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Anastaziya [24]

3 years ago

13

If there are 25 students in a class and 13 are girls, what is the ratio of boys to girls? Is the relationship, part to part, par

t to whole or whole to part

1 answer:

Alexeev081 [22]3 years ago

3 0

12 to 13 is the ratio.

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Please help. the question is in the picture.

Harlamova29_29 [7]

We have measures of all tree sides of the both triangles,

so we can use SSS to check if the triangles are similar.

|ED|/|AB| =5/10=1/2

|DC|/|BC| = 4/8 = 1/2

|EC|/|AC| = 6/12 = 1/2

We see that all tree pairs are in proportion, so these triangles ΔABC and ΔEDC are similar.

We have enough information to prove that ΔABC similar to ΔEDC.

8 0

3 years ago

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What is the area of a rhombus with diagonals measuring 8.6 in and 15.3 in.

BigorU [14]

The area of the rhombus is 65.79

7 0

3 years ago

What is the sqaure root of a sqaure

Ludmilka [50]

If you square a number then get the square root of that, you end up with the original number.

3 0

3 years ago

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A^2+b^2= C^2 solve for A

mafiozo [28]

Answer:a= square root of (c^2 - b^2)

Step-by-step explanation:

Subtract b^2 from both sides then take the square root of both sides

3 0

3 years ago

Solve the system : x = 2 - y and 3x + 3y = 6

Vesna [10]

Answer:

Option is d) Coincident lines.

Step-by-step explanation:

Given:

x = 2 - y and

3x + 3y = 6

Solution:

Let we rewrite the equations as

x + y = 2 ...................................Equation ( 1 )

3x + 3y = 6 ....................................Equation ( 2 )

Compare the above Two Equations with the following

a₁x + b₁y = c₁ and

a₂x + b₂y = c₂

We get

a₁ = 1 ; b₁ = 1 ; c₁ = 2 and

a₂ = 3 ; b₂ = 3 ; c₂ = 6

Now we will check

$\frac{a_{1}}{a_{2}}=\frac{1}{3}\\\\\frac{b_{1}}{b_{2}}=\frac{1}{3}\\\\\frac{c_{1}}{c_{2}}=\frac{2}{6}=\frac{1}{3} \\$

Now we get

$\frac{a_{1}}{a_{2}}=\frac{b_{1}}{b_{2}}=\frac{c_{1}}{c_{2}}=\frac{1}{3}$

Which is the condition for a COINCIDENT LINES

COINCIDENT LINES have Infinite solutions for different x and different y

5 0

3 years ago