Question

Robbie is preparing for a marathon. Altogether, Robbie ran a total of 43 miles. How many miles did

Robbie run on Friday? Here is his training schedule:
• Monday: ran x miles.
• Tuesday: ran double the miles he ran on Monday.
• Thursday: ran half the miles he ran on Monday,
• Friday: ran triple the miles he ran on Monday morning plus 4 more miles in the evening.

Please show the equation to solve for it, the answer, and the steps of solving the equation. Thank you~​

Answer 1

13 miles

Explanation:

43-4=39 you use the inverse operation. you subtract 4 from 4, you get 39.

39/3=13 then, you also do the inverse operation. you divide 39 by 3, you

get 13 as your answer.