Why is substitution sometimes more helpful than elimination?

1 answer:

5 0

Substitution method is not better or worse than any other method of solving ... Sometimes substitution can be easier than using elimination or graphing. ... Maybe you would like to learn more about one of these?

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Calculate (a) the number of milligrams of metoclopramide HCl in each milliliter of the prescription:

nalin [4]

Answer:

There are 100 milligrams of metoclopramide HCl in each milliliter of the prescription

Step-by-step explanation:

When the prescription says Purified water qs ad 100 mL means that if we were to make this, we should add the quantities given and then, fill it up with water until we have 100 mL of solution, being the key words qs ad, meaning sufficient quantity to get the amount of mixture given.

Then, knowing there is 10 grams of metoclopramide HCl per 100 mL of prescription, that means there is (1 gram = 1000 milligrams) 10000 milligrams of metoclopramide HCl per 100 mL of prescription. That is a concentration given in a mass/volume way.

Knowing the concentration, we can calculate it per mL instead of per 100 mL

$Concentration_{metoclopramide HCL}= \frac{10000mg}{100mL} =100 \frac{mg}{mL}$

7 0

3 years ago

Jane moves from a house with 71 square feet of closet space to an apartment with 45.44 square feet of closet space. What is the

motikmotik

Answer:

45.44/71 - 1 = -0.36 = -36%

36% decrease.

7 0

3 years ago

A biologist tags 25 birds with a band on their foot and lets them go back into the wild. The next year 100 total birds are captu

mestny [16]

Answer:

We can estimate a population of 500 birds.

Step-by-step explanation:

We can estimate the total bird population using a rule of three with the information given:

If we find 5 birds with the foot band among 100 birds captured, how many birds there are in total if inicially we put foot bands in 25 birds?

5 birds with foot band -> 100 birds captured

25 birds with foot band -> X total birds

X * 5 = 25 * 100

X = 25 * 100 / 5 = 500 birds

We can estimate a population of 500 birds.

7 0

3 years ago

What's bigger? (6×5)⁷÷(-3)⁷ or (6×5)⁴÷(-3)⁴

max2010maxim [7]

The second one is bigger as the square is a even number with the negative whole

7 0

3 years ago

Please help me!!!!!!

Genrish500 [490]

Aye do 9*9*6 then it gives u the answer

8 0

3 years ago