Answer:
0.7143ans
Step-by-step explanation:
y=1/x
y=k/x
k=yx
given x=3,y=5
k=5×3=15
when y=21
x=k/y
x=15/21=0.7143ans
Answer:
what?????............. :O
1. x =-1
2. No solution
3. No solution
4. x = all real numbers
Answer:
Juanita is saving $0.10 a pound.
Step-by-step explanation:
Find the new price that the salesman offered her, by dividing the total price by the number of pounds of stones:
21.25 / 12.5
= 1.70
This means the new price is $1.70 a pound
Then, find the difference between the new price and the original:
1.80 - 1.70
= 0.10
So, Juanita is saving $0.10 a pound