All categories

2 years ago

Solve the equation to get the value y

Mathematics

2 answers:

tia_tia [17]2 years ago

5 0

Answer:

y=11

x=-4

Step-by-step explanation:

y =-x+7

2x-5y=-7

insert the first equation into the second like so...

2x+5x-35=-7

Now rearrange...

2x+5x=-7+35

Now solve...

7x=-28

x=-4

Now incert x in any equation...

y=4+7

y=11

yarga [219]2 years ago

4 0

Y=11
X=-4
Did this exact question

You might be interested in

How much time is it from 8:00 am to 11:25 am?

Trava [24]

Answer: 3 hours 25 mins.

8 0

2 years ago

Read 2 more answers

If the line formed by equation 1 is parallel to the line formed by equation 2, fill in the missing value below.

madreJ [45]

Answer:

$y =-\frac{3}{2}x + 6$

Step-by-step explanation:

Given

$y = []x + 6$ --- equation 1

$y = \frac{2}{3}x + 10$ --- equation 2

Required

Fill in the blank

A linear equation is represented as:

$y = mx + b$

Where m represents the slope

If (1) and (2) are perpendicular, then:

$m_1 = -\frac{1}{m_2}$

In $y = \frac{2}{3}x + 10$ --- equation 2

$m_2 = \frac{2}{3}$

So, we have:

$m_1 = -\frac{1}{m_2}$

$m_1 = -\frac{1}{2/3}$

$m_1 = -\frac{3}{2}$

Hence, the complete equation is:

$y =-\frac{3}{2}x + 6$

7 0

3 years ago

How do you do it tell me step it step please

Alborosie

The steps for dividing fractions are:
Keep
Flip
Change
As in, keep the first fraction the same (we can write 7 as 7/1 to make it a fraction), flip the second fraction upside down, and then change the division symbol to a multiplication symbol. This gives you:
7/1 × 5/6
And to multiply fractions, you multiply across, which means that you do (7 × 5 = 35)/(1 × 6 = 6). Your answer, therefore, is 35/6, or, as a mixed number, 5 5/6. I hope this helps!

5 0

3 years ago

The angle between a 180-pound force F and AB= 5i + 2j is 30.Find the work done by F in moving and object from A to B.

Alexeev081 [22]

Answer:

$W=839.464\ ft*lbf$

Step-by-step explanation:

The work done is the product of the magnitude of the force applied to the object by the magnitude of the displacement of the object by the cosine of the angle between the force and direction of the displacement. This is:

$W=|F|*|r|cos(\theta)$