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Citrus2011 [14]
3 years ago
14

What is -15v-40=23-8v

Mathematics
1 answer:
Alinara [238K]3 years ago
4 0
-15v-40=23-8v
We're trying to isolate the v so...
1) -15v= 63-8v add the 40 on both sides
2) -7v=63 add the 8v on both sides
3) divide -7 on both sides to solve for v
4) v= -9
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To join a local square dancing group, Jan has to pay a $100 sign-up fee plus $25 dollars per month. Write an equation for the co
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Answer:

y = 25x+100

Step-by-step explanation: You are paying 25$ times how many months he stayed there, plus a 100 dollar sign up fee, so y = 25 dollars per month, plus 100 dollars.



4 0
2 years ago
What are 3 ratios that are equivalent to 4/7 Help please
quester [9]

Answer:

8:14, 12:27, 40:70

Step-by-step explanation:

5 0
3 years ago
Emily thinks the perfect tomato sauce has 8 cloves of garlic in every 500{ mL} of sauce. Raphael's tomato sauce has 12 cloves of
igomit [66]

For perfect solution we need to have :-  8 colves   in 500ml    solution

500   ml     has   8 cloves

1 ml             has     8 / 500 cloves

100ml         has   8 / 500  * 100  =    8/5  = 1.6 cloves

Raphael's mixture  

    900 ml  has 12 cloves

      1 ml     has   12 / 900 cloves

   100 ml has   12 / 900 *  100   =    12 / 9  =   1.33 cloves

so concentration of garlic in 100 ml solution of Raphael's solution is less than Emily's solution    so it is not garlicky enough.     ( option B)

5 0
3 years ago
Read 2 more answers
Not sure how to do this, I will give Brainiest for step-by-step instructions.
Mkey [24]
Find 2 coordinates on the graph : (0, -20) and (10, 10)

Slope = (10 - (-20) ) / (10 - 0) = 30/10 = 3

Slope = 3

y-intercept = (0, - 20)

Equation : y = 3x - 20

Since the right hand side is shaded,  the equation is y > 3x - 20.
4 0
3 years ago
What is the radius of a circle whose equation is x 72 y 102 4
almond37 [142]

The circle of the given radius with equation (x-7)²+(y-10)²=4 is 2 units.

<h3>What do we mean by circles?</h3>

A circle is, in the simplest terms, a circular shape without edges or lines.

Its geometric form is that of a closed curve.

If you track a moving point in a plane while keeping a fixed distance from another point, a circle will have a closed shape.

The English word "circle" derives from the Greek word "kirks," which means "hoop" or "ring."

So, the equation for a circle in its standard form is:

(x - h)² + (y - k)² = r²

Where the radius is r and the centroid is (h, k).

The equation is: (x - 7)² + (y - 10)² = 4

This is rewritten as:

(x - 7)² + (y - 10)² = 2²

When compared to the typical form:

(h, k) = (7, 10)

The circle's radius is 2.

Therefore, the circle of the given radius with equation (x-7)²+(y-10)²=4 is 2 units.

Know more about circles here:

brainly.com/question/24375372

#SPJ4

Correct question:
What is the radius of a circle whose equation is (x-7)²+(y-10)²=4?

8 0
1 year ago
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