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lyudmila [28]
2 years ago
11

How can you express (15 30) as a multiple of a sum of whole numbers with no common factor?

Mathematics
2 answers:
tigry1 [53]2 years ago
7 0

Answer with explanation:

We have to write ,15 and 30 as a multiple of sum of whole numbers with no common factor.

→15= 13+2----13 and 2 are both prime that is no factor other than 1 and itself.

→30=13 +17---13 and 17 are both prime that is no factor other than 1 and itself.

Alex_Xolod [135]2 years ago
4 0
Well theoretically speaking you could but that would take a long time and 15 and 30 have a common factor of 5 and 15. So I think for this one you can't since there are two common factors.
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The answer for 10 2/3×31/8 rounded to the nearest whole number?
BigorU [14]
10 \frac{2}{3} ( \frac{31}{8}) can be changed into this equation:

\frac{32}{3}( \frac{31}{8}  )

The 32 and 8 have a common factor of 8 and can be simplified to become this equation:

\frac{4}{3} ( \frac{31}{1})

Now multiply across to get \frac{124}{3} which then simplifies to 41 \frac{1}{3} which as a decimal is 41.333 (repeating 3s). Nearest whole number is 41. 

Your answer is 41
5 0
3 years ago
Factor the expression.
tiny-mole [99]
B. (k+10f)(k-5f) you can tell in 2 ways.  1. if the second sign is neg then the signs in the factors are going to be one neg and one positive so that knocks out C and D.  Then you look at the second term and since the 5 is positive then the 10 has to be positive so you end up with a positive 5kf.

The second way is to FOIL them out.  When you check B you get k^{2} -5kf+10kf- 50f^{2} combine your like terms and you have your original expression of k^{2} +5kf-50 f^{2}

Hope that helps
3 0
3 years ago
Find the explicit formula that produces the given sequence. <br> 3/2, 3/4, 3/8, 3/16,...
lara [203]
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a_n=\frac{3}{2}\cdot\left(\frac{1}{2}\right)^{n-1}=\frac{3}{2}\cdot\left(\frac{1}{2}\right)^{-1}\cdot\left(\frac{1}{2}\right)^n=\frac{3}{2}\cdot2\cdot\left(\frac{1}{2}\right)^n=3\cdot\left(\frac{1}{2}\right)^n
7 0
2 years ago
Please help me write an equation.
vekshin1

Answer:

k=6

Step-by-step explanation:

Line partition formula

1/b(x2-x1)+x1, 1/b(y2-y1)+y1

Where b is the number partitions.

We know the x values so Subsitue 17 for x2 and 2 for x1. and we know this value must equal 7.

1/b(17-2)+2=7

1/b(15)=5

1/b=1/3

b=3

so the partition is 1/3

\frac{1}{3} (17 - 2) + 2 = 7

So let find the y coordinate

\frac{1}{3} (8 - 5) + 5 = 6

So our y coordinate is 6.

4 0
2 years ago
If elephant grass grows <br> 2 1/5 inches a day, how many inches will it grow in 6 days?
wel

Answer:

13.2 or 13 1/5 inches

Step-by-step explanation:

2 1/5 in/day * 6 days = 13.2 or 13 1/5 inches

OR

  2 1/5 in

+ 2 1/5 in

+ 2 1/5 in

+ 2 1/5 in

+ 2 1/5 in

+ 2 1/5 in

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

13 1/5 in

6 0
2 years ago
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