Adina a colectionat 32 de cartonase cu fluturi. ea schimba 8 cartonase cu fluturi pentru cartonase cu pesti. daca un cartonas cu fluturi valoreaza cat 3 cartonase cu pesti, afla cate cartonase are fetita acum.

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Solve this 364x-64x=300x and 12(x2–x–1)+13(x2–x–1)=25(x2–x–1)

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent