What is a part to whole ratio?

Mathematics

1 answer:

marshall27 [118]3 years ago

7 0

Answer:

a ratio that compares a selected number of parts. to the total number of parts in a whole.

Step-by-step explanation:

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All the members of a construction crew work at the same pace. Six of them working together are able to pour foundation in 22 hou

Sholpan [36]

Five and a half hours

5 0

3 years ago

M is the midpoint of YZ. If YM = x + 3, and YZ = 3x -1, find MZ

Elenna [48]

2(x+3)= 3x-1
2x+6=3x-1
X=7
Therefore
YM = 7+3= 10
And by definition of midpoint YM=MZ so MZ=10

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3 years ago

If w = -2 and v = -8, which of the following expressions shows the values correctly substituted in for the variables in the expr

Ahat [919]

Answer:

(-2)2 - (-8) + 1

Step-by-step explanation:

When you substitute values into an algebraic equation, you need to input the values exactly how they are given. "w" must go where there are "w"s, and "v" must go where the "v"s are, otherwise you will get an incorrect answer. All values must also carry over their signs--they are one unit--and must be inserted as such, which is why - (-8) is correct, but not - (8) or - 8. (This is because those two negatives will cancel each other out and become +8 when solving). The parenthesis around the values are important because they protect the original values of the variables, which is why (-2)2 is correct. In the case of (-2)2, it also signifies that they are "attached" by multiplication, and when solving would become -4. Without signifying that the variables are separate from the rest of the equation via the parenthesis, it becomes very easy to solve it incorrectly.

5 0

3 years ago

Read 2 more answers

Choose the solution(s) of the following system of equations:

Tatiana [17]

Answer: (sqrt(6),0)

Step-by-step explanation:

By substituting all of the choices into the equation, we get that the 2nd answer from top is the only answer

8 0

3 years ago

Can I get some help please? Thanks!

quester [9]

An ellipse (oval shape) is expressed by the following equation:

$\frac{(x-h)^2}{a^2} + \frac{(y-k)^2}{b^2}=1$ where h is the x coordinate of the center and k is the y coordinate of the center. Furthermore, a is the horizontal distance from the center, and b is the vertical distance from the center. Lastly, c is the distance from the center to one of the foci (they are spaced apart equally).

We can find the foci by using $a^2 - b^2 = c^2$

36 - 11 = $c^2$

$c = \sqrt{25} = 5$

Since the k value in this case is 0, the y value of both foci are 0. Also, since h and k are both 0, we know the center of the ellipse is at the origin.

So the foci are (-5, 0) and (5, 0)

Hope this helps :)

3 0

4 years ago