y=5/2x-4
Step-by-step explanation:
im pretty sure
<span>let n+2=u
so, the equation became= [2/u]-[3/u]=5
=> [(2+3)/u]=5
=> 5/u=5
=> u=5/5=1
thus, u=1
we know u=n+2
so, n+2=1
=> n=1-2=-1
so, n=-1</span>
Answer:
11.9
Step-by-step explanation:
390=290e^(.025x)
x=11.85 which rounds to 11.9
Let x be the number of pennies which is also equal to the number of dimes. By this representation, the number of quarters is equal 46 - 2x. The total amount is $4.87 or 487 cents. The equation that best represent the given is,
x + 10x + 25(46 - 2x) = 487
The value of x from the equation is 17. Therefore, there are 17 of both pennies and dimes and 12 quarters.
Step-by-step explanation:
-2.8 +2.4=-.4
-.4+7.8=7.4
7.8-2.8=5
i hope this helps ; )