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3 years ago

LINEAR EQUATIONS! 7(6-y)=-3(y-2)

Mathematics

1 answer:

BartSMP [9]3 years ago

7 0

Answer:

y=9

Step-by-step explanation:

Isolate the variable by dividing each side by factors that dont contain the variables

move variable to left side and change its sign

42-7y+3y=6 collect like terms

-7y +3y=6-42

-4y=6-42

-4y=-36 divide both sides of the equation by -4

y=9

hope that helps :)

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The manager of a newsagency conducted a survey to find out the most popular newspaper. He found that the sales ratio of the ‘Dai

den301095 [7]

Answer:

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Step-by-step explanation:

Multiplying the first ratio numbers by 4, we get ...

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and multiplying the second ratio numbers by 5, we get ...

wacky : truthful = 20 : 5

Then we can combine these ratios to ...

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Multiplying this set of ratio numbers by 5 again, we get ...

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3 years ago

The list shows numbers in order from least to greatest. -34, -2 .-1.5.0.2.3, 10,25 Which is an integer that can be integer on th

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Step-by-step explanation: I think

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3 years ago

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il63 [147K]

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2 years ago

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Answer:

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Hₐ: There is a significant difference between the observed and expected value, i.e. p₁ > 0.75.

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$\chi^{2}=\sum \frac{(O-E)^{2}}{E}$

Consider the tables attached below.

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*Use a Chi-square table.

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