Mary has been 5 1/2 hours to finish her community service program in a community health clinic last week she was able to spend three 3/4 hours which equation can be used to determine number hours eight that married still needs to spend to complete her service program
The equation that can be used to determine the number of hours Mary still needs to spend to complete her service program is:
Total hours needed - hours already spent = hours Mary still needs to spend
Let's calculate the total hours needed:
Mary needs to spend 5 1/2 hours in total.
To convert 5 1/2 into a fraction, we have 5 + 1/2 = 5/1 + 1/2 = 10/2 + 1/2 = 11/2 hours.
Now, we can use the equation:
11/2 - 3 3/4 = ? (hours Mary still needs to spend)
To solve this equation, let's find a common denominator:
11/2 - (3 * 2/2 + 3/4)
11/2 - (6/2 + 3/4)
11/2 - (12/4 + 3/4)
11/2 - 15/4
Now, let's subtract the fractions:
11/2 - 15/4
(11 * 2)/(2 * 2) - 15/4
22/4 - 15/4
(22 - 15)/4
7/4
Therefore, the equation can be used to determine the number of hours Mary still needs to spend to complete her service program is:
7/4 hours.
To determine the number of hours Mary still needs to spend to complete her service program, we can use the equation:
Total hours needed - Hours Mary has already spent = Hours Mary still needs to spend
In this case, Mary has already spent 3 3/4 hours last week. We need to subtract this from the total hours needed, which is 5 1/2 hours.
Let's convert the mixed numbers to improper fractions:
Total hours needed = 5 1/2 = (2*5 + 1)/2 = 11/2
Hours Mary has already spent = 3 3/4 = (4*3 + 3)/4 = 15/4
Now we can write the equation:
11/2 - 15/4 = Hours Mary still needs to spend
To subtract fractions, we need to find a common denominator, which in this case is 4. So, we convert 11/2 to the same denominator:
11/2 = (11*2)/2 = 22/4
The equation becomes:
22/4 - 15/4 = Hours Mary still needs to spend
Now we can subtract the numerators and keep the common denominator:
(22 - 15)/4 = Hours Mary still needs to spend
Finally, we simplify the numerator:
7/4 = Hours Mary still needs to spend
Therefore, the equation that can be used to determine the number of hours Mary still needs to spend to complete her service program is:
7/4 = Hours Mary still needs to spend
To determine the number of hours that Mary still needs to spend to complete her service program, we can subtract the number of hours she has already spent from the total number of hours required.
Mary has already spent 3 3/4 hours last week, and this week she spent an additional 5 1/2 hours. So the total time she has spent is:
3 3/4 + 5 1/2
To add these mixed numbers, we need to convert them to improper fractions:
3 3/4 = (4 * 3 + 3) / 4 = 15/4
5 1/2 = (2 * 5 + 1) / 2 = 11/2
Now we can add the time:
15/4 + 11/2
To add these fractions, we need to have a common denominator. The least common multiple of 4 and 2 is 4. So we need to convert the fractions to have a denominator of 4:
15/4 = (15/4) * (1/1) = 15/4
11/2 = (11/2) * (2/2) = 22/4
Now we can add the fractions:
15/4 + 22/4 = 37/4
So Mary has spent a total of 37/4 hours.
To determine the number of hours she still needs to complete her service program, we subtract the time she has spent from the total required time. Let's say the total required time is T hours. The equation becomes:
T - 37/4 = number of hours Mary still needs to spend
Therefore, the equation that can be used to determine the number of hours Mary still needs to spend to complete her service program is:
T - 37/4 = number of hours Mary still needs to spend