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Ray Of Light [21]
4 years ago
7

2.2 Calculate without the use of a calculator: 2.2.1 7,5 + 0,75 + 0,075 + 75

Mathematics
1 answer:
shepuryov [24]4 years ago
6 0

Answer:

237.22

Step-by-step explanation:

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One number is 18 more than another number. The sum of the numbers is 36. find the numbers
tatuchka [14]

We can use a system of equations in order to solve for both of the numbers. Let's start off by assigning variables to each number. The bigger number can be 'x', and the smaller number can be 'y'.

We can make two equations from the given:

x = 18 + y

("One number is 18 more than another number")

x + y = 36

("The sum of the numbers is 36")

If you look at the first equation, the variable 'x' already has a value (18 + y). We can input its value into the second equation in order to solve for y:

x + y = 36

(18 + y) + y = 36

18 + 2y = 36

2y = 18

y = 9

Input the value of 'y' into the first equation:

x = 18 + y

x = 18 + 9

x = 27

<u>One number is 27 and the other number number is 9.</u>

<u></u>

Let me know if you'd like me to explain anything I did here.

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7 0
4 years ago
3x^2+24x+9=0 in vertex form (completing the square)
Drupady [299]

Answer:

I tried everything and either I'm doing it wrong or you wrote this wrong

Step-by-step explanation:

6 0
3 years ago
(a) A square has a perimeter of 88 m. What is the length of each side?
otez555 [7]

Answer:

Step-by-step explanation:

88 / sides of a square

88 / 4 = 22  

each side is 22m

8 0
3 years ago
Read 2 more answers
Which quantity is proportional to 40⁄8?
storchak [24]

Answer:

the answer is not on here but it is 5 other than that it might be 5/1.

so D

and B.

Step-by-step explanation:

4 0
3 years ago
A librarian has a set of ten different books, including four different books about Abraham Lincoln. The librarian wants to put t
Ede4ka [16]

Answer:

B

Step-by-step explanation:

The first thing the man needs to do

Is to arrange the books by Abraham Lincoln amongst each other first. Now the number of ways the man can arrange these books amongst each other is a total of 4! Ways. Now there are 6 books remaining and there are also six slots remaining. The number of ways to arrange these six books within theirselves would be 6!

Now the total

Number of arrangements is 6! * 4!

3 0
3 years ago
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