Homework: HW 5.7
ements
Score: 0 of 1 pt
nts
5.7.15
ns
Find (a) v xw, (b) wxv, (c) vxv, and (d) www.
v=2i – j + 2k, w=i - 23 - 2k
(a) vxw=
(Type your answer in the form ai + bj + ck.)
llery
What is the cross product ?

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

the answer is 150.6

step-by-step explanation:

you multiply .02 by 30 and get .6.

and then you multiply 5.00 by 30 and get 150.

hope this !

15 / 2 = 7.5

100 / 7.5 = 13.