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Reika [66]
2 years ago
7

Solve the formula for the indicated variable rx + ry = 4 for r

Mathematics
1 answer:
pishuonlain [190]2 years ago
3 0

Answer:

r =   4/(x+y)

Step-by-step explanation:

rx + ry = 4

Factor out r

r ( x+y) = 4

Divide each side by (x+y)

r ( x+y) /(x+y) = 4/(x+y)

r =   4/(x+y)

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–5(v + 65) = -65 v = ____
labwork [276]

Answer:

v = -52

Step-by-step explanation:

Divide both sides by -5

v + 65 = 13

v = 13 - 65

v = -52

4 0
3 years ago
Read 2 more answers
The line with x-intercept of 10 and y-<br> intercept of -2.
Yuri [45]

Answer:

y = \frac{1}{5} x - 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ = x- intercept (10, 0) and (x₂, y₂ ) = y- intercept (0, - 2)

m = \frac{-2-0}{0-10} = \frac{-2}{-10} = \frac{1}{5}

The y- intercept c = - 2

y = \frac{1}{5} x - 2 ← equation of line

8 0
2 years ago
Develop a probability model <br> for the spinner shown.​
Tatiana [17]

Answer:

Step-by-step explanation:

3 0
2 years ago
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Which table of ordered pairs represents a proportional relationship?
Anna11 [10]

Answer: a

Step-by-step explanation: i took the test

6 0
2 years ago
How many 3-digit even numbers are that begin with either 5 or 6?
mojhsa [17]
Answer: 100 3 digit even number that begin with either 5 or 6

Explanation:
Case 1:
A 3 digit that begin with 5 should be 500-599 so there are 100 numbers
But we are only finding even number
So 100/2 = 50 3-digit even number that begin with 5.

Case 2:
A 3 digit that begin 6 should have
600-699 and there are also 100 number including even and odd in total. Since we are only finding even number we get:
100/2 = 50 3-digit even number that begin with 6.

Plus both case together we get 50 3-digit even number that begin with 5 + 50 3-digit even number that begin with 6= 50 + 50 = 100
8 0
3 years ago
Read 2 more answers
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