Answer:
Step-by-step explanation:
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First you multiply 20 by .15 and you get 3. Subtract 3 by 20 and you get 17. Now multiply $17 by 30 and you get 510. She spent $510 on 30 calculators
Answer:
Distributive property
Step-by-step explanation:
The distributive property tells you ...
a(b+c) = ab +ac
Here, you have a=4, c=2, so ...
4(b+2) = 4·b + 4·2 = 4b +8
Relative frequency : total number of diamonds / total number of cards drawn = 11/40=0.3
The answer is 30% : C
