Answer:
+10 and - 9
Step-by-step explanation:
If we consider the multiples of - 90
± 1, ± 2, ± 3, ± 5, ± 6, ± 9, ± 10, ± 15, ± 30, ± 90
The combination of multiples which multiply to - 90 and add to + 1 are
+ 10 and - 9
since 10 × - 9 = - 90 and 10 - 9 = 1
Bob needs to save at least 10 dollars to buy that book
he gets 2 dollars in allowance every day
he has 3 dollars now
in how many days will he be able to buy the book?
translation
if d=number of days
then
how much has now+how much will earn≥10
3+2d≥10
solve
minus 3 both sides
2d≥7
divide both sides by 2
d≥3.5
but wait, you can't have 3.5 days, round up becuase if round down you wil have less than $10
answer is 4 days
that is an example, just read it and don't just report it
Step-by-step explanation:
1 year = 12 months
2yrs = 24 months
F(c) =100+5(24)
= 100+120
= $220
Answer:
y ≤ 13.5
Step-by-step explanation:
total = $40
spent = $26.50
remaining = $13.50
<em>Gabe can spend the maximum amount of $13.50 </em>
Answer:
'number' = 10m
Step-by-step explanation:
