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ludmilkaskok [199]
2 years ago
12

a person on a moving sidewalk travels 21 feet in 7 seconds .the moving sidewalk has a length of 180 feet. how long will it take

to move from one end of the sidewalk to the other
Mathematics
1 answer:
mario62 [17]2 years ago
8 0
The answer is 59.99 because if you divide 180 by 21 you will get 8.57..... Then you need to multiply 8.57..... by 7 to get 59.99
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HOW DO THE EXPRESSION 4(3+X) AND (3+3+3+3)+(X+X+X+X) COMPARE TO ANOTHER
UkoKoshka [18]
They are equal to one another because 4(3+x) can be rewritten using the distributive property as 4(3)+4x or 3+3+3+3+x+x+x+x
8 0
3 years ago
I need help on Part B and C on question 2
kap26 [50]

Answer:

The answer to your question is

Part A. Archimedes grades 6 1/4 tests per day

Part B. 8 19/32 days

Part C.  6  26/29 days

Step-by-step explanation:

Part A

Total time = 6 2/5 days

Number of tests = 40 tests

Process

1.- Convert the mixed fraction to improper fraction

                 6 2/5 = (30 + 2) / 5 = 32/5

2.- Divide 40 by 32/5

                40/1  / 32/5   = (40 x 5) / (32 x 1)

                                      = 200 / 32

Simplify

                                        100 / 16 = 50/8 = 25/4

3.- Convert 25/4 to mixed fractions

                                       6      

                                4   25            

                                        1

                   25/4 = 6 1/4

Archimedes grade 6 1/4 tests per day

Part B

15 more tests

Total time = 32/5

Total tests = 40 + 15 = 55

Process

1.- Divide 55 by 32/5

                                  55 / 1  /  32 /5    = (55 x 5) / (32 x 1)

                                                             = 275 / 32

                                                             

2.- Convert 275/32 to a mixed fraction

                                                 8                                  

                                      32   275

                                             256

                                                19

Result    8 19/32 days

Part C

1.- Divide 55 by 7.25

                                         50 / 7.25     =    5000 / 725

                                                  6

                                725    5000

                                        - 4350

                                            650    

Result 6 650/750 = 6  26/29

3 0
3 years ago
20 POINTSSS AND I WILL GIVE BRAINLIEST !!
inessss [21]
I think it’s Step 2 your welcome
7 0
2 years ago
I dont understand<br> help please!!!
shutvik [7]
Answer: I

Why?
(A-p)/p= I
6 0
2 years ago
Which of the following is the Pythagorean theorem
noname [10]

Answer:

a^2+b^2=c^2

Step-by-step explanation:

The Pythagorean Theorem is used to find a missing side length in a right triangle, and the formula a^2+b^2=c^2 is used to find the missing side, assuming a and b are legs, while c is the hypotenuse.

4 0
3 years ago
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