7h+3s=27.95 subtract 7h from both sides
3s=27.95-7h divide both sides by 3
s=(27.95-7h)/3
Then we are told:
5h+4s=23.4, using s found above makes this equation become:
5h+4(27.95-7h)/3=23.4 multiply both sides by 3
15h+4(27.95-7h=70.2 perform indicated multiplication on left side
15h+111.8-28h=70.2 combine like terms on left side
-13h+111.8=70.2 subtract 111.8 from both sides
-13h=-41.6 divide both sides by -13
h=$3.20
Answer:

Step-by-step explanation:
Please see the attached pictures for the full solution.
Answer:
155 pages
Step-by-step explanation:
55*2+30+15=155
Hope this helps :)
Answer:
the probability that the ext order will be shrimp = 27.78%
Step-by-step explanation:
Vegetable 333
Chicken 666
Pork 222
Beef 222
Shrimp 555
total = 1,998
P (shrimp) = 555 / 1,998 = 0.2777 or 27.78%
in case the numbers in the orders were:
Vegetable 3
Chicken 6
Pork 2
Beef 2
Shrimp 5
total = 18
P (shrimp) = 5 / 18 = 0.2777 or 27.78%
The probability of an event happening is just the number of times that event occurred divided by the total number of events that took place.