D = {x|x is a whole number}
E = {4}
F = {2, 4, 6, 8}
D ∩ F = {2, 4, 6, 8}
A.
100%=all
so if 25% is dark and the rest is milk then
dark+milk=all
25%+milk=100%
minus 25% both sides
milk=75%
so
if milk chocolate=3lb then
3lb=75%
divide by 3
1lb=25%=dark chocolate
oops, I didn't use an equation
hmm
ratios and things
75%=milk
25%=dark
so we got
for m=pounds of milk chocolate
and d=dark chocolate
m/d=72/25 or m/d=3 and
m=3
duh
3/d=3
3=3d
1=d
B. 1 lb dark chocolate
Answer:
C.
Step-by-step explanation:
It is correct because the line on the graph goes up (increases) then it goes back down (decreases)
Step-by-step explanation:
1.
91 + (10x - 4) + (8x + 3) = 180
91 - 4 + 3 + 10x + 8x = 180
90 + 18x = 180
18x = 180 - 90
18x = 90
x = 90/18 = 5
x is 5
