Please help, will be marked brainliest and given points if correct and explained good!

Mathematics

2 answers:

Digiron [165]3 years ago

8 0

Hm ok, so the answer here would be 9/40

Kinda big right? Heres my reasoning:

To find the answer when the denominators and different, you cross multiply using each of the bottom numbers like this:

$\frac{5}{5} \frac{*}{*} \frac{5}{8}=\frac{25}{40} \\\\\frac{8}{8} \frac{*}{*} \frac{2}{5} =\frac{16}{40}$

Then we subtract 16 from 25 to get 9.

I would like to simplify, but 40 and 9 don't have any common denominators unfortunately.

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Gelneren [198K]3 years ago

6 0

Answer:

Step-by-step explanation: 2 out of 5 parts will be used to purchase the computers for this new library

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jekas [21]

Answer:

a) 10*10 inch, b)yes, c) 15

Step-by-step explanation:

we need to calculate the Greatest Common Factor between 30 and 50

$30 = 2 \times 3 \times 5 \\ 50 = 2 \times 5 \times 5 \\ GCM = 2 \times 5 = 10$

then, the square tiles will be 10 inch *10 inch

b) it will change because they don't need to have the largest slab possible so they will use any other comon factor with a size they consider correct for the cheese.

$30 \div 10 = 3 \\ 50 \div 10 = 5 \\ 3 \times 5 = 15$