All categories

3 years ago

<br />How do I solve 2x+y=10

Mathematics

2 answers:

ololo11 [35]3 years ago

7 0

X is 3 y is 4 hope this helps :)

ira [324]3 years ago

4 0

Hello :
the system is :
2x+y =10 ...(1)
x= 3y+4.....(2)
subst in (1) :
2(3y+4) + y = 10
6y +8 + y= 10
7y=2
y= 2/7
x= 3(2/7)+4 = 34/7

You might be interested in

17) Convert the number to scientific notation 0.00317

Masteriza [31]

Answer:

3.17x10^-3

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the

10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

6 0

3 years ago

The sum of the angle measures of any triangle is 180 degrees. Angle 2 is twice the measure of angle 1. Angle 3 is 15 degrees les

allochka39001 [22]

Answer:

Angle 1 = 39, Angle 2 = 78 , Angle 3 = 63

Step-by-step explanation:

78/2 = 39

(Angle 2/2 = Angle 1)

78 - 15 = 63

(Angle 2 - 15 = Angle 3)

39 + 78 + 63 = 180

(Angle 1 + Angle 2 + Angle 3 = 180)

7 0

3 years ago

Read 2 more answers

X-intercept and y-intercepts og y=x^2-3

Rufina [12.5K]

Answer:

Part 1) The y-intercept is the point $(0,-3)$

Part 2) The x-intercepts are the points $(-\sqrt{3},0)\ and\ (\sqrt{3},0)$

Step-by-step explanation:

we have

$y=x^{2}-3$

This is a vertical parabola open upward

step 1

Find the y-intercept

we know that

The y-intercept is the value of y when the value of x is equal to zero

For x=0

$y=(0)^{2}-3$

$y=-3$

The y-intercept is the point (0,-3)

step 2

Find the x-intercepts

we know that

The x-intercept is the value of x when the value of y is equal to zero

For y=0

$x^{2}-3=0$

solve for x

Adds 3 both sides

$x^{2}-3+3=0+3$

$x^{2}=3$

take square root both sides

$x=(+/-)\sqrt{3}$

The x-intercepts are the points $(-\sqrt{3},0)\ and\ (\sqrt{3},0)$

3 0

2 years ago

6 of 8

Masja [62]

Answer:

$\frac{19}{4}$

Step-by-step explanation:

$\frac{5 + 4 + 6 + 6 + 5 + 5 + 4 + 3}{8}$

=38/8

=19/4

4 0

2 years ago

Read 2 more answers

Is 50 the correct answer

Zolol [24]

yes, 50 is the correct answer

8 0

3 years ago

Read 2 more answers