## Elementary Algebra

47 = 4.7 $\times$ $10^{1}$
We need to write 47 as the product of a number greater than or equal to 1 and less than 10 and an integer power of 10. The number greater than or equal to 1 and less than 10 will be 4.7 The decimal point has moved 1 place, so the exponent of 10 will be 1. So, 47 = 4.7 $\times$ $10^{1}$