I believe its D, 7.5% But check it with other sources because IM not 100% positive!
Answer:
0.06 liters
Step-by-step explanation:
acid concentration of 65% means that it of 100 units of that solution 65 are acid, and the remaining 35 are water.
so, 100 units are 0.2 liters in this example.
that means that 65/100 × 0.2 = 0.13 liters are acid.
35/100 × 0.2 = 0.07 liters are water
we get a 50% concentration, when we have the same amount of water and acid in the solution (acid is only half of 50% of the solution).
the account of acid remains the same, as we are only adding water.
so, how much water do we need to get from 0.07 liters to 0.13 liters (the same as the already present acid) ?
0.13 - 0.07 = 0.06 liters
Answer:
y^2-y^1 over x^2-x^1 is slope intercept form
Answer:
a.the car is traveling at the speed of 126 km/h
b.the car will cover 630 km in 5 hours
Step-by-step explanation:
first of all we will convert meter in kilometer and second in hour
1 m = (1/1000) km
1s = (1/3600) h
35m/s = 30m/s *(1/1000)km/m *(3600)s/h
now we will cancel the units
35m/s = 35 *(1/1000)km *(3600)/h
= 0.035 * 3600
= 126km/h
