Is there something missing on the third option? None of the other options are wider
The 8 in position 4 (from the left) means 800 and the 5th 8 means 80
so position 4 8 is ten times the the next 8. - as you would expect because its the decimal system based on 10.
difference = 800-80 = 720.
Answer:
120
Step-by-step explanation:
Answer with Step-by-step explanation:
Let there be d dimes and q quarters
A woman has 21 total coins in her pocket.
⇒ d+q=21 ------(1)
1 dime=$ 0.1
1 quarter=$ 0.25
The total value of her change is $3.90
⇒ 0.1d+0.25q=3.90
Multiplying both sides by 100,we get
10d+25q=390 --------(2)
(2)-10×(1)
10d+25q-10d-10q=390-210
15q=180
Dividing both sides by 15, we get
q=12
Putting value of q in (1),we get
d=9
Hence, Number of dimes=9
and number of quarters=12
Write the number of dimes, then the number of quarters separated by a comma.
9,12
