Answer:
4 weeks= $57
45+3(4)
45+12=57
10 weeks= $75
45+3(10)
45+30=75
15 weeks= $90
45+3(15)
45+45=90
20 weeks=$105
No there is not enough money because you are $20 short after 20 weeks. You need to wait 7 more weeks
Answer:
2.3 dollars
Step-by-step explanation:
Given:
Ratio table that shows the costs for different amounts of bird seed
To find: the unit rate in dollars per pound
Solution:
Amount (pounds) 5 10 15 20
Cost (dollars) 11.5 23 34.50 46
Here,
Therefore,
Cost of 10 pounds = 23 dollars
So, cost of 1 pound = dollars
<span><u>Answer </u>
Common difference = -4.5
<u>Explanation. </u>
An arithmetic sequence is a sequence in which the next term is found by adding a constant to the current term. This constant is called the common difference.
If a, b, c, d, e, ….is an arithmetic sequence, then the common difference will be,
Common difference = b-a=c-b=d-c=e-d…..
Now the question above common difference is;
Common difference = (-22.5)-(-14)=-4.5
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