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alexgriva [62]
4 years ago
5

Enter your answer in the box. Be sure to enter your answer as an ordered pair (x,y). Meaning, put your answer in parenthesis.

Mathematics
1 answer:
vitfil [10]4 years ago
3 0

Answer:

The solution of the system of equation are (10,15).

Step-by-step explanation:

The given two linear two variable equations are  

- x - 2y = - 40 ........ (1) and  

x + 4y = 70 .......... (2)

Now,adding thoes two equations (1) and (2) we get,

- 2y + 4y = - 40 + 70

⇒ 2y = 30

⇒ y = 15.

Now, putting y = 15 in the equation (2), we get,

x = 70 - 4y = 70 - 4(15) = 10

Therefore, the solution of the system of equation are (10,15). (Answer)

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For this item, any answers that are not whole numbers should be entered as a decimal, rounded to the tenths place. Brian's schoo
blsea [12.9K]

Answer:

  1. The probability that the locker code begins with a prime number is 40%.
  2. The probability that the last digit of the locker code is an odd number is 40%

Step-by-step explanation:

  1. Prime numbers are the numbers that only divide with 1 or itself. So in this case it is 5 and 7.

The possible combinations are

1*4*3 (with 5) +  1*4*3(with 7) = 24

Total combinations are 5*4*3=60

(24/60)*100 = 40 %

     2. Odd numbers are those which don't divide with 2. So in this case it is 6 and 8.

The possible combinations are

1*4*3 (with 6) +  1*4*3(with 8) = 24

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(24/60)*100 = 40 %





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4 years ago
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3 years ago
1. Write the equation that models the height of the roller coaster. Start by writing the equation of the circle. (Recall that th
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Answer:

a.)x² + y² = 900

b.)y = √900 - x²

Step-by-step explanation:

P.S - The exact equation is as follows :

As given,

The shape of the roller coaster is a half of a circle. Center the circle at the origin and assume the highest point on this leg of the roller coaster is 30 feet above the ground.

a.)

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