Answer: 178%
Step-by-step explanation:
1780/1000 = 178/100
Angle PQR=90 degrees.
cos 52=PQ/14.72
PQ=14.72 x (cos 52)
PQ= 9 cm to the nearest cm
1/2 = 4/8
3/8 = 3/8
8 is the common denominator between these two fractions
Answer:
We have 16 ounces of 3% H2O2
How many ounces of 30% H2O2 do we add to make a 10% H2O2 solution?
let x = amount of ounces of 30% H2O2 to add
.03 * 16 + .30x = .10 * (16 + x)
.48 + .30x = 1.6 + .1x
.2x = 1.12
x = 5.6 ounces
Source:
https://www.1728.org/mixture.htm
Step-by-step explanation: