Question

2. Write an algebraic expression for the total number of minutes in h hours and 20 minutes.
3. Write an algebraic expression for the total number of hours in 2 hours and x minutes.
4. Write an algebraic expression for the total number of hours in y hours and 45 minutes.

Answer 1

Answer:

The expressions are:

2. $60h+20\ minutes$

3. $2+\frac{x}{60}\ hours$

4. $y+0.75\ hours$

Step-by-step explanation:

The given expressions have to be converted into algebraic expressions.

So,

2. Write an algebraic expression for the total number of minutes in h hours and 20 minutes.

Here,

h is a variable that can have any value but the 20 minutes will remain same with any number of hours.

If h is for hour, the number of minutes in h hours will be: $60*h = 60h$

And there are also 20 minutes so the algebraic expression is:

$60h+20\ minutes$

3. Write an algebraic expression for the total number of hours in 2 hours and x minutes.

In order to convert minutes into hour, the minutes are divided by 60

So converting x minutes into hour means

$x\ minutes = \frac{x}{60}\ hours$

There are 2 hours already so the expression will be:

$2+\frac{x}{60}\ hours$

4. Write an algebraic expression for the total number of hours in y hours and 45 minutes.

Converting 45 minutes to hours by dividing by 60

$45\ minutes = \frac{45}{60}\ hours = 0.75\ hours$

The expression is:

$y+0.75\ hours$

Hence,

The expressions are:

2. $60h+20\ minutes$

3. $2+\frac{x}{60}\ hours$

4. $y+0.75\ hours$