Answer:
Fiona has 6 quarters
Step-by-step explanation:
If Fiona were to have 1 quarter and 1+6 dimes she would have 8 coins
If she were to have 2 quarters and 2+6 dimes she would have 10 coins
If she were to have 3 quarters and 3+6 dimes she would have 12 coins
If she were to have 4 quarters and 4+6 dimes she would have 14 coins
If she were to have 5 quarters and 5+6 dimes she would have 16 coins
If she were to have 6 quarters and 6+6 dimes she would have 18 coins
Therefore, she has to have 6 quarters in order to have 6 more dimes and a total of 18 coins
I hope this helps, and I'm sorry it took so long for me to write this out
Answer:
C. 12a+52 is the correct answer
Answer:
post the whole page please. I cant see it
Answer:
Step-by-step explanation:
a
Answer:
The second gear will complete 75 complete revolutions
Step-by-step explanation:
- There are two connected gears
- One has 60 teeth and the other has 40 teeth
- The two gears have different revolutions depends on the number of
their teethes
- They do the same job
- The relation between them is
, where n is the number of the complete
revolutions and c is the number of the teeth
- The gear which has less teethes makes more complete revolutions
∵
= 50
∵
= 60
∵
= 40
- Substitute these values in the rule below
∵
×
=
× 
∴ 50 × 60 =
× 40
∴ 3000 = 40 
- Divide both sides by 40
∴
= 75 complete revolutions
The second gear will complete 75 complete revolutions