All categories

2 years ago

In your path class, 60% of the student are girls. If there are 15 girls in the class, how many students are in your math class?

Mathematics

2 answers:

Lubov Fominskaja [6]2 years ago

6 0

0.60x = 15
divide by 0.6
You will then get the answer of 25

xxMikexx [17]2 years ago

3 0

25 students in class

You might be interested in

Jake and Lacy work at a golf driving range. At the end of the day, Jake collected 408 golf balls and Lacy collected 374 golf bal

Reptile [31]

they will fill 23 baskets. we get this by adding the number of golf balls each of them get to get the total number of golf balls. then, we divide the total number of golf balls by 34 because that's how many they will be able to put into each basket. it will look a little like this: 408+374=782

782/34=23 baskets

3 0

2 years ago

The expression when m=6 and n=4

AlladinOne [14]

Plugging in the values, we get 7(6)-4=42-4=38.

3 0

3 years ago

Read 2 more answers

Im having some trouble with this and have no idea

AlladinOne [14]

Answer:

Step-by-step explanation:

x+10=0

x=-10

so vertex is (-10,-105)

7 0

2 years ago

Determine if the angles are complementary, supplementary or vertical. Then find the missing angle.

postnew [5]

Answer:

Step-by-step explanation:

Vertically opposite angles.

Here,

b=43 (being vertically opposite angles )

4 0

2 years ago

A door of a lecture hall is in a parabolic shape. The door is 56 inches across at the bottom of the door and parallel to the flo

Arada [10]

Answer:

The parabolic shape of the door is represented by $y - 32 = -\frac{2}{49}\cdot x^{2}$ . (See attachment included below). Head must 15.652 inches away from the edge of the door.

Step-by-step explanation:

A parabola is represented by the following mathematical expression:

$y - k = C \cdot (x-h)^{2}$

Where:

$h$ - Horizontal component of the vertix, measured in inches.

$k$ - Vertical component of the vertix, measured in inches.

$C$ - Parabola constant, dimensionless. (Where vertix is an absolute maximum when $C < 0$ or an absolute minimum when $C > 0$ )

For the design of the door, the parabola must have an absolute maximum and x-intercepts must exist. The following information is required after considering symmetry:

$V (x,y) = (0, 32)$ (Vertix)

$A (x, y) = (-28, 0)$ (x-Intercept)

$B (x,y) = (28. 0)$ (x-Intercept)

The following equation are constructed from the definition of a parabola:

$0-32 = C \cdot (28 - 0)^{2}$

$-32 = 784\cdot C$

$C = -\frac{2}{49}$

The parabolic shape of the door is represented by $y - 32 = -\frac{2}{49}\cdot x^{2}$ . Now, the representation of the equation is included below as attachment.

At x = 0 inches and y = 22 inches, the distance from the edge of the door that head must observed to avoid being hit is:

$y -32 = -\frac{2}{49} \cdot x^{2}$