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horrorfan [7]
3 years ago
6

Simplify: 9(1 - r) + 3r

Mathematics
2 answers:
Butoxors [25]3 years ago
4 0

Answer:

hdudhryhrgrhdidbf7hs6he8hs6jw9wg5gssi

MA_775_DIABLO [31]3 years ago
4 0

Step-by-step explanation:

9 - 9r + 3r

9 - 6r

For finding the value of r

9 = - 6r

9/ - 6 = r

3 / - 2 = r

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Eighty percent of the tickets for the baseball game on july 4th been sold. there are 20,000 tickets. how many been sold
Viktor [21]
16000 tickets have been sold.

Glad I could help :)
6 0
2 years ago
Solve for x using<br> cross multiplication<br> 2x + 1 = x+5<br> 2x + 1<br> 3<br> x = [?]
jonny [76]
<h2>x = 13</h2>

Step-by-step explanation:

\frac{2x + 1}{3}  =  \frac{x + 5}{2}  \\ 2(2x + 1) = 3(x + 5) \\  \:  \:  \:  \: 4x + 2 = 3x + 15 \\ 4x - 3x = 15 - 2 \:  \\  \:  \:  \: x = 13

8 0
3 years ago
If m(x) = x2 + 3 and n(x) = 5x + 9, which expression is equivalent to (mn)(x)?
Romashka [77]
(x^2 +3)(5x+9)

5x^3 + 9x^2 + 15x + 27
3 0
3 years ago
I have 45 cents in nickels.
pentagon [3]

Answer:

135

Step-by-step explanation:

43 times 3 is 135

5 0
3 years ago
Help!!!! I really need help with this I don’t understand it!!!
Temka [501]

9514 1404 393

Answer:

  y = 5

Step-by-step explanation:

There are a number of ways to get there, but the short of it is that a horizontal line has the equation ...

  y = constant

The constant value must be chosen to match the y-value of points on the line. Here, that is 5. The equation of the line is ...

  y = 5

_____

<em>Another way</em>

You can write the equation in slope-intercept form if you know the slope and the y-intercept. The line crosses the y-axis at y = 5, so that is the value of the y-intercept.

The "rise" between the two points is 5 -5 = 0. The "run" between the two points is 5-0 = 5, so the slope is ...

  m = rise/run = 0/5 = 0

Then the slope-intercept equation is ...

  y = mx + b . . . . . where m is the slope and b is the y-intercept

  y = 0x +5

Simplifying, we get ...

  y = 5

6 0
2 years ago
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