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3 years ago

What is the solution to this system of leaner equation 2x + y = 1 3x - y = -6

Mathematics

2 answers:

Georgia [21]3 years ago

7 0

Answer:

{ x,y} = {3,7}

Step-by-step explanation:

scZoUnD [109]3 years ago

5 0

Answer:

Solution :

{x,y} = {3,7}

Step-by-step explanation:

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Write an equation of the line that passes through the given points. (-2,8) and (1, -1)

KIM [24]

/Answer:

Short Answer Type:

P1 - (-2,8)

P2 - (1,1)

Slope: (1 - 8) / (1 + 2)

=> -7/3

Therefore: 1 = -7/3 + c

=> 10/3 = c

<h2>Therefore equation: y = -7x/3 + 10/3 </h2>

6 0

2 years ago

42÷3 using model area

CaHeK987 [17]

Solve 42 -:— 3 using an area model. Draw a number bond and use the distributive property to solve for the unknown length. ' Lesson 20: Solve division problems without remainders using the area model. 4.

8 0

3 years ago

Read 2 more answers

Evaluate the function f\left(x\right)=5x+2\mid11-5x\mid-4f(x)=5x+2∣11−5x∣−4 for x = -5.

Anestetic [448]

Answer:

$f\left(5\right) = 43$

Step-by-step explanation:

Given

$f\left(x\right)=5x+2\mid11-5x\mid-4$

Required

Solve for x = -5

This implies that we substitute -5 for x in $f\left(x\right)=5x+2\mid11-5x\mid-4$

$f\left(5\right)=5(-5)+2\mid11-5(-5)\mid-4$

Open all brackets

$f\left(5\right) = -25+2\mid11+25\mid-4$

$f\left(5\right) = -25+2\mid36\mid-4$

Absolute value of 36 is 36; Wo, we have:

$f\left(5\right) = -25+2*36-4$

$f\left(5\right) = -25+72-4$

$f\left(5\right) = 43$

7 0

2 years ago

Mr. Malone is contemplating which chauffeured car service to take to the airport. The first costs $28 upfront and $2 per mile. T

Ksju [112]

Answer:

The distance is 8 miles.

Step-by-step explanation:

First, we need to write an equation for each of chauffeured car services.

The first one = 28 + 2x = ?

The second one = 13 + 5x = ?

Next, we need to figure out what x is. Usually I just plug in random numbers, but I'm sure there's a better way to do it.

I first plugged in 2 as x.

28 + 4 = 32

13 + 10 = 23

That didn't work, so I then plugged in 5.

28 + 10 = 38

13 + 25 = 38

So 5 would be the correct answer for what is the distance.

8 0

2 years ago

4/7 divided by 1 3/4

poizon [28]

Answer:

16/49

Step-by-step explanation:

4/7 ÷ 1 3/4

Convert 1 3/4 into an improper fraction

4/7 ÷ 7/4

Find the reciprocal of 7/4 and multiply

4/7 * 4/7

16/49

Hope this helps :)

7 0

3 years ago