University theater sold $525 tickets for a play. Tickets cost &21 per adult and $12 per senior citizen. If total receipts we
1 answer:
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Answer:
1st option
Step-by-step explanation:
4 ÷ 2
( change mixed numbers into improper fractions )
= ÷
To perform the division
leave 1st fraction, change ÷ to × , turn 2nd fraction ' upside down'
= ×
Answer:
3 a : 2 b = 6 : 1
Step-by-step explanation:
<em> =
</em>
<em>3 ( a + b) = 5 ( a - b) </em>
<em>3 a + 3 b = 5 a - 5 b </em>
<em>5 b + 3 b = 5 a - 3 a </em>
<em> 8 b = 2 a </em>
<em> 2 a = 8 b</em>
<em><u>a = 4 b</u></em>
<em>3 a = 3 × 4 b</em>
<em><u>3 a = 12 b</u></em>
<em>3 a: 2 b = 12 b : 2 b</em>
<em>3 a : 2 b = 6 : 1</em>