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4 years ago

Find the mean (average) 79% 85%,60%, 90%

Mathematics

2 answers:

PilotLPTM [1.2K]4 years ago

5 0

Add all of them up and then divide by how many numbers you have and you get

78.5

Softa [21]4 years ago

5 0

To find the mean, all we need to do is add up all the numbers then divide them by how many numbers there are

79 + 85 + 60 + 90 = 310

310 ÷ 4 = 77.5

Therefore the answer is %77.5

Hope this helps

-AaronWiseIsBae

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His sales per year should be 933333

<h3>What should be his sales per year?</h3>

The given parameters are:

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4 years ago

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Papessa [141]

The estimated solution is (0,0 ).

The algebraic solution is ( $\frac{2}{5},\frac{-2}{5})\\$

Step-by-step explanation:

We need to solve the system of equations:

$6x + y = 2\\x -4y = 2$

Solving using Elimination method

Let: $6x + y = 2\,\,eq(1)\\x -4y = 2\,\,eq(2)$

Multiply eq(1) by 4 and add eq(1) and eq(2)

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Putting value of x into eq(1)

$6x+y=2\\6(\frac{2}{5})+y=2\\\frac{12}{5}+y=2\\y=2-\frac{12}{5}\\y=\frac{10-12}{5}\\y=\frac{-2}{5}\\$

So, value of y is $y=\frac{-2}{5}\\$ Converting into whole number: y=0

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The algebraic solution is ( $\frac{2}{5},\frac{-2}{5})\\$

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