Hugh bought some magazines that cost $ 3.95 each and some books that cost $ 8.95 each. i have spent a total of $ 47.65. if hugh bought 3 magazines, how many books did i buy? the equation that models the problem is 3.95m + 8.95b-47.65, where is the number of magazines and b is the number of books

$3.95(3) + $8.95(4) = $47.65

Step-by-step explanation:

Since we know that Hugh bought 3 magazines and each magazine costs $3.95 each, we can multiply $3.95 by 3 which will get us a total of $11.85.

Now, we subtract $11.85 from our overall total, $47.65, which gets us $35.80.

By dividing $8.95 from $35.80, we will find how much books Hugh bought. Hugh bought 4 books.

So, now we know that Hugh bought 3 magazines for $11.85 and 4 books for $35.80.

Now we plug it into our equation.

65

step-by-step explanation:

t = 3

step-by-step explanation:

put t = 3 in this expression :

(3²-1)(3²-2)(3² - 3)(3² - 4) = 8×7×6×5 = 56×30 = 1680