Answer:
Hope this helped.
A brainliest is always appreciated.
Equation 1. N+D=500
equation 2 5N+10D=3000
This is for equation 1
N=500-d
Substitute into equations 2 and solve for D
5N+10D=3000
5(500-D)+10D=3000
2500-5D+10D=3000
5D=500
D=100
Lets go back the equation 1
N=500-D
N=500-100
N=400
there are 400 Nickles and 100 Dimes
Hydrosphere
hydro means water
Answer:
True: the leading coefficient in the monomial is -7
Step-by-step explanation:
Math
N3Y+7 can have infinate solutions
