Answer:
355 milliliter.
Step-by-step explanation:
Given:
A certain drug is made from only two ingredients: compound A and compound B.
There are 5 milliliters of compound A used for every 4 milliliters of compound B.
If a chemist wants to make 639 milliliters of the drug, how many milliliters of compound A are needed ?
Solution:
<u>As 5 milliliters of compound A is used for every 4 milliliters of compound B.</u>
Ratio of compound A and compound B = 5 : 4
Let ratio be
Quantity of compound A in milliliter =
Quantity of compound B in milliliter =
Now, we have to make 639 milliliters of the drug,
<u>Quantity of compound A + Quantity of compound B = 639 milliliters</u>
Dividing both sides by 9
Quantity of compound A in milliliter = =
Therefore, 355 milliliter of compound A are needed to make 639 milliliters of the drug.
Answer:
A & D
Step-by-step explanation:
Just plug in the possible answer choices into the equation to see if it makes sense. You'll find out that -18 and 18 work, while -9 and 9 doesn't.
Answer:
y = 2x
Step-by-step explanation:
calculate the slope of AB using the slope formula
m =
with (x₁, y₁ ) = A (8, 3) and (x₂, y₂ ) = B (12, 1 )
= = = -
given a line with slope m then the slope of a line perpendicular to it is
= - = - = 2
the equation of a line passing through the origin (0, 0 ) is
y = mx
here m = 2 , then
y = 2x ← equation of perpendicular line
Step-by-step explanation:
Degree of polynomial is the highest degree of the polynomials.
hence, 2 is the highest so
degree of the polynomial is 2.
and it's a Binomial option B.
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Answer:
i need points sorry
Step-by-step explanation: