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IRINA_888 [86]
3 years ago
11

Help me on this math question please

Mathematics
1 answer:
Debora [2.8K]3 years ago
3 0

Answer:

its answer is 20

Step-by-step explanation:

as we know,

a=5

b=4

c=7

now,

3(b+a)-c

= 3(4+5)-7(here,putting the value of a,b&c)

=3×9-7

=27-7

=20.

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Read 2 more answers
I need help with number 10
lukranit [14]
A)
Knights:
25n-C+1250=0
25n+1250=C
C=25n+1250

Legions:
30n+995-C=0
30n+995=C
C=30n+995

b)
fixed cost=b in y-intercept form
variable cost, dependent on n=m in y-intercept form
Knights:
fixed=1250
variable=25

Legions:
fixed=995
variable=30

c)
insert 45 into n for both formulas:

Knights:
25*45+1250=1125+1250=2375

Legions:
30*45+995=1350+995=2345

d)With 45 guests the Legion's Banquett Hall is cheaper, but due to the higher variable cost this changes with a few more people.
calculate break even point:
difference in variable cost=5 -> per person the cost difference will decrease by this much if another person joins
current price difference: 2375-2345=30
30/5=6 -> if there are 6 additional guest (total= 51) they will cost the same
if there are more than 6 additional guest (total >51) the knight's banquett will be cheaper.


6 0
2 years ago
Please help sorry if it’s blurry
Sveta_85 [38]

Answer:

a

Step-by-step explanation:

8 0
3 years ago
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