What is a real situation that would be represented by
a+3

Answers

Answer 1

Answer: a is just a variable to cover up any number you want. a can be anything you want, such as the money in your bank account.
a+3
a=200
200+3

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128 is what percent of 640

Answers

The number 128 is 20 percent of 640.

What is percentage?

A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100. The proportion therefore refers to a component per hundred. Per 100 is what the word percent means.

Let 128 is x percent of 640.

Here, x% of 640 =128

x/100 ×640 =128

6.4x=128

x=128/6.4

x=20%

Therefore, the number 128 is 20 percent of 640.

To learn more about the percentage visit:

brainly.com/question/24159063.

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↑ 128 is 20% of 640
Lets solve:
640 IS 100% Because its the output value of the task
So lets look for x
We got 100%=640
and x%=128
Now im going to write this out as
100% / x%=640/128
Now we just have to solve this simple equation.
(100/x)*x=(640/128)*x
-Multiply both sides of the equation by x
Now we divide both sides of the equation by 5 to get x.
100=5x
100/5=x
20=x
and
x=20
So we got our answer of 20%

Prime factorization of 147

Answers

3, 7^2 the two is supposed to be an exponent.

Answer B: 3 x 7 x7 or 3 x 7^7

4/3v^2x -5/6vx^3 what is this answer for algebra

Answers

$(4)/(3) v^2x - (5)/(6) vx^3$

$(4)/(3) v^2x + (-5)/(6) vx^3$

Answer: $(-5)/(6) vx^3 + (4)/(3) v^2x$

$(4)/(3v^(2)x) - (5)/(6vx^(3)) = (5(3v^(2)x))/((3v^(2)x)(6vx^(3))) - (4(6vx^(3)))/((3v^(2)x)(6vx^(3))) = (15v^(2)x)/(18v^(3)x^(4)) - (24vx^(3))/(18v^(3)x^(4)) = (15v^(2)x - 24vx^(3))/(18v^3x^(4)) = (5v)/(6x^(2)) - (4)/(3v^(2)x)$

Can someone please help me and look over this and answer this?I have a huge E.A and this make up my whole grade please help.

Answers

1. $(Species\ A)/(Species\ B) = ((3x^(2)y)^(2))/(6(xy)^(3)) = (3x^(4)y^(2))/(6x^(3)y^(3)) = (x)/(2y)$

2. $(Species\ C)/(Species\ D) = \frac{20√(xy)}{4\sqrt{x^(2)y}} = (5)/(√(x)) = (5)/(√(x)) * (√(x))/(√(x)) = \frac{5√(x)}{\sqrt{x^(2)}} = (5√(x))/(x)$