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andrew11 [14]
2 years ago
10

A walli can be built by 6 men working for 8 hours per day in 5 days. How many days will it take 4 men to build if they work only

5 hours per day.
(show your working)
Mathematics
1 answer:
Korvikt [17]2 years ago
3 0

Answer:

A wall can be built by 6 men working 8*5*6=240 hours.

If 4 men works 5 hours a day, they work 20 hours/day.

It will take them 240 hours /20 hours = 12 days

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Homework check? if i’m wrong tell me why? :)
Talja [164]

Answer:

9d you need to take the 3 to the power outside the ().  I can't read it.  4???

10c x needs to be raised to the power also.

10e simplify the fraction

Step-by-step explanation:

7 0
3 years ago
Suma divizorilor naturali ai numărului 15
xenn [34]
Divizorilor naturali ai numărului 15 es 3 y 5. Suma de 3 y 5 es 8.
3 0
3 years ago
A certain bleach is 5% active ingredients. In 10 gallons of this bleach, how much is active ingredients? 0.05gallons 0.5gallons
natka813 [3]
The answer would be 0.5 gallons.
4 0
3 years ago
Suppose that prices of recently sold homes in one neighborhood have a mean of $265,000 with a standard deviation of $9300. Using
Hatshy [7]

Answer:

Range  = (237100, 292900)

Step-by-step explanation:

Using Chebyshevs Inequality:

P(|X - \mu | \le k \sigma )\ge 1  -\dfrac{1}{k^2}= 0.889

1  -\dfrac{1}{k^2}= 0.889

\dfrac{1}{k^2}= 1- 0.889

\dfrac{1}{k^2}=0.111

k = \sqrt{\dfrac{1}{0.111}}

k \simeq 3

Thus, 88.9% of the population is within 3 standard deviation of the mean with the Range = μ  ±  kσ

where;

μ = 265000

σ = 9300

Range = 265000  ±  3(9300)

Range = 265000  ± 27900

Range =   (265000 - 27900, 265000 + 27900)

Range  = (237100, 292900)

3 0
2 years ago
Before sending track and field athletes to the Olympics, the U.S. Holds a qualifying meet. The box plots below show the distance
sleet_krkn [62]

Question:

The options are;

A. The distances in the Olympic final were farther on average.

B. The distances in the Olympic final varied noticeably more than the US qualifier distances

C. The distances in the Olympic final were all greater than the US qualifier distances

D. none of the above

Answer:

The correct option is;

A. The distances in the Olympic final were farther on average.

Step-by-step explanation:

From the options given, we have

A. The distances in the Olympic final were farther on average.

This is true as the sum of the 5 points divided by 5 is more in the Olympic final

B. The distances in the Olympic final varied noticeably more than the US qualifier distances

This is not correct as the difference between the upper and lower quartile in the Olympic final is lesser than in the qualifier

C. The distances in the Olympic final were all greater than the US qualifier distances

This is not correct as the max of the qualifier is more than the lower quartile in the Olympic final

D. none of the above

We have seen a possible correct option in option A

7 0
3 years ago
Read 2 more answers
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