# How to solve these math problems

**Question description**

1.the ratios of teachers;male students;female students in a school are 2;17;18.

The total number of STUDENTS is 665.

Find the number of teachers.

2. Work out as a single fraction:

2/x-3 - 1/x+4

3.p is the largest prime number between 50 and 100

q is the smallest number between 50 and 100

calculate the value of p-q

4. A cyclist left Melbourne on Wensday 21th may at 9;45 to travel to sydney. the journey took 97 hours. write down the day, date, and time the cyclist arrived in sydney.

5. solve the simultaneous equation

2x+y/2=7 2x-y/2=17

I will really appreciate it if you can answer at least any of these questions.

Thank you

Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors