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I am Lyosha [343]
4 years ago
10

A first number plus twice a second number is 9. Twice the first number plus the second totals 27. Find the numbers

Mathematics
1 answer:
SOVA2 [1]4 years ago
6 0
Create a a system of 2 equations: 2x + y = 27 and 2y + x = 9, with x being the first number and y being the second. solve for the two variables and you'll get the first number is 15 and the second is -3.
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A circle with a radius of 9 millimeters.
andriy [413]

Answer:

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Step-by-step explanation:

7 0
3 years ago
Which of the following correctly uses absolute value to show the distance between -80 and 15?
SSSSS [86.1K]

Answer:

C

Step-by-step explanation:

|-80 - 15| = 95

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8 0
2 years ago
Please help!!
Marysya12 [62]

The LCD of 3 and 4 is 12. To make 4 into 12, we multiply it by three, so 3 would also have to be multiply by 3, turning 3/4 into 9/12.

The same thing applies to 1/3, only it needs to be multiplied by 4. So it would become 4/12

9/12 - 4/12 = 5/12

4 0
3 years ago
Read 2 more answers
The sum of three odd consecutive numbers is fifty-one. What are the numbers?
Fantom [35]

Answer:

15,17,19

Step-by-step explanation:

Make an equation : x+(x+2)+(x+4)=51

Solve the equation:3x+6=51

3x=51-6

3x=45

x=15

Since x=15 then the second number is 17 and then 19

Hope this helps!

Stay Safe

7 0
3 years ago
Please help me need help me please please help me
Reil [10]

9514 1404 393

Answer:

  (3)  y = (x -3)²

Step-by-step explanation:

Try the first value of x in each function:

  (1)  y = 3² -3 ≠ 0

  (2)  y = (3 +3)² ≠ 0

  (3)  y = (3 -3)² = 0 . . . . . . matches the table value for f(3)

  (4)  y = 3² +3 ≠ 0

__

The only viable choice is (3).

5 0
3 years ago
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