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cricket20 [7]
3 years ago
14

Three people build a wall in 10 days. How long would it take five people?

Mathematics
1 answer:
nata0808 [166]3 years ago
3 0

Answer:

6 days for 5 people

Step-by-step explanation:

  1. 3 x 10 = 30
  2. 30/5 - 6
  3. 6 days
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Principal=$100 rate=5% years=3 what is the interest?
hammer [34]

Answer:

Interest would be $15 every 3 years

Step-by-step explanation:

Interest = Principal x Rate x Time

Interest = 100 x 5% x 3

Interest = 5 x 3

Interest = 15

6 0
3 years ago
Bulletin board is 8 feet long and 5 feet wide. How many feet of border does it need?
Musya8 [376]
8 × 5 = 40

So the border has to be 40 feet.

Hope this helps!

Work:

length × width = answer

length = 8
width = 5
answer = 40
7 0
3 years ago
Read 2 more answers
The expression below is the factorization of what trinomial?
Lapatulllka [165]
The answer is:  [A]:   45x² + 81x + 36 .
_________________________

Explanation:  Use "FOIL" technique: (First, Outer, Inner, and Last Terms); 
                       then, combine the "like terms", to simplify. 
__________________________________________

(5x+4)(9x+9) = 45x² + 45x + 36x + 35 = 45x² + 81x + 36 .
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6 0
4 years ago
Which one is correct
bekas [8.4K]

Answer:

Bart is correct

Step-by-step explanation:

5 0
3 years ago
After 8 points are added to each score in a sample, the mean is found to be M= 40. What was the value for the original mean
MArishka [77]

Answer:

The value for the original mean = 32

Step-by-step explanation:

Here, we want to calculate the original value of the mean.

Let the number of samples be n

Mathematically;

mean = Total value/n

Now, we added 8 to each of values; total value added = 8 * n = 8n

Now, for the new mean of 40; we have

(Total value + 8n)/n = 40

Total value + 8n = 40n

Total value = 40n -8n

Total value = 32n

kindly recall from the beginning of the solution;

mean = Total value/n

mean = 32n/n

mean = 32

So the original value of the mean is 32

6 0
3 years ago
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