exam Maths Puzzle Numerical Ability

i need to know how to write 54.0007 in standard form and expanded form

Read Solution (Total 0)

exam Other Question

Can you help me with this equation?

If Ben invests $3400 at 5% interest per year, how much additional money must he invest at 6.5% annual interest to ensure that the interest he receives each year is 5.5% of the total amount invested? Translate to an algebra statement. Seven times the difference of six and twice a number yields the same result as the same number decreased by one.

So far I have came with this. I am not if this is correct.

7(6-2x) = 7(6-2X)-1