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Lina20 [59]
3 years ago
12

30 workers can complete a work in 40 days in how many days would 20 men complete the construction​

Mathematics
1 answer:
telo118 [61]3 years ago
6 0

Answer:

27

Step-by-step explanation:

(30 workers/40 days) = (20 workers/x days) cross multiply

30*x=40*20 divide by 30 both sides

x= 800/30

x≈26.67

So they will need 27 days

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The interval for which is non real is
scZoUnD [109]

Answer:

c

Step-by-step explanation:

it is non real if x²-36<0

x²<36

|x|<6

so -6<x<6

7 0
3 years ago
Would 1/5 be greater than 1/3 but less than 2/3
makvit [3.9K]
1/5 = 3/15
1/3 = 5/15
2/3 = 10/15
So no :)

Reason why:
You want to find the common denominator between all three fractions, so all fractions are the same proportions. So in this case, if you multiply 5*3 you get 15, making it the common denominator. Then since you multiplied the 5 in 1/5 by 3 to get 15, and you have to multiply the 3 in 1/3 and 2/3 by 5 to get 15, then you multiply the numerator by the same number.

Sorry I am terrible at explaining things. Hope this helped though!
7 0
3 years ago
Will mark brainliest lol​
BabaBlast [244]

Answer:

x=17

The angles are Vertical.

Step-by-step explanation:

6x17 equals 102. Then subtract 12 from 102 to get 90 degrees.

6(17)-12=90 degrees

3 0
3 years ago
Read 2 more answers
A group of students and workers entering a metro station were asked whether they were riding the bus or the subway. the two-way
Otrada [13]

The addition of the row and column shows that the number of people polled will be 166.

<h3>How to calculate the number?</h3>

From the information given, the guest thing to do is to add the column. This will be:

= 48 + 118 = 166

Also, it's important to add the row. This will be:

= 69 + 97 = 166

Therefore, the number of people polled will be 166.

Learn more about column on:

brainly.com/question/1788884

#SPJ4

3 0
3 years ago
4 3/10 - ( 2 2/5x+ 5 1/2) = 1/2(-3 3/5x + 1 1/5)
koban [17]

Answer:

x = -223/11 = -20.273

Step-by-step explanation:

Step  1  : Simplify:  11/5

Step 2: Simplify 33/5

Step  3  :

Adding fractions which have a common denominator

Step  4: Simplify: 1/2

Step  5  :  see below

Step  6  :  see below

Pulling out like terms/factors

Step  7 : Simplify: 51/2

Step 8:  Simplify: 22/5

Step 10: Simplify: 43/10

Step  9  :

Calculating the Least Common Multiple

Step  11  :

Adding fractions which have a common denominator

Done.

Hope this helps.

7 0
3 years ago
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