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yKpoI14uk [10]
3 years ago
13

2,-2,2,-2 .... is an example of an infinite alternating sequence A. True B. False

Mathematics
1 answer:
navik [9.2K]3 years ago
3 0

Answer:

True

Step-by-step explanation:

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A boy has only dimes and quarters in his piggy bank. if he has 70 coins worth 12 dollars and 40 cents altogether, how many quart
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Let us bear in mind the equivalent value of these coins: 

One dime = $0.10 

One quarter = $0.25 

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        y<span> = number of quarters</span> 

Since the boy has 70 coins in total, we can say that: 

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To solve this problem, we need to solve this system of equation. We have to substitute the value of x as written in the first equation (x = 70 –y) 

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X = 70 – 36 

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Therefore,<span> the boys </span>has<span> 34 dimes and 36 quarters. To check our answer, we just have to check if his money would total $12.40.</span> 

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