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Mariana [72]
2 years ago
15

If we multiply a number by 5, then we add it by 3.5, and we divide the result by 2, and from the new result we subtract 7.6 we o

btain 6.65. Find out the number.
Mathematics
1 answer:
Iteru [2.4K]2 years ago
7 0

Answer:

the number is 5

Step-by-step explanation:

((n x 5 + 3.5) ÷ 2) -7.6 = 6.65

( 5n + 3.5) ÷ 2 = 14.25

5n + 3.5 = 28.5

5n = 25

n = 5

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At the local nursery, 1/8 of the plants for sale are flowers and another 1/4 of them are bushes. What fraction of the plants for
Nezavi [6.7K]
I’m not sure if this is correct but
you have used 3/8 of the plants so you will have 5/8 left to use
3 0
2 years ago
How to solve this <br><br> 4x-3(x-2)=21
Natasha_Volkova [10]

We can start by getting rid of parenthesis:

4x-3x+6=21

Then we can combine like terms:

x=21-6

x=15

So our end product is x=15.

Hope I helped soz if I'm wrong ouo.

~Potato.

Copyright Potato 2019.

4 0
3 years ago
What is the sum of the interior angles in this shape?
Dmitrij [34]

Answer:

720° :)

Step-by-step explanation:

You can find the total interior angle for any shape using the following (n being the number of sides):

S = ( n - 2 ) × 180 °

S = (6-2) * 180

S = 720

5 0
2 years ago
Read 2 more answers
What is the minimum value of the function g(x) = x2 - 6x – 12?<br> -21<br> 3-21<br> 3<br> 3+21
balandron [24]

Answer:

- 21

Step-by-step explanation:

The minimum value occurs at the vertex of the function

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

To obtain this form use the method of completing the square

Given

f(x) = x² - 6x - 12

add/ subtract ( half the coefficient of the x- term)² to x² - 6x

f(x) = x² + 2(- 3)x + 9 - 9 - 12

     = (x - 3)² - 21

with vertex = (3, - 21 )

The minimum is the value of k, that is minimum value = - 21

4 0
3 years ago
Four times the difference of a number and seven is 32
disa [49]
As a formula, you're saying 4*(n-7)=32

This solves to n-7 = 8, so n=15
5 0
2 years ago
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