A person draws a map showing the amount of silt left by the flooding of the Nile River. What type of social science does this most directly describe? A. Geography
B. Archaeology
C. Economics
D. Political Science

Leah wears less makeup than Tanya which is why the ratio of the makeup she wears to Tanya is 0.625 : 1.

In finding the ratio of the amount of eye makeup Leah wears to the one that Tanya wears, you have to first assume that Tanya wears 1 unit of makeup.

Leah wears 5/8 of this amount which means that Leah wears 5/8 makeup.

The ratio will be:

Amount of makeup Leah wears         :         Amount Tanya wears

5/8                                                        :                  1

0.625                                                    :                1

In conclusion, the ratio of makeup won by Leah to that won by Tanya is 0.625 : 1.

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If Tanya wore 1 tub of makeup, Leah would wear 5/8 of a tub of makeup, so:

LEAH vs TANYA:

5/8 : 1

multiply both sides by 8 to get rid of fractions:

5 : 8

Probability of selecting exactly 3 male is equals to

What is probability?

" Probability is defined as the ration of the number of favourable outcomes to the total number of outcomes."

Formula used

Probability =

Number of favourable outcomes

Total number of outcomes

According to the question,

Total number of males

Total number of females

Number of judges for a panel to be selected

As per given condition ,

Total number of outcomes

Number of selecting exactly 3 males for 6 judges

Substitute the value in the formula to get the required probability,

Probability of selecting exactly 3 males

Hence, the probability of selecting exactly 3 males is equals to .

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Answer:

For each of them, you would need to isolate the variable.

Step-by-step explanation:

Okay so for the first one, you would need to isolate the x.

x/-2 = 3

Since the "/" represents division, you need to do the inverse of dividing which is multiplication. You would need to multiply on both sides of the equation.

x = 3 x -2

x = -6

And there you have it, the answer for the first problem!

You again, isolate the x for the second equation as well.

-9x = -9

Since the x is directly next to the 9, indicating that it is multiplication. Do the inverse of multiplication which is division. Divide by -9 on both sides.

x=-9

Since -9/-9 cancels each other out, that leaves x by itself.

x = -9/-9

x = 1

You only end up cancelling out the number next to the variable, not the one on the other side. (if you are wondering why I didn't cross it out)

As for the third one, you can carry the -5 over to the -4, but since the inverse of -5 is +5, you add 5 to -4.

x = 1

As easy as that! You don't do the same as the two questions before because the number isn't right next to the variable.

For the fourth one, you isolate the x once more. You do the inverse of multiplication which is again, division. And again, the -5/-5 cancel out!

x = -5/25

x = -0.2

And finally, the last one!

You repeat the same steps as the third one. Add 2 on each side and cancel out 2 + 2 on the x's side.

x = 10 +2

x = 12

And that's all your answers. Hope you understood :)