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Dmitry_Shevchenko [17]
4 years ago
13

3x-1/5-2/9x=124/5how do you solve this?

Mathematics
1 answer:
Sergeu [11.5K]4 years ago
6 0
So first you would combine the like-terms so you get:
\frac{7}{9} x - \frac{1}{5} = 124 \div 5
and combine the second like-terms:
\frac{7}{9}x - \frac{1}{5} = 24.8
now you only have a two step equation and you continue by doing the reciprocal and you add the -1/5 to the 24.8 where you get:

7/9x=24.6

then because the 7/9 is being multiplied by the x and your trying to isolate it you divide it by the 7/9 on both sides and you'll end up getting

x=31.628571429....
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Answer:

one dozen: 12 servings

four dozens: 12x4 so 48 servings

Step-by-step explanation:

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3 years ago
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What is the area of a circle with a diameter of 24 meters (use 3.14 for Pi)?
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The area of a circle is represented by the equation:


A=\pi r^{2}


We know that the diameter is two times the radius: d=2r


So if we know that the diameter of the circle is 24m, we can divide this by two in order to get the radius:


24m=2r -->r=12m


So then we can plug this radius in to the equation for the area of a circle:


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A=3.14(144)


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Now we know that the area of this circle is 452.16 square meters.

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3 years ago
Laurissa rolls two number cubes, each with the numbers 1 though 6. Laurissa adds the numbers that appear on the roll. Which two
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Answer:

I will use the notation:

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Ok, each number cube has 6 options, so the total number of possible combinations is equal to the product of the number of options for each event we have two events (two number cubes).

Then:

C = 6*6 = 36

we have 36 possible combinations.

Now, let's look at the sums that have the same number of combinations (which would mean that have the same number of combinations).

For example, the lower result possible is two ones:

1 + 1 = 2

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And the maximum result possible is two sixes:

6 + 6 = 12

(only one outcome adds up to 12)

Then 2 and 12 have the same probability, 1/36.

Now we can keep loking at 2 + 1 and 12 - 1.

2 + 1 = 3

The outcomes that add up to 3 are:

1 + 2 = 3

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The outcomes that add up to 11 are:

6 + 5 = 11

5 + 6 = 11

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Then 3 and 11 have the same probability, 2/36.

And we can notice the pattern here.

4 and 10 will have the same probability 3/36

5 and 9 will have the same probability 4/36

6 and 8 will have the same probability 5/36

7 is the only option that does not have a pair, the probability is 6/36.

5 0
3 years ago
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Answer:

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you please do like this method

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2 years ago
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