Suppose x quarts of the 50% solution
0.5x+0.2*20=0.4(x+20)
0.5x+4=0.4x+8
0.1x=4
x=40
Answer:
XYZ= 66.4
Step-by-step explanation:
0.016 is the city tax I got this by multiplying 0.2 times 0.08
and whenever you multiply smaller number the number go down
helpful tips.....................
whenever you want to find the percentage of something just multiplay by the percentage by the full number
ex: 7 percentage of 100
100 times 0.07
Put everything on the same side of the equals sign and set it equal to zero so you can factor it.
. In order to factor that you have no choice really but to put it into the quadratic formula. When you do that you find that your zeros are x = 9.623475383 and -.623475383
Answer:
The family traveled at 45 miles per hour.
Step-by-step explanation:
