1/2a+2/3b=50 when b=30?

Answers

Answer 1

The given equation is (1/2)a + (2/3) b = 50

and b = 30

Substituting the given value of b is above the equation we get

[tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{\Rightarrow\left(\frac{1}{2}\right)a+\left(\frac{2}{3}\right)\times30=50 } \end{gathered}$}[/tex]

[tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{\Rightarrow \left(\frac{1}{2}\right)a+20=50 } \end{gathered}$}[/tex]

[tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{\Rightarrow\left(\frac{1}{2}\right)a=50-20=30 } \end{gathered}$}[/tex]

[tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{\Rightarrow a = 30 \times 2 = 60 } \end{gathered}$}[/tex]

Therefore, a = 60 and b = 30 is a solution of the given equation.

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An algebraic expression is given. Use the expression to answer the following questions,

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Answers

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Step-by-step explanation:

For given expression x + 3 + 7x,

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b) the numerical coefficient of the first term = 1

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For given example,

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the numerical coefficient of the first term is 1.

c) for given expression x + 3 + 7x,

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d) for given expression x + 3 + 7x,

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Step-by-step explanation:

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