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Irina-Kira [14]
3 years ago
14

Find the solution to the system of equations-2 + 2y = -4 3x + 3y = -18

Mathematics
2 answers:
choli [55]3 years ago
8 0

Answer:

x = -2 and y = -4

Step-by-step explanation:

use elimination or subatitution method

AfilCa [17]3 years ago
4 0

Answer:

\boxed{x = -2~~and~~ y = -4}

Step-by-step explanation:

-2x + 2y = -4 (times 3) -6x + 6y = -12

3x + 3y = -18 (times 2) 6x + 6y = -36

.

-6x + 6y = -12

<u>6x + 6y = -36 </u>+

12y = -48

y = \frac{-48}{12}

y = -4

.

Substitute the value of y to the one of equations

-2x + 2(-4) = -4

-2x - 8 = -4

-2x = -4 + 8

-2x = 4

x = \frac{4}{-2}

x = -2

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Mr.James has a cylindrical beakers that measure 4 inches in diameter and are 9 inches high .What is the volume contained within
Minchanka [31]

if its diameter is 4 inches, then its radius is half that, or 2 inches.


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8 0
3 years ago
Edna is fishing from a small boat. A fish swimming at the same depth as the hook at the end of her fishing line is 12 feet away
sergeinik [125]

Answer:

  16 feet

Step-by-step explanation:

The geometry of the problem can be modeled by a right triangle. The Pythagorean theorem tells us the relationship between the various distances.

  EH² +HF² = EF²

  EH² + 12² = 20²

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The hook is 16 feet below Edna.

8 0
2 years ago
Read 2 more answers
The tax on a bike is $22.75. If the rate is 6.5%, how much was the original price of the bike?
Vedmedyk [2.9K]

Answer:

The tax on a bike is $22.75. If the rate is 6.5%, how much was the original price of the bike?

x = Price of bike

6.5% * x = 22.75
   flip it
x = 22.75 / 6.5%

x = 350

Step-by-step explanation:

5 0
2 years ago
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Answer this plsss <br> I need it now
ehidna [41]
A) angle 1 and angle 8
b) angle 3 and angle 6
c) angle 3 and angle 7
6 0
3 years ago
7 times as much as the sum of 1/3 and 4/5
LenKa [72]
1.86 is your answer
1/3*4/5=4/15
4/14*7/1=28/15
28/15=1.86
Your answer is 1.86

Hope this helps.
7 0
4 years ago
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