Answer:
See the three attached images.
Step-by-step explanation:
image1 shows the intersection of b and c:
. (green "football")
image2 shows the <u>complement</u> of a (outside a):
(yellow)
image3 shows the intersection of those sets:
(green "football with a bite out of it") :-)
Answer:
9
Step-by-step explanation:
(a) 3x=4(x-2.25) (or simplified: 3x=4x-9)
(b) 3x=4x-9
0=x-9
x=$9
(c) 3x9=27
4x9=36
36-9=27
and 27=27 therefore they spent the same and it is correct
(d) Tanya's items cost $9 each and Tony's items cost $2.25 less than this, or $6.75
4y+25=3y+20
4y+5=3y
***y=5***
so you plug y into both
4(5)+25 and 3(5)+20
45, 100, and 35 are the measurements of the angles.