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MrRa [10]
3 years ago
13

Find the greatest common factor of 6 and 15. a. 6 b. 3 c. 4 d. 2

Mathematics
2 answers:
Olin [163]3 years ago
8 0

Answer:

3

Step-by-step explanation:

Greatest common factor (GCF) of 6 and 15 is 3. We will now calculate the prime factors of 6 and 15, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6 and 15.

Hope this helps

hjlf3 years ago
6 0

Answer:3

Step-by-step explanation:

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Yin has 3 blue shirts. 10% of her shirts are blue. Liang has 1.5 times as many shirts as Yin has. How many shirts does Liang hav
Gelneren [198K]
3 = 10%
15 = 50%
30 = 100%

30 * 1.5 = 45
Liang has D.) 45 shirts
8 0
3 years ago
What is 469.82 plus 8.5 sales tax
alekssr [168]
Hey!


The first step to solving this problem would be to multiply 469.82 by 0.085.

<em>New Equation :</em>
469.82 × 0.085 = ?

<em>Solution {New Equation Solved} :</em>
469.82 × 0.085 = 39.9347

Ignore the forty seven at the end of the solution. You're only going to need 39.93. Now we'll add 469.82 and 39.93. This is the sales tax plus the regular price. Which will then bring us to our total.

<em>New Equation :</em>
469.82 + 39.93 = ?

<em>Solution {New Equation Solved} :</em>
469.82 + 39.93 = 509.75

<em>So, 469.82 plus 8.5 sales tax is</em>  509.75.

Hope this helps!


- Lindsey Frazier ♥
4 0
3 years ago
The amount in kilograms, a, of a radioactive element that remains after t hours can be modeled by the equation a= 0.65(0.92)to t
elena-14-01-66 [18.8K]

Answer:

The rate of decrease is 8%

Step-by-step explanation:

we know that

The general equation for the radioactive decay can be written as:

a=a_0(1-r)^t

where

a is the amount in kilograms after time t.

a_0 is the original amount of the substance or y-intercept of the function

r is the decay rate, written in decimals.

t is the time

In this problem we have

a=0.65(0.92)^t

so

a_0=0.65\\(1-r)=0.92

solve for r

r=1-0.92=0.08

Convert to percentage

0.08(100)=8\%

6 0
3 years ago
The first AMC 8 was given in 1985 and it has been given annually since that time. Samantha turned 12 years old the year that she
Lorico [155]
I would start like this: which year was the seventh AMC 8??

the first was in 1985
The second: 1986
3: 1987
4: 1988
5: 1989
6: 1990
7: 1991

so seventh AMC 8 took place in 1991.
she was then 12, so we can subtract this age from 1991:

1991-12=1979

so she was born in 1979!




5 0
3 years ago
I am a number greater than 20 but smaller than 30. I have two decimal places. The digit in the ones place is 1 less than the dig
Ugo [173]

Answer:

The answer for this problem is 22.36

4 0
3 years ago
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