Let g be the number of grandchildren, and d be the number of dogs. They both have only one head, so the number of heads is
Grandchildren have 2 legs, while dogs have 4. So, the total number of legs is
From the first equation (the one for the heads) we can derive
Substitute this into the second to get
So, there are 9 dogs and (from the first equation
Refer to the attached file
For your understanding,I am sending this too so that u can understand the concept
The expression representing the amount of money that was raised for each member of the club is (in dollars)
When 'a' is divided by 'b', then the result we get from the division is the part of 'a' that each one of 'b' items will get.
Thus, if 10 mangoes are there, and 2 people, then 10 ÷ 2 is the number of mangoes each person would get, which is 5.
Division, thus, can be interpreted as equally dividing the number that is being divided in total x parts, where x is the number of parts the given number is divided.
Thus, divided in b equal parts.
Also, we can write:
(it is since so
)
Profit earned is the extra money which we make after deducing the cost price of the process we're doing.
So, we get:
Profit earned = Total amount earned - Amount spent initially for preparation to earn
P = Selling price (S.P.) = Cost price (C.P.)
For the given case, we're given that:
The money raised = Amount made by selling popcorn - amount costed to the club for getting popcorn
Money raised = $627.50 - $95.0
If it is given that: m = number of members in the considered club, then:
Money each member of the considered club will get = Money raised divided in equal m parts = (in dollars)
(we don't write symbols like of currency generally, and understand it from context.)
Thus, the expression representing the amount of money that was raised for each member of the club is (in dollars)
Learn more about division here: