1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
AVprozaik [17]
3 years ago
8

7r+3r-8=8+2r. Solve?

Mathematics
2 answers:
Mazyrski [523]3 years ago
4 0

Given: 7r+3r-8=8+2r

Simplify: 10r-8=8+2r

Addition: add 8 to each side: 10r=16+2r

Subtraction: Take 2r from each side: 8r=16

Division: Divide each side by 8 for answer: r=2

Answer: r=2



umka21 [38]3 years ago
4 0

7r+3r-8=8+2r\\\\10r-8=8+2r\ \ \ \ |+8\\\\10r=16+2r\ \ \ \ |-2r\\\\8r=16\ \ \ \ |:8\\\\\boxed{r=2}

You might be interested in
-3 + (-5) would it be negative seven
alina1380 [7]
You do add the two negatives and get a negative answer but -3 + -5 = -8
6 0
3 years ago
Read 2 more answers
I NEED HELP WITH THIS ASAP PLEASE!
sdas [7]
(x+1)(x+2)
this is what i got hope it helps
5 0
2 years ago
A spinner is divided into two equal parts, one red and one blue. The set of possible outcomes when the spinner is spun twice is
Hunter-Best [27]

A 2-column table that has 3 rows. The first column is labeled x with entries 0, 1, 2. The second column is labeled P x (x) with entries 0. 25, 0. 5, 0. 25.

<h3>What is Probability?</h3>

The probability helps us to know the chances of an event occurring.

\rm{Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}

We know about the probability, therefore, let's find the probability of each of the cases.

When the number of success of the spinner landing on blue is none, therefore, the spinner does not land on the blue color at all.

\rm{Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}

Now, as it is given that there is only one case when the spinner does not land on the blue side(RR) in the set, S = {RR, RB, BR, BB}. therefore,

\rm{Probability(X=0)=\dfrac{1}{4} = 0.25

When the number of success of the spinner landing on blue is just once, therefore, the spinner does land on the blue color only once out of the two spin.

\rm{Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}

Now, as it is given that there are two cases when the spinner does land on the blue side(RB, BR) in the set, S = {RR, RB, BR, BB}. therefore,

\rm{Probability(X=1)=\dfrac{2}{4} = 0.25

When the number of success of the spinner landing on blue is twice, therefore, the spinner does land on the blue color both the times the spinner is spun.

\rm{Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}

Now, as it is given that there is only one case when the spinner does land on the blue side twice(BB) in the set, S = {RR, RB, BR, BB}. therefore,

\rm{Probability=\dfrac{1}{4} = 0.25

Now, if we draw the table of the data and the probability we will get the following table,

x             P(X)

0           0.25

1            0.50

2           0.25

Hence, the table that is correct is table A, which is  A 2-column table that has 3 rows. The first column is labeled x with entries 0, 1, 2. The second column is labeled P x (x) with entries 0. 25, 0. 5, 0. 25.

Learn more about Probability:

brainly.com/question/795909

8 0
2 years ago
Mary is making pillows for her Life Skills class. She bought 2 1/2 yards of fabric. Her total cost was $15. What was the cost pe
dexar [7]
Cost of 2 1/2 yards= $15
cost of  1 yard=?
cost of one yard= 15/(2 1/2)
=15/5/2
=15/5*2
=3*2
=$ 6
so the cost of fabric for one yard will be $6
5 0
3 years ago
5. Michael makes lemonade using a ratio of 10 cups of water to 1 cup of lemon juice. Which equation could
Alenkasestr [34]

Answer:

A and is michael michael reeves

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Please help. I will give brainliest(:
    11·2 answers
  • The area of an oil spill is doubling in size every day. At the start of the day on May 1, the oil spill covers 20 square meters.
    10·1 answer
  • Find the value of this expression if x = -1 and<br> y=7.<br> Xy / 8
    8·1 answer
  • Nash has completed 215 meters of the 400 meters running track. how many more meters was Nash run to finish running around the tr
    11·1 answer
  • 30=(500)(3%)(T)<br> What Is T?
    8·2 answers
  • What is 4 and 2/5 multiplied by 16.5
    11·1 answer
  • a radio transmission is 515 feet tall. a guy wire is to be attached (6)feet from the top and is to make an angle of 22 degree wi
    11·1 answer
  • Help pls<br> 4 1/5 of 8 2/10 is what number ?
    15·2 answers
  • After 4 minutes of reading, Aaron was on page 14 of his book. After 8 minutes he was on page 20. Which equation models the page
    11·1 answer
  • Are the two sets equivalent? C={4,6,3,2,1}, D={3,2,6,1,4}.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!