%

2/5 = 40/100 = 40%

1/3 = 33.33/100 = 33.33%

17/20 = 85/100 = 85%
percent means parts out of 100 so
exg 23/100=23%

just convert the bottom number to 100
7/10 times 10/10=70/100=70%

2/5 times 20/20=40/100=40%

1/3 times 33.333/33.333=33.3333/99.999 close enought 33.33%

17/20 times 5/5=85/100=85%

Write 8.542 in expanded form.

Answers

Answer:

if you like my solution

please give me Brainliest.

Set P = (2, 3, 5, 5, 6) Set Q = (1, 2, 3, 4)If m is randomly selected from Set P and n randomly selected from Set Q, what is the probability that mn is an even integer?


3/4

11/16

9/16

1/4

3/16​

Answers

Answer:

Therefore, the correct answer is 9/16.

Step-by-step explanation:

To determine the probability that mn is an even integer, we need to consider the possible values of m and n.

Set P contains the elements (2, 3, 5, 5, 6), and set Q contains the elements (1, 2, 3, 4).

For mn to be an even integer, either m or n must be an even number.

In set P, there are two even numbers (2 and 6) out of a total of five elements. So, the probability of selecting an even number from set P is 2/5.

In set Q, there are two even numbers (2 and 4) out of a total of four elements. So, the probability of selecting an even number from set Q is 2/4 or 1/2.

To find the probability that mn is an even integer, we can consider the two cases:

If m is even and n is any number:

The probability of m being even from set P is 2/5, and the probability of n being any number from set Q is 1 (since any number can be selected from set Q). Therefore, the probability of mn being even in this case is (2/5) * 1 = 2/5.

If m is any number and n is even:

The probability of m being any number from set P is 1 (since any number can be selected from set P), and the probability of n being even from set Q is 1/2. Therefore, the probability of mn being even in this case is 1 * (1/2) = 1/2.

We can add these two probabilities to find the overall probability that mn is an even integer:

Probability = (2/5) + (1/2) = 4/10 + 5/10 = 9/10.

Therefore, the correct answer is 9/16.

What is the average per day?

Answers

To get the average in this case, divide 30 by 5:

30 hrs ÷ 5 days = 6 hrs/day
To get averages you have to divide the total number of units by the period of time/how many things there are. So in this case you divide 30 by 5 and get 6

Given the triangle below, which of the following is a correct statement?A. csc right triangle B right triangle equals fraction 3 over 2
B. csc right triangle C right triangle equals fraction 3 over 2
C. csc right triangle B right triangle equals fraction 6 over 5
D. csc right triangle C right triangle equals fraction 5 over 6

Answers

Can you send a picture of the triangle. Maybe take a screen shot?