Answer:
![60\ school\ days](https://img.qammunity.org/2020/formulas/mathematics/high-school/wvk5w43tmtdebk95dqre40s7bd77sq7w27.png)
Explanation:
we know that
The fifth grade math book has 180 pages of problems to solve
so
using proportion
Find out how many school days will it take to finish the book if the students complete 3 pages each school day
Let
x -----> the number of school days
![(3)/(1)(pages)/(day)=(180)/(x)(pages)/(day)\\ \\x=180/3\\ \\x=60\ school\ days](https://img.qammunity.org/2020/formulas/mathematics/high-school/64iers1bdcpix6a63k7vyokfunpuqueuxa.png)