Which ordered pair makes the equation true? 4x – 9y = –5 (–5, –2) (–1, 1) (10, 5) (20, 4)
1 answer:
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Answer:
100 liters of 10% solution is used and 20 liters of 40% solution is used
Step-by-step explanation:
Let "X" amount of 10% solution is used. Then the amount of 40% solution used is equal to 120-X
Now
10% of X + 40% of (120-X) = 15% of 120
On solving the above equation, we get
liters
Amount of 40% solution used = 120 -X = 120-100 = 20 liters
100 liters of 10% solution is used and 20 liters of 40% solution is used
Given:
Circle C and circle R are similar.
The length of arc AB is
The radius of circle C (AC) = 4 unit
The radius of circle R (QR) =6 unit
To find the length of arc QP.
Formula
The relation between s, r and is
where,
s be the length of the arc
r be the radius
be the angle.
Now,
For circle C
Taking r = 4
According to the problem,
or, [ eliminating
from both side]
or,
or,
Again,
For circle R
Taking, r = 6 and we get,
The length of arc QP is
or,
Hence,
The length of QP is . Option C.
Greetings and Happy Holidays!
Find the Product:
Expand:
Use FOIL or other techniques to solve binomial multiplication:
Combine like terms:
The Answer Is:
I hope this helped!
-Benjamin
Find the Product:
Expand:
Use FOIL or other techniques to solve binomial multiplication:
Combine like terms:
The Answer Is:
I hope this helped!
-Benjamin