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
Mashutka [201]
3 years ago
10

Use the least commom denominator of 10 and 15 to solve 2/10+ 7/15

Mathematics
1 answer:
Juli2301 [7.4K]3 years ago
6 0
The least common denominator of 10 and 15 is 30. It's easiest to use trial and error to find the LCD. In this case, just multiply both numbers by 2 and see if that works. Since 15 doesn't go into 20, I tried multiplying 15 by 2  instead, and got 30, which is divisible by 2. If that doesn't work, move on to multiplying them by 3, then 4 four, and so on. However, in this case, it did work, so, since you multiplied 15 by two to get 30, multiply 7 by two to get the fraction 14/30. Then, since you multiplied 10 by 3 to get 30, multiply 2 by 3 to get 6/30. Then, add the two together to get 20/30 and simplify the fraction to 2/3. 

2/10 + 7/15   Given.
6/30 + 14/30   LCD.
20/30   Add.
2/3   Simplify.
You might be interested in
A six-sided number cube labeled 1 through 6 is rolled 500 times. An odd number is rolled 325 times. Compare the experimental pro
Komok [63]
The actual probability of having odd is 3/6=1/2
so no of odds theoretically is 250

but it is 325
so, experimental is higher than theoretical
so answer is B !
and you can go for that !
5 0
3 years ago
Read 2 more answers
Which irrational number is closest to the number 5?
blsea [12.9K]

Answer:

I believe it is right by looking at this picture, but I am not certain

7 0
3 years ago
What’s the correct answer
laila [671]
C. 502

All you need to do is multiply the number if sales by the percentage in decimal form. Using DPR I know that 11% is equal to 0.11, so 4,560(0.11) is 501.60. That can be rounded to 502 sales that were shirts.

4 0
2 years ago
Indicate all possible values for the variable in each of the expressions: sqrt(2x+2)+sqrt(6-4x)
IrinaK [193]

Answer:

<u>Given expression:</u>

  • \sqrt{2x+2}+\sqrt{6-4x}

<u>The first root is valid when:</u>

  • 2x + 2 ≥ 0 ⇒ 2x ≥ - 2 ⇒ x ≥ - 1

<u>The second root is valid when:</u>

  • 6 - 4x ≥ 0 ⇒ 4x ≤ 6 ⇒ x ≤ 1.5

<u>So the variable x can get values within interval:</u>

  • -1 ≤ x ≤ 1.5 or
  • x = [-1, 1.5]
3 0
2 years ago
Am i correct i chose c but i might think is wrong (valid answer only!!)
hoa [83]

Answer:

You are absolutely correct!

Step-by-step explanation:

The correct answer is C!

Hope this helps you realize!

8 0
2 years ago
Other questions:
  • Use the grouping method to factor x3 + x2 + 2x + 2.
    5·2 answers
  • Please answer this in two minutes
    5·1 answer
  • Guys help please!!!!!
    12·1 answer
  • Goran needs to drive 14 miles to work. so far, he has driven 2.2 miles. how many more miles must he drive?
    6·1 answer
  • Evaluate 8x when x = 3.12​
    15·1 answer
  • Henry can fold 80 take-out pizza boxes every 40 minutes. How long will it take for him to fold 120 boxes?
    6·2 answers
  • 6+3+4*0<br><br> Sup yall I'm bo.red so ask me anything and i will answer truthfully
    12·2 answers
  • Please help me<br><br> no random links pls
    10·1 answer
  • Directions: Using trig functions, find the value of each variable. Write your final answer
    11·1 answer
  • If B is the midpoint of AC, AB = x + 6, and AC = 5x - 6,<br> then what is BC?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!