All categories

3 years ago

Check graphically whether the pair of equations 2x-y=1 and x+2y=3 is consistent if so solve them graphically

Mathematics

1 answer:

muminat3 years ago

6 0

Answer:

A(1,1)

Step-by-step explanation:

the system is :

2x-y=1

x+2y=3

so :

y = 2x-1 .....the line color : red

y= (-1/2)x+3/2......the line color : blue

the pair solution is the intersection point for this line : A(1 ; 1)

You might be interested in

The circumference of a circular field is 241.78 yards. What is the radius of the field? Use 3.14 for it and do not round your an

Elena-2011 [213]

Answer:

38.5 yards

Step-by-step explanation:

The circumference is the diameter multiplied by pi, and the radius is half of the diameter. If we divide 241.37 by pi we get a diameter of 77, and half of that is the radius, which is 38.5.

5 0

3 years ago

Samantha correctly answered 36 out of 48 questions on a test. She must score 70% or greater to pass the test. Did she pass?

lys-0071 [83]

Answer:

Yes

Step-by-step explanation:

You see that you need a percentage. You are given the amount that she got wrong, assuming the questions are weighted the same, you divide 36 by 48. This gives you .75. Then you multiply .75 by 100% giving you 75%.

8 0

3 years ago

What is the slope of a line parallel to (y=-3x-6)?

EleoNora [17]

Y equals 4x-2 that is my awnser

4 0

3 years ago

Simplify the expression √-288

Shtirlitz [24]

Answer:

It is given as √288 = √2 × 144. 144 is a perfect square of 12.

3 0

3 years ago

During summer, when the snow melts, the water level of the Yukon River increases. If the water level of the river increased by 7

kondaur [170]

Answer:

13 centimeters per day.

Step-by-step explanation:

We have been given that during summer, the water level of the river increased by 78 centimeters in 6 days. We are asked to find the water level increase rate in centimeters per day.

To find the water level increase rate per day, we will divide total increase by total days as:

$\text{Water level increase rate per day}=\frac{78\text{ cm}}{6\text{ days}}$

$\text{Water level increase rate per day}=\frac{13\text{ cm}}{\text{ day}}$

Therefore, the water level increase rate is 13 centimeters per day.

5 0

3 years ago