Jance spend from 7pm to 9pm doing her homework. She spend 3 times as mach time on her english project as she did on math. the science homework took twice as long as her math homework. How meny minutes did she spend on her science homework?
Let m = math time, then English = 3m and science = 2m.
m + 3m + 2m = 120 minutes
Solve for m, then 2m.
What mean (m) I don't anderstend.
Read my answer again. m = math time.
Pleas solve this sum
To find out how many minutes Jance spent on her science homework, we need to follow the information given step by step.
First, it's mentioned that Jance spent from 7pm to 9pm doing her homework. This means she spent a total of 2 hours on her homework.
Next, it says that she spent 3 times as much time on her English project as she did on math. Let's say she spent "x" minutes on math. Then, she spent 3 times x = 3x minutes on her English project.
After that, it's stated that her science homework took twice as long as her math homework. So, her science homework took 2 times x = 2x minutes.
To find out how many minutes Jance spent on her science homework, we need to add up the time she spent on math, English, and science homework, which should equal the total time she spent on homework (2 hours = 120 minutes).
x (math) + 3x (English) + 2x (Science) = 120
Combining like terms, we have:
6x = 120
Dividing both sides of the equation by 6, we get:
x = 20
Now that we know x = 20, we can substitute it back into 2x (Science) to find the answer:
2x = 2 * 20 = 40
Therefore, Jance spent 40 minutes on her science homework.