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postnew [5]
3 years ago
12

One person can mow a field in 52 minutes and a second can mow the same field in 40 minutes. how long would it take the two of th

em to mow the field together?
Mathematics
1 answer:
swat323 years ago
6 0

It would be:1/x =  1/40+1/52 = 13+10/520 = 23/520

x = 520/23 = 22.60 minutes

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Perfect Squaress less than 30​
levacccp [35]

The perfect whole squares are 1, 4, 9, 16, 25, 36, 49, 64, 81, 100.

Less than 30 are:

<h2>1, 4, 9, 16, 25</h2>
5 0
3 years ago
The numbering system we commonly use is called the decimal numbering system because it uses ____ symbols to represent all possib
mafiozo [28]

The numbering system we commonly use is called the decimal numbering system because it uses <u> 10 </u> symbols to represent all possible numbers.

A way of writing numbers is known as a number system.

There are the following number systems:

  1. Decimal number system: "Deci" meaning 10, implies that the number system consists of 10 digits or symbols, namely 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9.
  2. Binary number system: "Bi" meaning 2, implies that the number system consists of 2digits or symbols, namely 0, and 1.
  3. Octal number system: "Oct" meaning 8, implies that the number system consists of 8 digits or symbols, namely 0, 1, 2, 3, 4, 5, 6, 7, and 8.
  4. Hexa-Decimal number system: "Hexa-Deci" meaning 16, implies that the number system consists of 16 symbols, namely 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F.

Hence, we can say that the numbering system we commonly use is called the decimal numbering system because it uses <u> 10 </u> symbols to represent all possible numbers.

Learn more about number systems at

brainly.com/question/14567654

#SPJ4

6 0
2 years ago
martin climbs 3 1/3 meters in the first 1/6 hour alexia climbs 17 1/2 meters in the first 5/6hour what is the rate martin and al
Yuri [45]
Rate is given by:
rate=(distance )/(time)
Martin's rate will be:
(3 1/3)/(1/6)
=(10/3)/(1/6)
=20 meters per hour

Alexia's rate is:
(17 1/2)/(5/6)
=(35/2)/(5/6)
=21 meters per hour
7 0
3 years ago
Given the polynomial expression 3x^2 + 3bx - 6x - 6b, factor completely.
My name is Ann [436]
The answer is 3 (x+b) (x-2)



Yw! :)
3 0
2 years ago
Rationalize the denominator and simplify. √a+1 - 2 / √a+1 + 2
goldfiish [28.3K]

Answer:

5+a-4√a+1 / a-3

3 0
2 years ago
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