Answer:
(-2, -4.5)
Step-by-step explanation:
We can solve this equation with substitution.
x=2y+7
3x-2y=3
We can "substitute" 2y+7 for x into the second equation:
3(2y+7)-2y=3
Distribute the 3
6y+21-2y=3
Add like terms
4y+21=3
Subtract 21 from both sides
4y=-18
Divide both sides by 4 to isolate y
y=-4.5
Plug -4.5 back in for y:
x=2(-4.5)+7
x=-9+7
x=-2
(x,y)=(-2,-4.5)
Answer: 36 whole sausages by the end of the contest.
Step-by-step explanation:
We know that he ate 27 sausages in 11 minutes, then the rate at which he ates sausages is:
R = (27 sausages)/(11 minutes) = 2.45 sausage/min
So if he ate at this rate for 15 minutes, the total number of sausages eaten by the end is:
Total number = (2.45 sausage/min)*15min = 36.8 sausages
(where we are counting again the 27 sausages that he ate in the first 11 mins)
If we only count the number of whole sausages eaten, he ate 36 whole sausages.
Answer:
2.5 kg per person
Step-by-step explanation:
Take the amount of chocolate and divide by the number of people
5 kg /2
2.5 kg per person
There are many impossible events. Here are a few.
I'm sure you can think of at least 15 more:
-- Pull 5 multiples of 3 from the bag.
-- Pull 3 multiples of 5 from the bag.
-- Pull 7 odd numbers from the bag.
-- Pull 7 even numbers from the bag.
-- Pull two slips from the bag whose sum is more than 21 .
-- Pull three slips from the bag whose sum is more than 33 .
-- Pull two slips from the bag whose sum is less than 3 .
-- Pull three slips from the bag whose sum is less than 6 .
-- Pull two slips from the bag whose product is more than 132 .
-- Pull two slips from the bag whose product is less than 2 .
etc.
