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3 years ago

15

The ratio of foreign students to American students at a college is 2 to 35. How many foreign students attend this college if the

re are 1575 American students?

2 answers:

Arte-miy333 [17]3 years ago

8 0

1575/35=45 so 2x45=90

oee [108]3 years ago

3 0

You have to divide 1575 by 35 which equals 45 and then multiply that by 2 which equals 90. There are 90 foreign students

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Solve the problem x/27=4/9 x=

Monica [59]

Answer: x=12

Step-by-step explanation:

Multiply both sides by 27.
Use this rule: a/b*c=ac/b
Simplify 4×27 to 108.
Simplify 108/9 to 12

$x=\frac{4}{9} *27\\\\x=\frac{4*27}{9} \\\\x=\frac{108}{9} \\\\x=12$

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3 years ago

An interior angle of a regular convex polygon is 140°. How many sides does the polygon have?

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3 years ago

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MaRussiya [10]

The answer to the question is 1/5^3

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2 years ago

In parallelogram ABCD, diagonals AC and BD intersect at point E, AE = x^2 - 12, and CE = 4x What is AC?

Thepotemich [5.8K]

The length of the AC is x^2 + 4x - 12.

<h3>What is a parallelogram?</h3>

That quadrilateral in which opposite sides are parallel is called a parallelogram.

Thus, a parallelogram is always a quadrilateral but a quadrilateral can or cannot be a parallelogram.

Given :

In Parallelogram ABCD, diagonals AC and BD intersect at point E.

such that

AE = x^2 - 12,

CE = 4x

We know that the diagonal of a parallelogram bisect each other.

x^2 - 12 = 4x

x^2 - 4x - 12= 0

(x-6)(x-2) = 0

Hence, the value of x = 6, 2.

AC = AE + CE = x^2 + 4x - 12.

The length of the AC is x^2 + 4x - 12.

Learn more about Parallelogram ;

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1 year ago

Please explain i really don’t understand

Lemur [1.5K]

Answer:

22.5°

Step-by-step explanation:

First we need to figure out the size of the interior angles on the inside.

The formula of figuring out the total degrees of all the interior angles of any shape is (n-2)×180°.

N is the number of sides.

If we substitute our number of sides (8) we get this:

(8-2)×180°

6×180° = 1080°

Then we divide 1080 by 8 since this is a regular octagon (all angles are equal in a regular shape).

1080° ÷ 8 = 135°

Focusing on the triangle now, we now know that the angle on the tip of the triangle is 135° as it has not been split by the line.

Using the rule of angles in a triangle add up to 180°. We do this sum:

180° - 135° = 45°

There are 2 angles left in the triangle so we do:

45° ÷ 2 = 22.5°

Therefore the angle of x is 22.5°.

8 0

2 years ago