Quote from Cherelle Ashlee
Can anyone help me with this math equation please!! This is my last question but I cant seem to get it ( This is system of equations)
At the beginning of a new semester, Andy makes plans for a successful semester. He allocates 42 hours per week for study time for the four courses he is taking: Math English, Chemistry and History. He decides to allocate half of his time to Math and English, and two as much time to Math as to English. He decides to allocate twice as much to English as to History.
a) find a sytem of equations that represents this information.
b) solve the system to determine the number of hours allocated to each subject.
Can anyone help please!!
At the beginning of a new semester, Andy makes plans for a successful semester. He allocates 42 hours per week for study time for the four courses he is taking: Math English, Chemistry and History. He decides to allocate half of his time to Math and English, and two as much time to Math as to English. He decides to allocate twice as much to English as to History.
a) find a sytem of equations that represents this information.
b) solve the system to determine the number of hours allocated to each subject.
Can anyone help please!!
ok if im right we did this recently and if i remember you would do something like
21=2e+e
variables:
2e=math
e=english
1/2e=history
42=2x+x+1/2x+c
this should solve this one
x= first equations value for e
c= value for chem
21=2e+e >> 21/3=e >> e=7 hr
so history should be 4 hr
math 16hr
english 8hr
42=3.5+14+7+c
42-24.5=24.5-24.5+c
17.5=c
there for your answer is chem=17.5, english=7, math=14, history=3.5
this is at least how i was taught where i live last year