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finlep [7]
3 years ago
15

How to calculate a percentage increase​

Mathematics
1 answer:
Flauer [41]3 years ago
5 0
1. Find the difference between the two compared numbers.
New Number - Original Number
2. Divide the difference by the original number.
Difference/Original Number
3. Multiply that value by 100
You might be interested in
Write and equation of the translated or rotated graph in general form (picture below)
Svetlanka [38]

Answer:

Option b

Step-by-step explanation:

The equation 4x ^ 2 + 5y ^ 2 = 20 has center in (0,0).

But the transformation T(5, -6) shifts the center of the equation to the point (5, -6).

Therefore, when applying T(5, -6) we will have the following equation translated.

4(x-5) ^ 2 + 5(y - (-6)) ^ 2 = 20.

Simplifying we have:

4(x-5) ^ 2 + 5(y + 6) ^ 2 = 20

Now we expand (x-5) ^ 2 and (y + 6) ^ 2

4(x ^ 2 -10x +25) + 5(y ^ 2 + 12y +36) = 20\\\\4x ^ 2 -40x + 100 + 5y ^ 2 + 60y + 180 = 20\\\\4x ^ 2 + 5y ^ 2 -40x + 60y +260 = 0

The equation of a circle has the form

h(x-a) ^ 2 + q(y-b) ^ 2 = r

For h = 1 and q = 1.

If h \neq 1 and q\neq 1 then the graph becomes an ellipse.

In this problem h = 4 and q = 5 therefore the figure is an ellipse

3 0
3 years ago
Select the correct answer from each drop-down menu. If u = 5 − 2i and v = 2 − 5i, u + v = and u− v = .
Alex Ar [27]

Answer:

u+v=7-7i

u-v=3+3i

Step-by-step explanation:

u+v

(5-2i)+(2-5i)

Put like terms together:

(5+2)+(-2i-5i)

Simplify:

7+-7i

7-7i

u-v

(5-2i)-(2-5i)

Distribute:

(5-2i)+(-2+5i)

Put like terms together:

(5-2)+(-2i+5i)

3+3i

6 0
3 years ago
Please help fast....
Doss [256]

Answer:

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
1/10+50/100 need help ​
monitta

Answer:

3/5

Step-by-step explanation:

For this problem, you first have to make the denominators the same. You can use 100 in this example. You will have to multiply 1/10*10 which gives you 10/100. Then you add the numerator and denominator which is 60/100. Then you simplify to give you the answer of 3/5. I hope this helps you!

5 0
3 years ago
I have no idea what I'm supposed to do for this question please explain
maks197457 [2]
For part B
the fixed cost is 500 dollars because it is a set inital amount, the varibale cost is .15 because it is the cost dependent on something else (per indicated variable part)

y=.15x+500
.15 cents per flyer, add 500 because that is the set amount it costs to even create the flyer

Plug in 500 for the equation
y=.15(500)+500
y=75+500
y=575


for part a b=ka for direct variations so the direct one is C - two items directly multiplied y=mx+b for partial variation so its A,D - basically the equation of a line A is neither - shows neither of these relationships
5 0
3 years ago
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