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.
9514 1404 393
Answer:
2
Step-by-step explanation:
The given angle is opposite the shorter of the given sides, so there are two possible triangles.
__
<em>Additional comment</em>
The law of sines tells you that sin(A) = a/c·sin(C). There will be 0 triangles if that is greater than 1. There will be 1 triangle if that is exactly 1 (unlikely with rational values of sides and angles). There will be 2 triangles if sin(A) < 1, as it is here.
Answer:
= 98 + 7c or = 7(14+c)
Step-by-step explanation:
7(6+c+8)
7*6 + 7c + 7*8
= 42 + 7c + 56
= 98 + 7c
= 7(14+c)