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2 years ago

A man can do work in 12 days how much work can be done in 1 days

1 answer:

3 0

so, the 12 men can complete 1 work in 12 days which is equal to 6 men can complete 12work in X days. ⇒x=726=12 days. So the number of extra days which is needed to complete the work = 18 – 12 = 6 days.

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Help ASAP 22.41 + 8.9

Diano4ka-milaya [45]

Answer:

22.41 + 8.9= 31.31

hope this helps <3

8 0

2 years ago

What is seventy divided by four?

Nataly_w [17]

Answer:

17.5

Step-by-step explanation:

17×4=68; half of 4 is 2; 68+2=70

5 0

2 years ago

Read 2 more answers

Find an explicit formula for the following sequence, an which starts with a1=2/3. 2/3,3/4,4/5,5/6,…

Flura [38]

Answer:

Step-by-step explanation:

a1=2/3

sequence is 2/3,3/4,4/5,...

for numerator a1=2

d=3-2=1

numerator of nth term=a1+(n-1)d=2+(n-1)×1=2+n-1=n+1

denominator = 1 more than numerator=n+1+1=n+2

so an=(n+1)/(n+2)

or for denominator a1=3,d=4-3=1

denominator of nth term=3+(n-1)×1=3+n-1=n+2

an=(n+1)/(n+2)

6 0

2 years ago

8) A total of 1456 people attended a high school football game. The cost was $5 for adults and $2.50 for students. If the

MAXImum [283]

Answer:

the answer is 762 adults and 694 students.

Step-by-step explanation:

762 x 5.00 = 3810

694 x 2.50 = 1735

now add 3810 + 1735 = 5545

8 0

2 years ago

Which explanation can be used to derive the formula for the circumference of a circle?

Gelneren [198K]

Answer: The answer is the first explanation.

Step-by-step explanation: We are given five different options and we are to select which explanation is correct to derive the formula for a circumference of a circle.

Let 'C' be the circumference and 'd' be the diameter of a circle. Now, we will write the ratio of the circumference to the diameter as

$\dfrac{\textup{C}}{\textup{d}}.$

Also, we know that

$\dfrac{\textup{C}}{\textup{d}}=\pi.$

And diameter of a circle is twice the radius, so

$d=2r.$

Therefore,

$\dfrac{\textup{C}}{2\textup{r}}=\pi\\\\\Rightarrow \textup{C}=2\pi \textup{r}.$

This is the formula for the circumference of a circle. Since this explanation matches exactly with the first option, so the correct option is

(a). Find the relationship between the circumference and the diameter by dividing the length of the circumference and length of the diameter. Use this quotient to set up an equation to showing the ratio of the circumference over the diameter equals to π . Then rearrange the equation to solve for the circumference. Substitute 2 times the radius for the diameter.

8 0

2 years ago

A man can do work in 12 days how much work can be done in 1 days​

A man can do work in 12 days how much work can be done in 1 days