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asambeis [7]
2 years ago
15

52 is 130% of what number

Mathematics
2 answers:
Westkost [7]2 years ago
6 0
52 divided by 130 would be 0.4 so if you need it in percent then it would be 4%.

7nadin3 [17]2 years ago
3 0
Let x be that number. Then 
130% x = 52
>> (130/100) x = 52
>> 1.3 x = 52
>> x = 52 / 1.3

>> <u>x = 40</u>
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*WILL MARK BRAINLIEST*
LenaWriter [7]

The text itself determined how to solve the problem.

Namely, two object are given in two relations and we conclude that we have two variables that we present with two equations.

We will take hardcover books as x and paperbacks as y.

First equation is  4x+10y=64

Second equation is  5x+7y=58

This is system of two linear equations with two variables

To solve this system we will use Gaussian agorithm with which we make

gradual elimination of the variables.

We will multiply first equation with number 4 and second with number (-5)

and get

20x+50y=320   and   -20x-28y=-232

When we add first equation to another we get

variable x is eliminated  

50y-28y=320-232 => 22y=88 => y=88/22=4

y=4  when we replace variable y in the first equation before multiplying

we get  4x+10*4=64 => 4x+40=64 => 4x=64-40 => 4x=24 => x=24/4=6

x=6

Total charge for hardcovers is  => 4x+5x=9x=9*6=54$

Total charge for paperbacks is => 10y+7y=17y=17*4=68$

Good luck!!!



4 0
3 years ago
Read 2 more answers
100+300= What is it<br><br> Help plz
DiKsa [7]

Answer:

400 is the answer

Step-by-step explanation:

Please use a calculator if your teacher says too. Write the two number under each other like this

100+

300

I hope this helps!

7 0
2 years ago
I domt understand slope at all
photoshop1234 [79]

slope = 2 and y-intercept = 0

the equation of a line in ' slope- intercept form ' is

y = mx + c  ( mis the slope and c the y-intercept )

given 2x - y = 0 ( add y to both sides )

2x = y or y = 2x + 0 ← in slope-intercept form

with slope m = 2 and y-intercept c = 0


7 0
2 years ago
a submarine travels 90 kilometers in 4 hours find the submarines rate of speed in kilometers per hour
defon

Answer:

22.5

Step-by-step explanation:

To find the rate of speed per hour, you need to divide the kilometer (90) by the hours (4).

90/4=

22.5

6 0
2 years ago
The concept of hope is nothing more than giving up. A word that holds no true meaning.
choli [55]

Answer:

lol fr

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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