All categories

3 years ago

Use the substitution methed to solve the system of equations. Choose the correct ordered pair.

Mathematics

1 answer:

sertanlavr [38]3 years ago

6 0

Solve both equations for 2y :

2y + 5x = 13 ==> 2y = 13 - 5x

2y + 3x = 5 ==> 2y = 5 - 3x

Solve for x :

13 - 5x = 5 - 3x

8 = 2x

x = 4

Solve for y :

2y = 13 - 5×4

2y = -7

y = -7/2

As an ordered pair, the solution is then the point (x, y) = (4, -7/2).

You might be interested in

What’s does 5x6 equal?

AveGali [126]

Answer:

Step-by-step explanation:

5+5+5+5+5+5 =

5 0

4 years ago

Read 2 more answers

The product of 60 and 4000 is

svlad2 [7]

Answer:

The product of 60 and 4000 is 240,000

Step-by-step explanation:

If you are asked to work out the product of two or more numbers, then you need to multiply the numbers together.

7 0

3 years ago

Read 2 more answers

Dean says that 13% is greater than 0.1 Is Dean correct? Give a reason for your answer.

Vladimir [108]

Yes, Dean is correct.

13% = 13/100 = 0.13

0.1 = 0.10

0.13 is greater than 0.10.

7 0

3 years ago

Read 2 more answers

Evaluate: <img src="https://tex.z-dn.net/?f=32%5E%7B-%20%5Cfrac%7B2%7D%7B5%7D%20%7D%20%3Cbr%3E%3Cbr%3E%3Cbr%3E%3Cbr%3E%3Cbr%

shutvik [7]

$32^{- \frac{2}{5} } = ( \frac{1}{32}) ^{ \frac{2}{5} } = ( \frac{1}{32} )^{ \frac{1}{5} *2} = [ ( \frac{1}{32}) ^{ \frac{1}{5} } ]^{2} = ( \sqrt[5]{ \frac{1}{32} } ) ^{2} = ( \sqrt[5]{ \frac{1}{2}* \frac{1}{2} * \frac{1}{2} * \frac{1}{2} * \frac{1}{2} } )^{2}$ = $( \frac{1}{2} )^{2} answer$

the notebook
 $(32)^{- \frac{2}{5} } = ( \sqrt[5]{ \frac{1}{32} } )^{2} = ( \frac{1}{2} )^{2} = \frac{1}{4}$

3 0

3 years ago

What is the wave speed of a wave that has a frequency of 200 Hz and a wavelength of 0.40 m?

marusya05 [52]

Answer:

Speed = 80 m/s

Step-by-step explanation:

The formula to find the speed of a wave is found by

Speed = Wavelength x Frequency where the frequency is in HZ and the wavelength is in meters

Speed = 200 * .40

Speed = 80 m/s

7 0

3 years ago

Read 2 more answers