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RSB [31]
3 years ago
11

Aaron received a $25 gift card for his birthday. He used it to download a game for $3.99

Mathematics
2 answers:
MissTica3 years ago
5 0
21 \geq x



25 \geq 0.99x + 3.99

25-3.99 \geq  0.99x + 3.99-3.99  (Subtract 3.99 on both sides)

21.01/0.99 \geq 0.99x/0.99  (Divide 0.99 to isolate x)

21.01/ 0.99 is 21.222 bar, so round it to the nearest ones place, which is 21.

21 \geq x

Check:

0.99(21)+3.99  (Multiply)

20.79+3.99  (Add)

24.78, which is $25.








qaws [65]3 years ago
5 0
25 <span>≥ 0.99x + 3.99

Subtract 3.99 to both sides:

21.01 </span><span>≥ 0.99x

Divide 0.99 to both sides:

21.22 </span><span>≥ x

x </span><span>≤ 21.22

So he can buy less than or equal to 21 songs.</span>
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