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Nostrana [21]
2 years ago
9

How do you write y=mx+b for this equation 21-y-mx=34

Mathematics
1 answer:
SashulF [63]2 years ago
6 0

Answer:

y = -mx - 13.

Step-by-step explanation:

21-y-mx=34

Add y to both sides

21 - mx = 34 + y

Subtract 34 from both sides

-13 - mx = y

Rearrange:

y = -mx - 13.

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7(y+3)=5y+8<br> Is this <br> A.Solution<br> B.No Solution<br> C. Infinite Solution
faust18 [17]

First, let's use the Distributive Property to make our equation easier to solve. Remember that the Distributive Property says the following:

a(b + c) = ab + ac


Using this, we can multiply the 7 out to the y and 3. This gives us:

7y + 21 = 5y + 8


Now, let's solve for y:

2y + 21 = 8

2y = -13

y = - \dfrac{13}{2}


We can see that there is one solution for this equation because y is equal to one definite value after solving. Thus, our answer is A, one solution.  

3 0
4 years ago
Which is the correct algebraic expression after combining like terms? 6+8x-7-x
Anarel [89]

Answer:

7x -1 is correct after combining like terms

Step-by-step explanation:

6+8x-7-x

To simplify algebraic expression we combine like terms

In the given expression

-x  or -1x  are same

8x  and -1x  are like terms

6 and -7 are also like terms

8x-1x= 7x

6 - 7 = -1

So 7x -1 is correct after combining like terms

3 0
3 years ago
write an equation in slope-intercept form for the line that satisfies each set of conditions. passes through (4,-10), parallel t
dolphi86 [110]

Answer:

y + 10 = 7/8(x - 4)

or

y = 7/8x -27/2

Step-by-step explanation:

Parallel lines have the same slope. This enables that they never cross. The slope of the line y = 7/8x - 3 is 7/8. So the slope of the parallel line is also 7/8.

Substitute m = 7/8 and (4,-10) into the point slope form of the line:

y - -10 = 7/8 (x - 4)

y + 10 = 7/8(x - 4)

Simplify to get the equation in y = mx+b.

y + 10 = 7/8 x - 28/8

y + 10 = 7/8x -7/2

y = 7/8x -27/2

4 0
4 years ago
A boy is mowing a rectangular lawn 40ft long and 30ft wide. He has cut all of it except for a rectangle that is 20ft long and 15
sergejj [24]

Answer:

1/4

Step-by-step explanation:

Find the area of the full rectangle:

=> 40 x 30 = 1200

Find the area of the uncut part:

=> 20 x 15

=> 300

Make these numbers as a fraction.

=> 300 / 1200

=> 3/12

=> 1/4

So, 1/4 part remains uncut.

7 0
3 years ago
Read 2 more answers
A helicopter hovers 1450 feet above a small island. The figure shows that the angle of depression from the helicopter to point P
puteri [66]

Answer:

1668 feet.

Step-by-step explanation:

We know the opposite side of the right triangle and we need the adjacent side, so we use the tangent function.

If the distance required is x  (adj side) we have:

tan 41 = opp/adj

tan 41 = 1450/x

x = 1450 / tan 41

= 1668.03

5 0
3 years ago
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