Answer:
(5*4)*3 or 3(5*4)
Step-by-step explanation:
There are 20 books in each box.
If each box has 20 books, then the number of books is 20 times the number of boxes. (20 books: 1 box, 40 books: 2 boxes...)
So, using mathematical terms, the number of books is equal to the number of boxes x 20.
Here, it says James packs x boxes of books. This means that we call the number of boxes, x. X could be 1,2,3, or any other number.
So, since there are 20 times as many books as boxes, the number of books is 20 times x.
In math terms, this is written like 20x.
So the answer is 20x.
Answer:
Number of coins that are not nickels = 55 coins
66 = 55 + n
number of nickels in the jar = 11
Step-by-step explanation:
Pennies = 17
Dimes = 12
Quarters = 26
Nickels = n
Total coins = 66
How many of the coins are not nickels?
= Pennies + Dimes + Quarters
= 17 + 12 + 26
= 55 coins
Number of coins that are not nickels = 55 coins
what equation could you use to find n?
Total coins = Pennies + Dimes + Quarters + nickels
66 = 17 + 12 + 26 + n
66 = 55 + n
n = 66 - 55
n = 11
number of nickels in the jar = 11
Si bi almota con te illama
To be able to get the negative number you have to divide x by a negative number to get your result. Seeing the solution is a negative number but your left side of the equation is a positive number tells us we have to divide by a negative number on the left side and right to give us the solution... (I think)
