Question

On monday maggie ran n miles, on tuesday she ran 90% of the number of miles that she ran on monday. on wednesday she ran 50% of the number of miles that she ran on tuesday.
move a symbol to the box and expressions to the blanks to create to equivalent expressions that represent the total number of miles maggie ran on monday, tuesday, and wednesday.

first expression: n+0.9n ____
second expression: _____n


+ x 0.45 0.45n 0.5 0.5n 1.35 1.5 2.35

Answer 1

Step-by-step explanation:

On Monday maggie ran n miles.

On Tuesday, she she ran 90% of the number of miles that she ran on Monday i.e $\dfrac{90}{100}\times n=0.9n$.

On Wednesday, she ran 50% of the number of miles that she ran on Tuesday i.e. $\dfrac{50}{100}\times 0.9n=0.45n$

First expression : n+0.9n = 1.9 n

Second expression : n + 0.9 n + 0.45 n = 2.35 n

Hence, this is the required solution.