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Anna11 [10]
3 years ago
13

Order of operations

Mathematics
2 answers:
oee [108]3 years ago
4 0
Use the PEMDAS rule. So first do whatever is in the parenthesis. 8 squared is 64 so 65-64 is 1 and 1-2 is -1
dedylja [7]3 years ago
4 0
You would first do 13x5 which equals 65, then you would 8x8 which equals 64, then you would subtract 65-64 which equals 1, finally you would subtract 2-1, which equals 1, im pretty sure im right, but dont be afraid to tell me if im wrong :)
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Juan tiene cubos azules de 55 mm de arista y cubos rojos de 45 mm de arista. Los apila en dos columnas, una de cada color ; quie
balu736 [363]

the question in English

Juan has blue cubes with a 55 mm edge and red cubes with a 45 mm edge. He stacks them in two columns, one of each color; he wants the two columns to be the same height. How many cubes does he need, as a minimum, of each color?

Let

x---------> the number of blue cubes

y--------> the number of red cubes

we know that

Juan wants that  the two columns to be the same height

so

55x=45y

solve for y

y=\frac{55}{45}x

I proceed to calculate a table, assuming values of x to calculate the value of y. When the values of x and y are whole numbers, I will have found the solution.    

the table in the attached figure

therefore

<u>the answer is</u>

9 blue cubes

11 red cubes

7 0
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