Question

Please hurry will give brainliest
has 21 coins but they are only dimes and quarters she has $3 which system of equations can be used to determine the number of dimes and quarters she has?
A)d+q=21
0.1d+0.25q=3
B)d+q=3
0.1d+0.25q=21
C)d+q=3
d+25q=21
D)d+q=21
0.25d-0.1q=3

Answer 1

Answer:A and D: d+q=21

Step-by-step explanation:

We know that she has d dimes and q quarters in total it says she has 21 coins.

The question says that which equations can be used to determine the NUMBER of dimes and quarters she has? So we add d and q to get 21

Answer 2

Answer:

A and D: d+q=21

Step-by-step explanation: