Answer:
B. 10 months
Step-by-step explanation:
The balance on the loan will be ...
b = 1600 - 80t . . . . . . where t is the number of months of payments
The balance in the savings account will be ...
s = 500 + 25t
The savings account balance will be at least as much as the loan balance when ...
s ≥ b
500 +25t ≥ 1600 -80t . . . substitute the account balance expressions
105t ≥ 1100 . . . . . . . . . . . . add 80t -500
t ≥ 1100/105 ≈ 10.48 ≈ 10
It will take Josh 10 months to have enough savings to pay the loan in full.
_____
<em>Comment on rounding</em>
IMO, it makes no sense to round down, as Josh will NOT have enough in 10 months. He will have enough after he makes one more payment of $80. At 10 months, the loan balance is $50 more than the savings balance. It will be 11 months before there is enough savings to pay off the loan.
Distribute, combine like terms, and boom! Hope this helped! (FOIL method)
Answer:
Step-by-step explanation:
Given that an ice cream shop has 25 different flavors of ice cream.
a) the number of different 3-scoop ice cream cones that are possible if all three scoops are different
=25P3 (since order matters as shapes or colours would be different so different order will give different type)
= 13800
b) the number of different 3-scoop ice cream cones that are possible if all three scoops are different
=25C3 (since order does not matter here)
=2300
c) the number of different ice cream cones if all three scoops could be the same, and the order of the
flavors is important
= when all three sceeps couldbe the same we can say that these are with replacement. Neither permutation nor combination
Each scoop can be any one of the 25
no of ways
Answer:
A.
Step-by-step explanation:
10^4 Basically means you move the number to the left 4 times.
Yes because a rational number is a number that can be written as a fraction. 5 divided by 4= 1.25, which is equal to 1 and one fourth. So yes, it is a rational number
