Hello :
the nth term ( general term of an arithmetic sequence is :
An =A1+(n-1)d ....a common difference is : d , A1 : the first terme
A1 = 5 and : d = 1 - 5 = - 4 n = 21
A21 = 5 + (21 -1)(-4)
A21 = 5 - 80 = -75
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She already paid $5, and then she bowled 4 games so 4x represents the four games she bowled and how much she payed for them. The total cost was 18.
5 + 4x = 18
Subtract 5 from both sides:
4x = 13
Divide both sides by 4
x = 3.25
So she paid $3.25 per game
Answer:
The cost of buying 6 sodas at 79¢ each is greater than the cost of buying 5 sodas and getting 1 free
Step-by-step explanation:
Ella gets a free soda after buying 5 sodas at the regular price of 89¢
Total cost of 6 sodas( 5 + 1 free)
= 89¢ × 5
= 445¢
Same-sized sodas at the local fast food restaurant are 79¢ each.
Total cost of 6 sodas = 79¢ × 6
= 474¢
The cost of buying 6 sodas at 79¢ each is greater than the cost of buying 5 sodas and getting 1 free
Least to greatest: 0.4, 1/2, 60%
greatest to least: 60%, 1/2, 0.4
hope this helps :)