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r-ruslan [8.4K]
3 years ago
9

30m + 45m = 150 pls help!

Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
5 0

Answer:

m = 2

Step-by-step explanation:

30m + 45m = 150

75m =150

÷75    ÷75

m = 2

Minchanka [31]3 years ago
3 0

Answer:

m = 2

Step-by-step explanation:

30m + 45m = 150

75m = 150

m = 150/75

m =2

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\bf \stackrel{\textit{using elimination}}{ \begin{array}{llll} 3x+2y=42&\times -1\implies &\begin{matrix} -3x \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~-2y=&-42\\ 3x+8y-72 &&~~\begin{matrix} 3x \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~+8y=&72\\ \cline{3-4}\\ &&~\hfill 6y=&30 \end{array}} \\\\\\ y=\cfrac{30}{6}\implies \blacktriangleright y=5 \blacktriangleleft \\\\[-0.35em] ~\dotfill

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3 years ago
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Vsevolod [243]

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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6 0
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Read 2 more answers
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