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Phoenix [80]
1 year ago
13

Evaluate 5(x - 1) - 2 when x = 3

Mathematics
1 answer:
Elan Coil [88]1 year ago
4 0

Answer:

8

Step-by-step explanation:

Given algebraic expression:

5(x - 1) - 2

To:

Evaluate this expression using x = 3

Solution:

  • 5(x - 1) - 2

Evaluate by plugging x = 3 to this expression:

  • 5(3-1)-2

Simplify using PEMDAS.

  • 5(2)-2
  • 10-2
  • 8

<u>We can conclude:</u>

By evaluating x = 3 to the given expression,the answer will be 8.

You might be interested in
An animal gained 5 kilograms steadily over 25 years. What is the unit rate of kilograms per​ year?
zalisa [80]

Answer:

0.2kg

Step-by-step explanation:

5/25 = 0.2 which is the rate of kg per year

5 0
1 year ago
Select the equation that contains the point (4, -8), and in which the graph of the line has a positive slope.
BaLLatris [955]
Okay, let me just make this a little clearer. Hopefully, this is what you meant:

A. y - 8 = -4(x + 4)
B. y - 8 = 4(x + 4)
C. y + 8 = 4(x - 4)
D. y + 8 = -4(x - 4)

--

This can also be written as y2 - y1 = m(x2 - x1).

Your M is your slope. 

Both A and D have their m as a negative 4. Because you are looking for a positive slope, immediately cancel those answers.

* note that you could have also put them in a more standard form and discovered m which is the x in bx. 

Now, you are looking for an equation that contains (4,-8).

Because it is written as y2-y1, your y's are actually points if you were to find another slope or something. This part is a bit hard to explain, but -8 is only found in the y coordinate place in answer B. Your answer would be B. For more explanation on that, there's this great site called coolmath.com and if you search for finding the equation of two points, it explains it much better on there, but I would not want to plagiarize. 

The answer is B.


5 0
2 years ago
3. 24 +13
Elodia [21]

Answer:

37

Step-by-step explanation:

??!?!?!?!?!?! don't know what'cha mean

5 0
2 years ago
Given:  m∠p =47BD∥AC <br> What is the m∠m?<br><br> Put only the number. Do not label your answer.
Anettt [7]

Answer: 43\°

Step-by-step explanation:

Observe the given figure.

You can identify that the measure of the angle "B" is:

m\angle B=90\°

Knowing this, you can conclude that the angle "p" and the angle "m" are Complementary angles, which means that the sum of their measures is 90 degrees. Then, you can write the following equation:

m\angle p+m\angle m=90\°   [Equation 1]

You know that:

m\angle p=47\°

Then you can substitute it into the [Equation 1] and then solve for m\angle m. Therefore, you get:

 47\°+m\angle m=90\°\\\\m\angle m=90\°-47\°\\\\m\angle m=43\°

3 0
3 years ago
Ratio of cupcakes to muffins at a bakery is 6:5 the total is 99. how many cupcakes
sleet_krkn [62]
6+5 = 11

99/11 = 9

9x6 = 54

so 54 cupcakes

Hope this helps, and May the Force Be With You!

-Jabba
8 0
3 years ago
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