Answer:
5 + 1.5x = total cost
Step-by-step explanation:
5 is for one pizza and x is for toppings. For every topping it is multiplied by 1.5. for example, if you have 2 toppings for one cheese pizza it would be 5 dollars + 1.5x2 which is 3 so 3+5=8$ in total.
T = Total income
N = Number of purses
35N = the selling price of each purse
17N = Cost of each purse
T = 35*N - 17*N - 75
T = 18N - 75
If she wants here total income to be 350 dollars, it will take
T = 350 ; N = unknown.
350 = 18N - 75 Add 75 to both sides.
350 + 75 = 18N
425 = 18N
Rounded N = 24 <<<< Answer. The actually number is 23.611 but you can't sell 0.611 of a purse.
Yes. If you're given a lower triangle matrix A, then A = LU if L = A and U = I (the identity matrix). If your matrix is upper triangular, then A = LU with L = I and U = A.
5x+2y=7
7x-2y=5 its subtract not add
