Answer:
amount of peanut butter cookies =X
Price of ^ = w
amount of chocolate chip cookies = y
Price of ^ = q
Total cost = T
Step-by-step explanation:
(XW) + (YQ) = T
example 1 of each cookie and they each cost 2 dollars so we should get 4
(1*2) + (1*2) = 4
Answer:
[ 1 0]
[ 0 1]
Step-by-step explanation:
to obtain a matrix product of B * A we have to multiply the first element of the first row of B by the first element of the first column of A and to this add the second element of the first row of B by the second element of the first row of A, so we will get the first term of the resulting matrix
For each term of the resulting matrix, follow this form
[(B11*A11)+(B12*A21) (B11*A12)+(B12*A22)]
[(B21*A11)+(B22*A21) (B21*A12)+(B22*A22)]
[1/4 1/2] * [2 2]
[1/4 -1/2] [1 -1]
[ (1/4)(2)+(1/2)(1) (1/4)(2)+(1/2)(-1) ]
[ (1/4)(2)+(-1/2)(1) (1/4)(2)+(-1/2)(-1) ]
[ 1/2+1/2 1/2-1/2]
[ 1/2-1/2 1/2+1/2]
[ 1 0]
[ 0 1]
Answer:
26% increase
Step-by-step explanation:
Initial temperature= t
5% increase= t+ 5%= 1.05t
20% increase= 1.05t +20%= 1.05t*1.2= 1.26t
1.26 t= t + 26%
So temperature increased by 26%