When a certain kind of bacterium takes a step, it moves 3 × 10-7 meters. When Joe takes a step, he moves 0.75 meters. How many times larger is Joe's step than the bacterium's step? Joe's step is
× 10^
times larger than the bacterium's step.

answer: 48

just remember to use pemdas:

parentheses

expressions

multiplication

division

addition

subtraction

.

step-by-step explanation:

.

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,