2 years ago

27. If three more than one-fourth of a number is

Mathematics

1 answer:

ololo11 [35]2 years ago

8 0

Answer:

Step-by-step explanation:

let the number be n , then

$\frac{1}{4}$ n + 3 = n - 3 ( multiply through by 4 to clear the fraction )

n + 12 = 4n - 12 ( subtract 4n from both sides )

- 3n + 12 = - 12 ( subtract 12 from both sides )

- 3n = - 24 ( divide both sides by - 3 )

n = 8

That is the number is 8

You might be interested in

Seven wholes times 2 fifteenths

Margarita [4]

7 x 2/15

7 x 2 = 14

14/15 is your answer

hope this helps

4 0

3 years ago

Will mark brainliest and 15 points

insens350 [35]

Answer:

Step-by-step explanation:

x - 3y -15

x = -3

6 0

2 years ago

Suppose thirty-two students signed up for classes during an orientation session. If

Elis [28]

Answer:

Step-by-step explanation:

add the total that signed up for chemistry with the total that signed up for english which would be 20+16=36

4 0

3 years ago

For an angle θ with the point (−5, −12) on its terminating side, what is the value of cosine?

viva [34]

Answer:

option C. $-\frac{5}{13}$

Step-by-step explanation:

we have that

The point (-5,-12) belong to the III quadrant

The value of the cosine is negative

Applying the Pythagoras Theorem

Find the value of the hypotenuse

$h^{2}=5^{2}+12^{2}\\ h^{2} =25+144\\ h^{2}=169\\h=13\ units$

The value of cosine of angle θ is the ratio between the side adjacent to angle θ and the hypotenuse

$cos(\theta)=-\frac{5}{13}$

8 0

3 years ago

The width of a rectangle is 12 units. Can the perimeter x of the rectangle can be 60 units when its length y is 18 units? (1 poi

juin [17]

If the width is 12 and the length is 18, the perimeter of the rectangle is 12 + 12 + 18 + 18, or 60. So yes the perimeter can be 60.

8 0

2 years ago