Mr.Lopez had $75.00. He bought his wife a gift for $45.00. What percentage of his money did he spend on the gift for his wife?
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Answer:
<em>There are 142 whole numbers less than 1000 and divisible by 7.</em>
Step-by-step explanation:
The multiples of 7 form an arithmetic sequence like shown:
7, 14, 21, ...
The last term of this sequence can be found by dividing 1000/7=142.9 and rounding down to the previous integer: 142*7= 994.
Thus, the sequence has:
a1=7, r=7, an=994. We need to find n and we'll do that by using the general term formula:
And solving for n:
n = 142
There are 142 whole numbers less than 1000 and divisible by 7.