Make sure that whatever you do to one side, you must also do to the other. For each of the given values of n, you must find the corresponding value of M.

M + 3n = 7

For n = -2:
M + 3(-2) = 7
M + (-6) = 7
M - 6 = 7
M - 6 + 6 = 7 + 6 | adding 6 to both sides
M = 13

For n = 0:
M + 3(0) = 7
M + 0 = 7
M = 7

For n = 1:
M + 3(1) = 7
M + 3 = 7
M + 3 - 3 = 7 - 3 | subtracting 3 from both sides
M = 4

Hope this helps! :)

3 0

3 years ago

Work out the difference in value between 1/4 and 30%.

hammer [34]

1/4 is 25% and the other one is 30% so if ur has to be difference in percentage it would be 5%

5 0

3 years ago

The spinner is equally likely to land on any of the six sections.

andreyandreev [35.5K]

$|\Omega|=6\\ |A|=\underbrace{2}_{\text{greater than 4}}+\underbrace{3}_{\text{shaded}}-\underbrace{1}_{\text{shaded 5}}=4\\\\ P(A)=\dfrac{4}{6}=\dfrac{2}{3}$

6 0

4 years ago

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