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sweet-ann [11.9K]
3 years ago
12

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

Mathematics
1 answer:
antoniya [11.8K]3 years ago
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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Suppose you begin a job with an annual salary of $32,900. Each year you are assured of a 5.5% raise. What its the total amount t
murzikaleks [220]

Answer: The correct option is C

Step-by-step explanation:

You begin a job with an annual salary of $32,900

Each year you are assured of a 5.5%. If you get the same amount each year, that is a 100% payment. It is neither reducing nor increasing. But with an increase of 5.5% each year, it means you are getting (100+5.5)% each year. This equals 105.5%. So for each year, you get 105.5% of the previous year.

This is a geometric progression. To determine the total amount that you can earn in 15 years, we will find the sum of 15 terms, S15 of the series. The formula for sum of the nth term of a geometric progression is expressed as

Sn = [a(r^n - 1)] / r - 1

Where

Sn = sum of the nth terms of the series

a = the first term(salary of the first year

r = common ratio

n = number of years.

From the question,

a = 32900

n = 15

r = 105.5/100 = 1.055

S15 = [32900(1.055^15 - 1)] / 1.055 - 1

S15 = [32900(2.23247649224 - 1)] / 0.055

S15 = [32900 × 1.23247649224] / 0.055

S15 = $737245

7 0
3 years ago
After spending $3750 for tables and $3650 for chairs a convention center manager finds that the furniture cost 6% more than last
pshichka [43]

Answer:

$6981

Step-by-step explanation:

Let's find the answer by using the following formula:

(this year cost)=(last year cost)+((last year cost)*(percent increase of cost)) so:

3750+3650=X+0.06X where X=last year cost, then:

7400=1.06X

6981.13=X

In conclusion, last year he spent $6981.

7 0
3 years ago
Is 7 time 5 even or odd
Pepsi [2]

Answer: 35= odd

Step-by-step explanation:

very simple...

Even numbers end with 2, 4, 6, 8, or 0 and odd numbers end with 1, 3, 5, 7, or 9.

35 ends with a 5. So it is odd...

Hope this helped!

7 0
3 years ago
Which expression is the factored form of 2/3 x+4
scoundrel [369]
By expanding D it is clear that it is the factored form of 2/3x + 4

as 2/3x + 4 = 2/3x + 4*3/3

= 2/3x + (2*3)*(2/3). ( rearranging terms)

=2/3( x+ 2*3). ( taking 2*3 common)

=2/3( x + 6)


which is option D

hope it helped ^_^
5 0
3 years ago
This supply graph shows the supply of video games
Andrews [41]
The correct answer is 300
8 0
3 years ago
Read 2 more answers
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