Answer:
$7
Step-by-step explanation:
I ordered 4 new CD's by mail. Each CD costs the same amount and there was an additional $5 shipping charge that brought the total to $33. Write and solve the equation to find the cost of one CD.
Let us represent the cost of 1CD = x
Total cost = $5 + 4x
= 5 + 4x
Total cost = $33
Hence, our Equation is given as:
33 = 5 + 4x
4x = 33 - 5
4x = 28
x= 28/4
x = $7
The cost of 1 CD = $7
Step-by-step explanation:763
Answer:square root 130
41/15
I don't know
On the right side, there are
• 2•2 = 4 atoms of Nb
• 2•5 = 10 atoms of O
so among the reactants on the left, the reaction is balanced as
4 Nb + 5 O₂ → 2 Nb₂O₅
