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3 years ago

When do you get an answer to a system of linear equations that has one solution, no solution and infinitely many solutions?

Mathematics

1 answer:

meriva3 years ago

6 0

Answer:

Step-by-step explanation:

One solution: when two lines intersect in exactly one point.

Infinitely many solutions: When one of two lines can be shown algebraically to be exactly the same as the other. The two lines coincide.

No solution: The two lines have the same slope but different y -intercepts. They can't and don't intersect.

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Please help, seriously confused

Rufina [12.5K]

Original height = original width = x mm

1. She made an enlarged copy...
height = 2x
width = 2x

2. She cut off a rectangle...
height = 2x
width = $\frac{2}{3} *2x= \frac{4}{3}x$

3.She doubled the width...
height = 2x
width = $2*\frac{4}{3}x = \frac{8}{3}x$

height * width = area

$2x * \frac{8}{3}x=139 \ 968 \\ \\ \frac{16}{3}x^2= 139 \ 968 \\\\ x^2=139 \ 968: \frac{16}{3}=139 \ 968 * \frac{3}{16}= 8 \ 748*3 = 26 \ 244 \\ \\ x= \sqrt{26 \ 244} = 162 \ mm$

Original height was 162 mm

6 0

3 years ago

I’m the parallelogram above, what is the value of x+y Help please

olga2289 [7]

Answer:

248°

Step-by-step explanation:

y = 180°- 56°

= 124°

x = 124° because opposite angles of a parallelogram are equal

x + y = 124° + 124°

= 248°

6 0

2 years ago

Read 2 more answers

A store pays $24 for a jewelry box and marks the price up by 20%. What is the amount of

Ratling [72]

Answer:

$4.8

Step-by-step explanation:

$24×20/100=$4.8

7 0

3 years ago

Sylvie finds the solution to the system of equations by graphing. y = x + 1 and y = x – 1 Which graph shows the solution to Sylv

sesenic [268]

Hey user☺☺

The graph will have no solution.

Hope it works

6 0

3 years ago

Read 2 more answers

I need help plz! asap

nikdorinn [45]

Answer:

B) 30

Step-by-step explanation:

too get a % of somthing all you need to do is convert 60% to a decimal .6 * 50 = 30

5 0

3 years ago