Answer:
Man has 9 Nickels and 7 dimes.
Step-by-step explanation:
Let Number of dimes be x
and Number of Nickels be y
As Per given data he has two more nickels than dimes.

As we know that
1
= 100 cent
1 nickel is worth = 5 cents =
= 0.05
1 dime is worth = 10 cents =
0 .1
According to given data he has
total nickel and dimes
So the equation becomes,

but 

Substituting value of x in equation
we get

Man has 9 Nickels and 7 dimes.
Answer:
Option B) (-1,7,5) is correct.
The solution to the given system of equation is (-1,7,5)
Step-by-step explanation:
Given system of equations are



To find the solution of the given system of equations by using Elimination method:
Now adding equations (1) and (2)


_________________

________________


(since "-" getting cancelled)
Now adding equations (1) and (3)


_________________

________________



Now adding equations (4) and (5)


_________________

________________

Therefore y=7
Substituting y=7 in equation (4)




Therefore x=-1
Now substituting the values x=-1 and y=7 in equation (1) we get




Therefore z=5
Therefore the solution to the given system of equation is (-1,7,5)
Therefore Option B) (-1,7,5) is correct.
A is 10 and 12
C is 4 and 8
Conversion:
1 degree = 3600 arc-seconds.
Using the conversion:
→ To find a value in arc-seconds, you multiply the value in degrees by 3600.
→ To find the value in degrees, you divide the value in arc-seconds by 3600.
Hope it helped,
BioTeacher101
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Answer:
600
Step-by-step explanation: