Sam has saved 200 sand dollars and wants to give them away equally to n friends. Write an expression to show how many sand dolla
2 answers:
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Given:
Total number of coins (Quarters and dimes) = 60
Total amount = $12.45
To find:
The number of quarters and dimes.
Solution:
Let x be the number of quarters and y be the number of dimes.
We know that,
1 quarter = 0.25 dollar
1 dime = 0.10 dollar
Total coins: ...(i)
Total amount: ...(ii)
From (i), we get
...(iii)
Putting this value in (ii), we get
Divide both sides by 0.15.
Putting x=43 in (iii), we get
So, the number of quarters is 43 and the number of dimes is 17.
Therefore, the correct option is b.
Answer:
Table 3
Step-by-step explanation:
Data shows no correlation when it has no trend in relation to the x-values. The data of table 3 both increases and decreases as x gets larger, so shows less correlation than the other tables.
This is verified by the computation done using a spreadsheet.
Table 3 shows no correlation
