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Answer:
30 students
Step-by-step explanation:
24 over 80 is equal to x over 100
cross multiply and you get
80x =240
divide 80 on both sides
you get 3
add an extra sero
Answer:
½ and 14/28
Step-by-step explanation:
If a pair of ratio forms a proportion, they are equal.
First pair of ratios:
4/5 =10/13
Convert to the least common denominator (4 × 13)/65 = (10 × 5)/65
52/65 ≠ 50/65
The first pair of ratios is <em>not</em> a proportion.
Second pair of ratios:
7/8 =15/18
Convert to the least common denominator (7 × 9)/72 = (15 × 4)/72
63/72 ≠ 60/72
The second pair of ratios is <em>not</em> a proportion.
<em>Third pair of ratios:
</em>
½ =14/28
Convert to the least common denominator (1 ×14)/28 = 14/28
14/28 = 14/28
½ = 14/28
½ and 14/28 form a proportion.
Answer:
54
Step-by-step explanation:
Answer:
The Columbian Exchange. Hopefully this is right :)
Step-by-step explanation: