The ratio of red cars to blue cars in the parking lot was 8:7. If there were 48 red cars, how many blue cars were there?

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Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.