Answer:
- 750 mL of 0.23% solution
- 250 mL of 0.03% solution
Step-by-step explanation:
Let x represent the quantity (in liters) of the higher percentage solution, the 0.23% solution. Then 1-x will be the quantity of 0.03% solution. The amount of salt in the mix is ...
0.23%·x +0.03%·(1 -x) = 0.18%·1
Multiply by 100% and subtract 3:
20x = 15
x = 15/20 = 0.75 . . . . liters of 0.23% solution
1-x = 1-0.75 = 0.25 . . liters of 0.03% solution
The lab tech needs 750 mL of 0.23% solution and 250 mL of 0.03% solution.
Answer:
In the number 528.8 the value of 8 in the ones place is 10 times the value of 0.8 in the tenths place
Step-by-step explanation:
we have
The number 528.8 miles
Rewrite the number in digits value

so
The value of the ones digit is 8 ones or 8
The value of the tenths digit is 0.8 tenths or 0.8
Find the quotient
8/0.8=10
therefore
In the number 528.8 the value of 8 in the ones place is 10 times the value of 0.8 in the tenths place
Linear because the slope will always be the same
well im guessing it the average highway speed 60 mph so it is $7