He walked 4.2 miles each hour. Because 12 divided by three is 4 and 6 divided by 3 is 2. :D
Answer:
look to rule number five
Step-by-step explanation:
Rule Number 5 best explains the answer
Answer:
because .47 rounded up is .5
<span>The answer of Faith mixes 14 liters of 12% acid solution with a 30% acid solution, which results in an 18% acid solution. Let x represent the number of liters of 30% acid solution used, and let y represent the number of liters of mixture. Which system of equations can be used to find the number of liters of 30% acid solution in the mixture? is c.</span>
9514 1404 393
Answer:
21, 3
Step-by-step explanation:
Let the first and second numbers be x and y, respectively. Then we have ...
x + y = 24 . . . . their sum is 24
x = 8y -3 . . . . . the first is 3 less than 8 times the second.
Substituting for x in the first equation, we have ...
(8y -3) +y = 24
9y = 27 . . . . . . . . add 3
y = 3 . . . . . . . . . . divide by 9
x = 8(3) -3 = 21
The two numbers are 21 and 3.
