All categories

2 years ago

How do I solve/ set up equation? Will give brainliest pls help

Mathematics

1 answer:

slamgirl [31]2 years ago

4 0

Answer:

See below ~

Step-by-step explanation:

Finding x

2x - 28 = x/2
3/2x = 28
3x = 56
x = 56/3 = 18.66666667

The exact side length of the small square is 18.66666667 cm and the exact side length of the big square is 37.3333334 cm.
The approximate side length of the small square is 18.7 cm and the approximate side length of the big square is 37.3 cm.

You might be interested in

A bulletin board measuring 28 dm long was divided among three subject areas in the ratio 2:2:3. How much space was alothed for e

Sphinxa [80]

Answer: Space was alloted for each subject is 8 dm, 8 dm, 12 dm.

Explanation:

Since we have given the length of bulletin board =28 dm

Let the share of three subject areas be 2x,2x,3x

According to question,

$2x+2x+3x=28\\7x=28\\x=\frac{28}{7}\\x=4dm$

so x=4 dm

Now,

Space was alloted for each subject is given as below:

First subject = $2x=2\times 4=8 dm$

Second subject = $2x=2\times 4=8 dm$

Third subject = $3x=3\times 4=12 dm$

4 0

3 years ago

The trees at a national park have been increasing in numbers. There were 1,000 trees in the first year that the park started tra

ivanzaharov [21]

The sequence forms a Geometric sequence as the rule to obtain the value for the next term is by ratio

Term 1: 1000
Term 2: 200
Term 3: 40

From term 1 to term 2, there's a decrease by $\frac{1}{5}$
From term 2 to term 3, there's a decrease also by $\frac{1}{5}$

The rule to find the $n^{th}$ term in a sequence is
$n^{th}=a r^{n-1}$ , where $a$ is the first term in the sequence and $r$ is the ratio

So, the formula for the sequence in question is
$n_{th}$ term = $1000( \frac{1}{5} ^{n-1} )$

The sequence is a divergent one. We can always find the value of the next term by dividing the previous term by 5 and if we do that, the value of the next term will get closer to 'zero' but never actually equal to zero.

We can find a partial sum of the sequence using the formula
$S_{∞} = \frac{a}{1-r}$ for -1<r<1
Substituting $a=1000$ and $r= \frac{1}{5}$ we have
$S_{∞}$ = $\frac{1000}{1- \frac{1}{5} }$ = 1250

Hence, the correct option is option number 1

6 0

3 years ago

4 2 5 0 3 2 8 7 2 1 8 ?

natali 33 [55]

Answer:

Step-by-step explanation:

7 0

2 years ago

Is 5.2 greater than 60.3

yanalaym [24]

No, it is not. If you see closely, the number 5.2 is not 52. 60 is greater than 5.2.

4 0