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3 years ago

Divide Rs750 in the ratio of 2:3

Mathematics

2 answers:

elena-s [515]3 years ago

7 0

Answer:

Rs.300, Rs.450

Step-by-step explanation:

Ratio = 2:3

Total Share = 2x + 3x = 5x

5x = 750

x = 750/5 = 150

2x= 2 * 150 = Rs.300

3x = 3*150 = Rs.450

White raven [17]3 years ago

5 0

Answer:

Rs. 450 and Rs. 300

Step-by-step explanation:

Step 1: Add the ratios; 3 + 2 = 5

Step 2: Put each ratio over the total, to see what proportion each part receives 3/5 and 2/5

Step 3: Multiply the 750 by the fraction to calculate the proportion that each part contains

3/5 x 750 = Rs. 450

2/5 x 750 = Rs. 300

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What is the equation of the quadratic graph with a focus of (3, 1) and a directrix of y = 5?

telo118 [61]

Answer:

$f(x)=-\frac{1}{8}(x-3)^2+3$

Step-by-step explanation:

We want to find the equation of the parabola with a focus of $(3,1)$ and directrix $y=5$ .

Considering the directrix, the quadratic graph must open downwards.

The equation of this parabola is given by the formula,

$(x-h)^2=4p(y-k)$ , where $(h,k)$ is the vertex of the parabola.

The axis of this parabola meets the directrix at $(3,5)$ .

Since the vertex is the midpoint of the focus and the point of intersection of the axis of the parabola and the directrix,

$h=\frac{3+3}{2}=3$ and $k=\frac{5+1}{2}=3$ .

The equation of the parabola now becomes,

$(x-3)^2=4p(y-3)$ .

Also $|p|$ is the distance between the vertex and the directrix.

$|p|=2$

This implies that $p=-2\:or\:2$ .

Since the parabola turns downwards,

$p=-2$ .

Our equation now becomes,

$(x-3)^2=4(-2)(y-3)$ .

$(x-3)^2=-8(y-3)$ .

We make y the subject to get,

$y=-\frac{1}{8}(x-3)^2+3)$ .

This is the same as

$f(x)=-\frac{1}{8}(x-3)^2+3)$ .

4 0

3 years ago

I REALLY NEED SOMEONES HELP ON THIS PLEASE!! I NEED THIS DONE TODAY!

Rufina [12.5K]

The 5 in x - 5 needs to be negative in the table. So, change that and make everything else in that row negative.

You are then left with 3x^2 + x - 15x - 5

Simplify to 3x^2 - 14x - 5

Please consider marking this answer as Brainliest to help me advance. If you have any questions, please let me know.

8 0

3 years ago

PLS HELP I DONT UNDERSTAND !

Svetach [21]

Answer:

I think the answer is 24

Step-by-step explanation:

hope its helpful

4 0

3 years ago

The value of y varies directly with x. If x = 4, then y= 10. What is the value of x when

Eva8 [605]

4 10
— —
10 25

answer: 10

8 0

3 years ago

What would my answer be?

Svetllana [295]

Since triangle is isosceles, that means that unknown angles are equal. 180-72=108
108:2=54
So you’re answer would be: 54 degrees.

4 0

3 years ago

Divide Rs750 in the ratio of 2:3​

Divide Rs750 in the ratio of 2:3