exam Maths Puzzle Numerical Ability

Please help me!The problem is:
An investment of $1500 paid interest of $45 during a certain period. How much interest would an investment of $2000 invested at the same rate for the same length of time pay?
Please and Thank you=)

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i need big help !!!!! plez and thank you



x + 3x = 17
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4 5



x over 4 plus 3x over 5 = 17


i plez need big help !!!!


thanks


Kay A rectangular swimming pool is twice as long as it is wide. A small walkway surrounds the pool. The walkway is a constant 2 feet wide and has an area of 196 square feet. Find the dimensions of the pool.: