Answer:
3
Step-by-step explanation:
All factorials 5 and above are evenly divisible by 15, so have no remainder. Thus, you are interested in ...
mod(1! +2! +3! +4!, 15) = mod(1 +2 +6 +24, 15)
= mod(33, 15) = 3
The remainder is 3.
Answer:
y = 100 - 5x
Step-by-step explanation:
Total amount of gift card = $100
Amount spent per day = $5
Number of days = x days
Write an equation to show the amount left on the card after x days
y = 100 - 5x
Where,
y = amount left on the gift card
x = number of days
For example,
Assume x = 2 days
Amount left on the gift card, y
y = 100 - 5x
y = 100 - 5(2)
= 100 - 10
= 90
y =$90
2 1/4 (2.25) is your answer
Answer:
105:175
Step-by-step explanation:
3+5 = 8
3/8 of 280 is 105.
5/8 of 280 is 175.
the ratio is 105:175
next we have to simplify it:
divide both sides by 5:
21:35 divide both sides by 7=
3:5
Answer: 7.527 oz
Step-by-step explanation: 78%= 0.78
Mass of gold is 0.78 · 9.65 oz = 7.527 oz
