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IRINA_888 [86]
2 years ago
7

-3x-2+7x=10 please help

Mathematics
2 answers:
ozzi2 years ago
8 0

Answer:

-3

Step-by-step explanation:

-3x-2+7x=10

combine like terms

-3x+7x=10+2

-4x=12

divide

-4x/-4=12/-4

x=-3

Volgvan2 years ago
4 0

Answer:

4x=12<=>x=3

Step-by-step explanation:

-3x+7x=4x

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A pen costs 4.60 Rs. How much will 2 pen cost?
Sav [38]

Answer:

9.20rs

Step-by-step explanation:

4.60*2=9.20

hope this answer helps

8 0
3 years ago
Read 2 more answers
what is an equation of the line that s perpendicullar to y-3=-4(x+2) and passes through the point (-5,7)
Sidana [21]

Answer:

4y=x+33

y=x/4+33/4 (slope-intercept form)

Step-by-step explanation:

y-3 = -4(x+2)

y-3 -4x-8

y= -4x-8+3

y= -4x-5

m1 = -4

For perpendicularity

m2= -1/-4 = 1/4

The equation is

y-y1 = m2(x-x1)

y-7 = 1/4(x-(-5))

y-7 = x/4+5/4

Multiply through by 4

4y-28=x+5

4y=x+5+28

4y=x+33

Divide through by 4

y=x/4+33/4 (slope-intercept form)

7 0
3 years ago
Plz help me with this
lutik1710 [3]
This is the answer:)

5 0
3 years ago
PLEASE HELP!!! PLEASE SHOW ALL OF YOUR WORK!!!
Elza [17]
The answer is c bc I just know
8 0
2 years ago
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The endpoints of are A(2, 2) and B(3, 8). is dilated by a scale factor of 3.5 with the origin as the center of dilation to give
goldfiish [28.3K]

Answer:

The given line segment whose end points are A(2,2) and B(3,8).

Distance AB is given by distance formula , which is

if we have to find distance between two points (a,b) and (p,q) is

=  \sqrt{(p-a)^2+(q-b)^2}

AB= \sqrt{(3-2)^2+(8-2)^2}=\sqrt{1+36}=\sqrt{37} = 6.08 (approx)

Line segment AB is dilated by a factor of 3.5 to get New line segment CD.

Coordinate of C = (3.5 ×2, 3.5×2)= (7,7)

Coordinate of D = (3.5×3, 3.5×8)=(10.5,28)

CD = AB × 3.5

CD = √37× 3.5

     = 6.08 × 3.5

= 21.28 unit(approx)

2. Slope of line joining two points (p,q) and (a,b) is given by

m=\frac{q-b}{p-a}

m= \frac{8-2}{3-2}=6

As the two lines are coincident , so their slopes are equal.

Slope of line AB=Slope of line CD = 6




6 0
3 years ago
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