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
3241004551 [841]
3 years ago
5

I need help on 78 and 79

Mathematics
1 answer:
Orlov [11]3 years ago
3 0

There are 15 pencils altogether. Of these, 4 are green. Thus, P(green) = 4/15.


3+6

There are 3 red and 6 blue pencils. Thus, P(red or blue) = --------- = 3/5

15

You might be interested in
What is the surface area in square inches of a cube with a side 7 inches long? HEL0 QUICK​
nekit [7.7K]

Answer: a = 294 square inches

Use the formula: A = 6a^2

6 0
3 years ago
Read 2 more answers
If you have 6 donuts and they cost 2.70 what is the cost for one donut
Lilit [14]

Answer:

<h2>0.45 </h2><h2 />

Step-by-step explanation:

<u>   2.70    </u>

6 donuts

= 0.45 each donut

8 0
3 years ago
Read 2 more answers
3 equivalent ratios for 1/10
nataly862011 [7]

Answer:

So just as a fraction of 3/30 can be simplified to 1/10, a ratio of 3:30 (or 4:40, 5:50, 6:60 and so on) can be simplified to 1:10.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
2.25k - 20 = 6.5k + 14<br><br><br> plsssssssssssss
Pani-rosa [81]

Answer:

k=-8

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

3 0
3 years ago
Read 2 more answers
How do you simplify this
Dafna11 [192]

Top:

x / (x + 1) - 1 / x

= [x^2 - (x +1)] / x(x+1)

= (x^2 - x - 1 ) / x (x+1)

Bottom:

x / (x + 1) + 1 / x

= [x^2 + (x +1)] / x(x+1)

= (x^2 + x + 1 ) / x (x+1)

Now you have:

(x^2 - x - 1 ) / x (x+1)

----------------------------

(x^2 + x + 1 ) / x (x+1)

= (x^2 - x - 1 ) / x (x+1) * x (x+1) / (x^2 + x + 1 )

= (x^2 - x - 1 ) /(x^2 + x + 1 )

Answer:

x^2 - x - 1

---------------------

x^2 + x + 1

7 0
3 years ago
Other questions:
  • A shoe repairman is working with his assistant, who takes 1.5 times as long to repair a pair of shoes. Together they can fix 20
    6·2 answers
  • How would you round the number 33 and. 89 to estimate their sum
    9·1 answer
  • Find an equation of a plane containing the line r = ⟨−5, 1, 0⟩ + t ⟨7, −8, 4⟩ which is parallel to the plane 4x + 1y −5z = −24.
    5·1 answer
  • How to find 1% of 520
    13·1 answer
  • Students are asked to memorize a list of 100 words. The students are given periodic quizzes to see how many words they have memo
    5·1 answer
  • HELP PICTURE IS SHOWN
    15·1 answer
  • Please help I’ll give brainliest
    6·1 answer
  • Is the expression 3 (xx+1 1/2)- 3 equivalent to 3x+ 1 1/2?
    14·2 answers
  • Find the volume. Use 3.14 for straight pi. Round to the nearest hundredth if necessary.
    6·1 answer
  • Hellpppppppoopppppppp
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!