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Dmitry_Shevchenko [17]
4 years ago
7

Solve the equation for r C=(r+k)m

Mathematics
1 answer:
alexira [117]4 years ago
7 0

Answer:

r = c -km÷m

Step-by-step explanation:

C=( r+k) m (multiple the m with the letters in the brackets)

rm + km= c (cross the km over the equal sign and it will be a negative)

rm= c- km (then divide everything by my)

rm÷m = c - km÷ m

r = c- km÷ m

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PreCalc work, Need help with writing piece wise functions with graphs level 2. Giving branliest.
Natalija [7]

The piece-wise linear functions can be written as follows:

  • f(x) = -0.5x + 3, x < 5.
  • f(x) = -5, x = 5
  • f(x) = -x  + 9, x > 5.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

For x less than 5, the y-intercept is of b = 3 and the function also gos through (2,2), hence the slope is:

m = (2 - 3)/(2 - 0) = -0.5.

Hence the rule is:

f(x) = -0.5x + 3, x < 5.

When x = 5, the function is constant at -5, hence:

f(x) = -5, x = 5

For x less than 5, the function goes through points (6,3) and (7,2), hence the slope is:

m = (2 - 3)/(7 - 6) = -1.

Then:

y = -x + b

When x = 6, y = 3, hence the y-intercept is given as follows:

3 = -6 + b

b = 9.

Hence the rule is:

f(x) = -x  + 9, x > 5.

More can be learned about linear functions at brainly.com/question/25537936

#SPJ1

3 0
2 years ago
Solve problems <br>5 1/2×3 1/3​
makvit [3.9K]
5 1/2 X 3 1/3=18 1/3
6 0
3 years ago
Find the coordinate of the midpoint of the segment with the given endpoints -7 and 8
Pachacha [2.7K]

Answer:

<em>The coordinate of the midpoint is 1/2</em>

Step-by-step explanation:

<u>Midpoint</u>

The midpoint of a segment defined in a one-dimension system is

\displaystyle \bar x=\frac{x_1+x_2}{2}

Where x1 and x2 are the coordinates of the points.

The given segment has endpoints x1=-7 and x2=8, thus:

\displaystyle \bar x=\frac{-7+8}{2}

\displaystyle \bar x=\frac{1}{2}

The coordinate of the midpoint is 1/2

5 0
4 years ago
Can someone help me out please
lbvjy [14]
16 is the answer jxhsjcjaks
5 0
3 years ago
PWEASE help me (7th grade math work) will mark as a Brainliest and pls show work
pav-90 [236]

Answer:

<h2>15%</h2><h2></h2>

Step-by-step explanation:

this week sold = $2,760

last week sold = $2,400

the difference from this week to last week = 2700-2400 = 360

that means it increased : 360 / 2400 = 0.15 (100%) = 15%

therefore, the increase of sale is 15%

6 0
3 years ago
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