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inysia [295]
3 years ago
15

What is the simplified form of 24r − 3(2r − 5t) − 4t?

Mathematics
2 answers:
Alex17521 [72]3 years ago
4 0
-3(2r-5t)=-6r+15t
24r-6r+15t-4t=
18r+11t is the simplified form
kherson [118]3 years ago
4 0

For this case we have the following expression:

24r - 3 (2r - 5t) - 4t

Applying the distributive property we have:

24r - 3 * 2r + 3 * 5t - 4t

Rewriting we have:

24r - 6r + 15t - 4t

By algebraically adding terms with the same variable we have:

18r + 11t

Answer:

The simplified expression for this case is given by:

18r + 11t

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Gilda walks to the train station. If she walks at the rate of 3 mph, she misses her train by 7 minutes. However, if she walks at
lorasvet [3.4K]
We'll represent the distance as d and the time as t. 
d= 3(t+7)            because Gilda is 7 minutes late when travelling 3 mph
d= 4(t-5)             because Gilda is 5 minutes early at 4 mph

d= 3t + 21
d= 4t -20
3t +21 =4t -20
41=t
d= 3(41) +21= 144
The distance is 144 miles. 
7 0
2 years ago
Read 2 more answers
Find the length of AB and AC. please help...
Dmitry_Shevchenko [17]

Answer:

AB=30

AC=22.5

Step-by-step explanation:

8/15=12/x

x=22.5 (AC)

8/15=16/x

x=30 (AB)

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3 years ago
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sergejj [24]

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Step-by-step explanation:

3 0
2 years ago
Which function has the same y-intercept as the function?<br>​
rosijanka [135]

Answer:

6x -7y = 21

Step-by-step explanation:

The y-intercept of a line is the y value when x = 0. In the equation y = \frac23 x -3 \\, we can solve for its equation when we plug in x = 0.

Solving for y when x = 0:

y = \frac23 x -3 \\ y = \frac23 (0) -3 \\ y = -3.

So the y-intercept of the equation y = \frac23 x -3 \\ is -3.

To find what equation has the same y-intercept, we can do the same process for each equations given by the choices. However, I can see that the equation, 6x -7y = 21, has the y-intercept. If in doubt, you can check for the solution below or solve each equations for yourself.

Solving for y when x = 0:

6x -7y = 21 \\ 6(0) -7y = 21 \\ 0 -7y = 21 \\ -7y = 21 \\ \frac{-7y}{-7} = \frac{21}{-7} \\ y = -3

8 0
2 years ago
What is the distance between the coordinates (8,-5) and (8,13).
Darina [25.2K]

Answer:

18

Step-by-step explanation:

use the distance forumla to detwemine the distance between the points.

7 0
2 years ago
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