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puteri [66]
2 years ago
11

LCM. Problem about how lcm works. picture in comments.

Mathematics
1 answer:
Ket [755]2 years ago
4 0
I can’t find a picture but i can explain how to find the LCM of two numbers.

Let’s say we want to find the LCM of 10 and 12.
We first write the prime factorization of both numbers:
10= 2x5

12= 2*2*3

We multiply the highest degree of the numbers:
That is, 2*2*3*5=60

https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-factors-and-multiples/cc-6th-lcm/v/least-common-multiple-exercise

You can also watch this video to get a better idea on how to find the LCM of two or more numbers.

Hope this helped.
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Evaluate.<br> PLEASE HELP QUICK!
Alinara [238K]

Answer:

54

Step-by-step explanation:

4^3-4/2*5

4^3=64

64-4/2*5

-4/2=-2

64-2*5

-2*5=-10

64-10=54

Parenthesis

Exponent

Multiply or Divide (whichever comes first)

Add or Subtract (whichever comes first)

Hope this helps

5 0
2 years ago
The half life of silicone-32 is 710 years. If 30 grams is present now, how much will be present in 300 years?
Irina18 [472]

Answer:

22.38 g of silicone-32 will be present in 300 years.

Step-by-step explanation:

A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay and its given by

                                           N(t)=N_0(\frac{1}{2})^{\frac{t}{t_{1/2}}

where,

N(t) = quantity of the substance remaining

N_0 = initial quantity of the substance

t = time elapsed

t_{1/2} = half life of the substance

From the information given we know:

  • The initial quantity of silicone-32 is 30 g.
  • The time elapsed is 300 years.
  • The half life of silicone-32 is 710 years.

So, to find the quantity of silicone-32 remaining we apply the above equation

N(t)=30\left(\frac{1}{2}\right)^{\frac{300}{710}}=30\left(\frac{1}{2}\right)^{\frac{30}{71}}\approx22.38 \:g

22.38 g of silicone-32 will be present in 300 years.

7 0
3 years ago
How do you rewrite y-3=4(x-5) turn into Slope Intercept Form
marissa [1.9K]

Answer:

20

Step-by-step explanation:

cause when you do 3=4 equals 4 then multiply 5 then you have 20

6 0
3 years ago
if a store offers a 20% discount, and the regular price of an item is x dollars, what is the discount price?
Virty [35]
The discount price is .80x or 1-.20x.
3 0
2 years ago
Simplify the variable expression by evaluating its numerical part 4 * 7 * n
Ad libitum [116K]
We can multiply the 4 and 7 together.
28 * n
3 0
3 years ago
Read 2 more answers
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