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4 years ago

15 is 25% of the what number?

2 answers:

s2008m [1.1K]4 years ago

7 0

1. Represent percentages as the number divided by 100. So 25% becomes 0.25.
2. Change the word "is" to "=" 
3. Change the word "of" to a multiplication sign. 

So "15 is 25% of what number" 

becomes 

15 = 0.25x (Where x is the number you are trying to solve for). 

In this simple algebra equation, x = 15/.25 = 60.

Ganezh [65]4 years ago

4 0

Well, because 25% is one quarter, 1/4, you would multiply 15 by 4, as you would multiply 25% by 4 to find 100%. That means your answer is 60.

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Which represents a quadratic function?

Lera25 [3.4K]

Answer:

Step-by-step explanation:

Okay! So before we do this, first we have to understand the function. The function is,

y = ax^2 + bx + c, where a does not equal to 0.

The answer is not A, since bx is bx^2 which is incorrect.

The answer isn't C, since there isn't an ax^2 or a bc.

The answer isn't D since there a can't be 0.

The only correct answer is B, for it has all the parts.

x^2 + 2x -5.

7 0

3 years ago

PLEASE HELP!!! How many solutions does the system have?

Sholpan [36]

Answer:

Infinitely many.

Step-by-step explanation:

3x + 2y = 4

-6x - 4y = -8

Note that the second equation is obtained from the first by multiplying the first one by -2. Thus the graph of the 2 equations is the same line and there are infinitely many solutions.

4 0

3 years ago

The map below shows the length of a proposed land bridge at Phil Hardberger Park. The length of the land bridge is represented b

Tamiku [17]

Answer:

A; the actual length of the land bridge from P to H is 50 yards

Step-by-step explanation:

Here in this case, given the coordinates of P and H, we want to calculate the actual length of the distance between the two points.

Mathematically, to calculate this distance, we make use of the distance formula;

D = √(x2-x1)^2 + (y2-y1)^2

In this case, (x1,y1) = (2,55) while (x2,y2) = (32,15)

Substituting these values

D = √(32-2)^2 + (15-55)^2

D = √(-30)^2 + (-40)^2

D = √(900 + 1600)

D = √(2,500)

D = 50 units

Now, we know that each units represent 1 yard, thus 50 units will represent 50 * 1 = 50 yards

8 0

3 years ago

A music teacher has 4 drum kits. Each kit has 2 drumsticks. Each drumsticks costs $3 how many drumsticks does she have what is t

Gnesinka [82]

A music teacher has 4 drum kits. Each kit has 2 drumsticks. Each drumsticks costs $3 how many drumsticks does she have what is the cost to replace them all?

answer: she will have 8 sticks and $24 to replace

Step-by-step explanation:

4 drum kits x 2 drumsticks each kit = 8

8 drumsticks x $3 each = $24

<h2>HOPE IT HELP LET ME KNOW IF ANYTHING IS WRONG :D</h2>

4 0

3 years ago

If f(x) = g(x) - 2 , then * g(x) = f(x) - 2 f(x) = g(x) + 2 g(x) = f(x) + 2

shusha [124]

Answer:

g(x) = f(x) + 2

Step-by-step explanation:

To move the two to the other side of the equation, you have to add the two to both sides of the equation. The 2 cancels out on the g(x) side, and a 2 is added to the f(x) side.

6 0

3 years ago