I didn't see an answer from yesterday, so resending. Also, is there a website to explain how to solve word problems - like key phrases to look for (ex: 'in all' - add; 'what's left' - subtraction)?

Here's question from yesterday:
sorry,but I don't understand word problems - like what formula/expression to use. Here's the 1st problem: Rob practiced 3/5 of his music in 25minutes. About how long does it take to practice all of his music?

I know that Rob has 2/5 left of music to practice. So, do I multiply 2/5 by 25minutes?

Here's the 2nd problem: Jared vowed to walk 100miles a month. If he can walk 1/2mile in 20minutes, how many minutes will it take him to walk 100miles?

In this case, do i multiply 100 by 1/2, then multiply by 20minutes?

1: 41.66 minutes

(25*5)/3
2.: 4000 minutes
(100*20)/(0.5)

Could you explain why you divided 25 by 3/5?

For the first question divide 3 in two 25 your answer is the equation subtracted from 25

2nd question=200×20=your answer

To solve word problems like these, it's important to understand the information given and carefully analyze what you are trying to find. Let's break down each problem step by step:

1. Rob practiced 3/5 of his music in 25 minutes. You correctly identified that Rob has 2/5 (the remaining fraction) of his music left to practice. To find out how long it takes for him to practice all of his music, multiply the fraction of music left (2/5) by the time it took to practice 3/5 of his music (25 minutes). This can be done using the formula: (fraction of music left) x (time taken to practice 3/5 of music). So, in this case, you would multiply 2/5 by 25 minutes to find the answer.

2. In the second problem, Jared can walk 1/2 mile in 20 minutes. To find out how many minutes it will take him to walk 100 miles, you need to determine the number of times he needs to walk 1/2 mile to reach 100 miles. Multiply the number of times (100 miles) by the time it takes him to walk 1/2 mile (20 minutes). So, in this case, you would multiply 100 by 1/2 and then multiply the result by 20 minutes to find the final answer.

As for a website that explains how to solve word problems and identifies key phrases, there are several educational websites and resources available. One website that specifically focuses on math word problems is MathPlayground.com. They provide various word problems and offer step-by-step explanations with key phrases to help you solve them. Additionally, Khan Academy, Purplemath, and MathisFun are popular educational websites that provide comprehensive explanations and examples of different types of word problems.

Remember, practicing solving word problems and familiarizing yourself with different problem-solving strategies will improve your skills over time.