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SIZIF [17.4K]
3 years ago
10

a school buys 200 calculators at a special price. x of them were scientific calculators at R 89 a piece and the rest were financ

ial calculators at R 599 a piece. an expression in terms of x,for the total number of calculators bought is?
Mathematics
1 answer:
garri49 [273]3 years ago
3 0
We have 200 calculators and x are scientific. That means (200-x) are financial.

Total cost = 89x + 599(200-x)
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<em>Multiply</em><em> </em><em>the </em><em>first </em><em>term</em><em> </em><em>by</em><em> </em><em>the</em><em> </em><em>second </em><em>term</em><em>.</em>

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<em>And </em><em>then</em><em> </em><em>multiply</em><em> </em><em>3</em><em> </em><em>by</em><em> </em><em>3</em><em>x</em><em> </em><em>and</em><em> </em><em>3</em><em> </em><em>by</em><em> </em><em>-</em><em>2</em>

<em>3</em><em>x</em><em>²</em><em>-</em><em>2</em><em>x</em><em>+</em><em>9</em><em>x</em><em>-</em><em>6</em>

<em>Group</em><em> </em><em>like</em><em> </em><em>terms</em>

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<em>Simpl</em><em>ify</em>

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<em>3</em><em>x</em><em>²</em><em>+</em><em>7</em><em>x</em><em>-</em><em>6</em>

8 0
3 years ago
Read 2 more answers
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