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Diano4ka-milaya [45]

3 years ago

5

Total of 581 students. if the ratio of girls to boys in the class is 3:4, how many more boys than girls are in the class

1 answer:

KonstantinChe [14]3 years ago

3 0

Since the ratio is 3:4 there are a total of 7 parts. Divide the 581by 7 to find that each part is 83.

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A rectangle has a length of 3x + 7 and a width of 2x. If the perimeter of the

Art [367]

Answer:

The length of the rectangle is 31.

Step-by-step explanation:

We have that the length (L) and width (W) are:

$L = 3x + 7$

$W = 2x$

The perimeter of the rectangle is given by:

$P = 2W + 2L$

$94 = 2(2x + 3x + 7)$

$94 = 10x + 14$

$x = 8$

Now, we can calculate the length of the rectangle:

$L = 3x + 7 = 3*8 + 7 = 31$

Therefore, the length of the rectangle is 31 units.

I hope it helps you!

7 0

3 years ago

2|x+1/4|=6 <br> Can someone help me please, I'm so confused

aksik [14]

First divide by 2
|x+1/4|=3
Then you pick the possible answers
|x+1/4|=3
|x+1/4|=-3
2 3/4 or -3 1/4

5 0

3 years ago

Triangle ABC has vertices at A(−1 , 2), B(4, 2), and C(3, −1). Classify the triangle according to the side lengths.

Orlov [11]

Answer:

B) Isosceles

Step-by-step explanation:

The given triangle has vertices at A(-1,2), B(4,2) and C(3,-1).

We must first determine the length of the sides of the triangle, before we can classify it.

We apply the distance formula to find length of the sides.

$|AB|=\sqrt{(4--1)^2+(2-2)^2}$

$\Rightarrow |AB|=\sqrt{(4+1)^2+(2-2)^2}$

$\Rightarrow |AB|=\sqrt{5^2+(0)^2}$

$\Rightarrow |AB|=\sqrt{25}$

$\Rightarrow |AB|=5 units$ .

The length of side BC

$|BC|=\sqrt{(3-4)^2+(-1-2)^2}$

$\Rightarrow |BC|=\sqrt{(-1)^2+(-3)^2}$

$\Rightarrow |BC|=\sqrt{1+9}$

$\Rightarrow |BC|=\sqrt{10}$

The length of side AC

$|AC|=\sqrt{(3--1)^2+(-1-2)^2}$

We simplify to obtain;

$|AC|=\sqrt{(3+1)^2+(-3)^2}$

$\Rightarrow |AC|=\sqrt{(4)^2+(-3)^2}$

$|AC|=\sqrt{16+9}$

$|AC|=\sqrt{25}$

$|AC|=5\:units$

Since $|AC|=5\:units=|AB|$ , the given triangle is an isosceles triangle.

The correct answer is

6 0

3 years ago

Read 2 more answers

Jessica had two hundred six dollars to spend on eight books. AFter buying them she ha fourteen dollars. How much did each book c

frutty [35]

Each book costs $24.

206-14=192
192/8=24

8 0

3 years ago

What is the square root of 1/25

wolverine [178]

First simplify the square root of 1/25

-√1/25

Rewrite using the quote by rule for radicals.

-√1/√25

Any root of 1 is 1

-1/√25

Simplify the denominator. (find the square root of 25)

-1/5

The result can be shown in both exact and decimal forms.
Exact form: -1/5
Decimal form: -0.2

6 0

3 years ago