n=# of nickels
q=# of quarters
$12 is 1200 cents
5n+25q=1200
n=q
substitute q for n or n for q
5q+25q=1200
30q=1200
q=1200/30
q=40 quarters and therefore n=40 nickels
40 quarters is $10 and 40 nickels is $2, therefore you have $12
Hope this helps.
Answer:
the answer is 4√7
Step-by-step explanation:
Using Pythagoras Thereon
It is 16²+ 4²
= 256+16
= √272
= √16.49
= 4√7
Answer:Number of prints sold on these two days =42 Prints
Step-by-step explanation:
Number of prints sold on Monday = 24
Number of prints sold on Tuesday= 18
Number of prints sold on these two days =Number of prints sold on Monday +Number of prints sold on Tuesday= 24+ 18 = 42 Prints
It's a isosceles right angled triangle




N = (6*0.2)/0.06 = 20
The number is 20