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Murrr4er [49]
3 years ago
8

Answer quick please? simplify the expression

Mathematics
2 answers:
sattari [20]3 years ago
8 0

Answer:

1/3

Step-by-step explanation:

So because of BODMAS / PEDMAS /  whatever you call it, you do the brackets first.

(7-2) = 5

5 squared is 25

So 25 is on the top.

Then we do the bottom one. We do square/cubed/quadrupled numbers first, so 3 to the power of 4 is 81.

4+81=85

85-10=75

So the bottom number is 75.

25 / 75 is the fractions so simplified that would be 1/3

Varvara68 [4.7K]3 years ago
6 0

Answer:

5/3

Step-by-step explanation:

i did math lol

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Read 2 more answers
A patient is given a solution containing 0.625 g of calcium carbonate. If the calcium carbonate solution contains 1250 mg per 5
Dmitrij [34]

Answer: 2.5 mL

Step-by-step explanation:

Given : A patient is given a solution containing 0.625 g of calcium carbonate.

i.e. Patient required calcium carbonate = 625 mg  [∵ 1 g = 1000 mg]

Let x be the amount of solution ( in millimeters) given to the patients.

Ratio of amount of calcium carbonate (mg) to amount of solution (ml) =\dfrac{625}{x}

If the calcium carbonate solution contains 1250 mg per 5 mL,

Then, Ratio of amount of calcium carbonate to amount of solution =\dfrac{1250}{5}

By using proportion we have :-

\dfrac{625}{x}=\dfrac{1250}{5}\\\\\Rightarropw\ x=\dfrac{5\times625}{1250}=2.5

Hence, 2.5 mL solution were given to the patient.

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