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stiv31 [10]
3 years ago
12

20% tip on a bill of 42.26

Mathematics
2 answers:
dybincka [34]3 years ago
5 0

Answer:

(42.26/100)*120 = $50.712

Step-by-step explanation:

borishaifa [10]3 years ago
3 0

Answer: tip = 8.452

Step-by-step explanation:

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A fast-food restaurant offers 6 different burgers, 5 different side orders, 8 different flavor drinks, and 8 different flavors o
tresset_1 [31]

Answer:

235,200 ways

Step-by-step explanation:

A fast-food restaurant offers 6 different burgers

5 different side orders

8 different flavor drinks

8 different flavors of ice cream.

use combination to find the ways nCr

nCr= \frac{n!}{r!(n-r)!}

2 burgers can be selected from 6 different burgers in 6C2 ways

6C2= \frac{6!}{2!(6-2)!}=15

2 different sides can be selected from 5 different side orders in 5C2 ways

5C2= \frac{5!}{2!(5-2)!}=10

3 different flavor drinks can be selected from 8 different flavor drinks in 8C3ways

8C3= \frac{8!}{3!(8-3)!}=56

2 ice cream flavors can be selected from 8 ice cream flavors in 8C2 ways

8C2= \frac{8!}{2!(8-2)!}=28

Total ways = 15 \cdot 10 \cdot 56 \cdot 28=235200

8 0
3 years ago
Marta's jump rope is 10" shorter than three times the length of Dilbert's rope. If both their ropes laid together end to end and
-Dominant- [34]
3d-10+d=120              32.5(3)-10
3d+d-10=120               97.5-10            
4d-10=120                    87.5
   +10  +10
-------------------             Martha's rope is 87.5" long
4d=130
----  ----
  4    4

d=32.5


4 0
4 years ago
Suppose the population of a town is 15,200 and is growing 2% each year. Write an equation to model the population growth. Predic
larisa [96]
For this case, what you need to know is that to model this problem, you must use equations of the potential type:
 y = A * (b) ^ t
 Where:
 A: initial population.
 b: growth rate.
 t: time.
 Substituting values we have:
 y = 15200 * (1.02) ^ t
 After 10 years we have:
 y = 15200 * (1.02) ^ 10
 y = 18529
 Answer:
 An equation to model of the population growth is:
 y = 15,200 ∙ 1.02 ^ x
 the population after 10 years is:
 about 18,529
5 0
3 years ago
A group of 50 New York psychology students got a mean score of 530 on the psychology GRE with a standard deviation of 80. These
lesantik [10]

Answer: No, New York students are not truly more nerdy than the California students.

Step-by-step explanation:

Since we have given that

Number of students in a group = 50

Mean score of New York psychology = 530

Mean score of California psychology = 515

Standard deviation = 80

So, we will find t-distribution first.

t=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}\\\\t=\dfrac{530-515}{\dfrac{80}{\sqrt{50}}}\\\\t=1.32

Let α = 5% = 0.05

So, t_{\alpha,2}=2.920

Since t < t(critical value)

No, New York students are not truly more nerdy than the California students.

3 0
4 years ago
Hanna's favorite character is sold wearing one of many outfits
Neporo4naja [7]
One of many outfits mean twice as much
7 0
3 years ago
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