Respuesta :
A) N + 2 = Q
B) .05N + .25Q = 2
A) N -Q + 2 = 0
multiplying B) by 4
B) .2N + Q = 8
then we add A and B
1.2N +2 = 8
1.2N = 6
Nickels = 5
Quarters = 7
B) .05N + .25Q = 2
A) N -Q + 2 = 0
multiplying B) by 4
B) .2N + Q = 8
then we add A and B
1.2N +2 = 8
1.2N = 6
Nickels = 5
Quarters = 7
Answer:
nickles = 5
quarters = 7
Step-by-step explanation:
Let no. of nickles be x , then no. of quarters be x + 2
As nickles are 5 cent of a dollar and quarter are 25 cent of a dollar, So
5% of x + 25% of ( x + 2 ) = 2
[tex]\frac{5}{100}\cdot x + \frac{25}{100}\cdot (x+2)=2\\\frac{x}{20} +\frac{x+2}{4}=2 \\x=5[/tex]
So, no. of nickles = 5 and no. of quarters = 7
Total no. of coins = 12