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Pani-rosa [81]
3 years ago
5

Find the LCM and HCF of 64 and 72 using prime factors​

Mathematics
2 answers:
Harrizon [31]3 years ago
5 0

Answer:

8x8 and 8x9

Step-by-step explanation:

because 8x8 is 64 and 8x9 is 72

Nadya [2.5K]3 years ago
4 0

What is the LCM of 64 and 72?

Find the prime factorization of 64.

Find the prime factorization of 72. 72 = 2 × 2 × 2 × 3 × 3.

Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM: LCM = 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3.

LCM = 576.

What is the GCF of 64 and 72?

Find the prime factorization of 64. 64 = 2 × 2 × 2 × 2 × 2 × 2.

Find the prime factorization of 72. 72 = 2 × 2 × 2 × 3 × 3.

To find the GCF, multiply all the prime factors common to both numbers: Therefore, GCF = 2 × 2 × 2.

GCF = 8.

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Please answer me write a statement that why isnt 6.5 / 0.5 = 3.25
REY [17]

Answer:

13

Step-by-step explanation:

It's not 3.25 because if you simplify 6.5 and 0.5, you get 65 and 5 which if you divide is 13.

4 0
2 years ago
The radius of a circle is 3 inches . What is the circumference of the circle ?
Vlada [557]

Answer:

Option C

Step-by-step explanation:

Circumference of a circle is:

C=2\pi r

r - radius

We are given the radius of 3 inches.

C=2\pi r\\\\C=2(3)\pi \\\\C=\boxed{6\pi }

Option C should be the correct answer.

Hope this helps!

3 0
3 years ago
Yesterday, there were 80 problems assigned for math homework. Jenna did 45% of them correctly. How many problems did Jenna get r
seraphim [82]

Answer:

36 questions was answered correctly

Step-by-step explanation:

80 x .45 = 36

Hope this helps

Have a great day :D

5 0
3 years ago
SOMEONE HELP!!!!!!!!!!!!!!!!!!!! I would give more points but there are people who just write random things for an answers that
Nata [24]

Answer:

a)  320 is correct

b)  20 more 18 year old students

Step-by-step explanation:

a)  320 is correct

b)  20 more 18 year old students:  The only information we have in the 25 - 35 minute time frame is the data for 30 minutes:

12 years: 40 students

18 years:  60 students

Difference = 20 more 18 year old students than 12 year old students spent spent time on social media for 25 - 35 seconds.

8 0
2 years ago
You ran the race at a rate of 13 minutes per mile, what is the rate in feet per minute?
bazaltina [42]

Answer:

406.153846 or about 406 feet per minute

Step-by-step explanation:

Start by converting the 13 minutes per mile to feet per minute by turning the mile into 5,280 feet. So you run 5,280 feet in 13 minutes. Then you divide 5,280 by 13 so you get the amount of feet  per minute, hence about 406 feet per minute.

I didn't know if you needed an exact answer or to round so I gave you both :)

4 0
3 years ago
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