He gave away 9 (20 x (3/7) =9) so 21-9=12
Answer:
Hey There the Answer to this is x = nickels
y= dimes
x + y = 34
.05x + .10y= $1.90
-.10x - .10y = -3.40
-.05x + .10y = 1.90
-.05x = -1.50
x = 30 nickels
30 + y = 34
y = 4 dimes
(3,4) And that you get the answer.
Hope it helps!
Answer:
on what
Step-by-step explanation:
Answer:
We conclude that:
Step-by-step explanation:
Given the radical expression
simplifying the expression
Remove parentheses: (-a) = -a
Apply radical rule:
Apply imaginary number rule:
Apply radical rule:
Apply radical rule:
Therefore, we conclude that: