Write an algebraic expression to represent the number of pens that can be bought with 30 cents if each pen costs c cents

1 answer:

5 0

Let's introduce another variable, let 'n' be any Natural Number (numbers from 1 to infinity). The number of pen you can by is given by:

n=30/c

n is your answer in this expression

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irga5000 [103]

Answer:

<u>Multiply</u> <u>3</u> on both sides.

Step-by-step explanation:

Subtract 22 on both sides so that the positive 22 can be canceled out and that the variable and one other number is left.

$\frac{f}{3} + 22 = 17$

$-22$ $-22$

You should then get this equation:

$\frac{f}{3} = -5$

Since there is division involved in $\frac{f}{3}$ , multiply both sides by three (Hint: Opposite of division is multiplication!) so that 3 would cancel out and that only the variable f is left.