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Ksenya-84 [330]
2 years ago
15

Which of these numbers is prime? Choose 1 answer: 3 30 63 77 E 91​

Mathematics
2 answers:
Sav [38]2 years ago
3 0

Answer:

3

Step-by-step explanation:

3 is the only number here with factors of itself (3) and 1

madam [21]2 years ago
3 0

Answer:

3

Step-by-step explanation:

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Thirty elves would like to build a skating ring so they can all use it at the same time. Santa tells them, they need at least 40
Delicious77 [7]

Answer:

The Possible dimension of the ring could be;

20 ft × 60 ft

25 ft × 48 ft

30 ft × 40 ft

60 ft × 20 ft

48 ft × 25 ft

40 ft × 30 ft

Step-by-step explanation:

Given:

Number of skaters = 30

Area for each skater = 40 sq ft

We need to find the dimension of rectangular ring the are going to build.

Now we know that they building the skating ring such that they all can use at same time.

Hence if the all use at same time then we will find the total area first.

Total area can be calculated by multiplying Number of skaters with area required for each skaters.

Framing the equation we get;

Total area = 30\times 40 = 1200 \ ft^2

Hence The total area of the rectangular ring would be 1200 sq. ft.

Now we know that Total area is equal to product of length and width.

length\times width =1200ft^2

1200 can be written as = 20 × 60, 25 × 48, 30 × 40,60 × 20,48 × 25,40 × 30

Hence the Possible dimension of the ring could be;

20 ft × 60 ft

25 ft × 48 ft

30 ft × 40 ft

60 ft × 20 ft

48 ft × 25 ft

40 ft × 30 ft

3 0
2 years ago
Hellpppppppppppppppppppppp
xxTIMURxx [149]

Answer:

1. MIGHT be 16 1/2

Step-by-step explanation:

causse 2/3 / 4/9 = 1 1/2

1 1/2 + 10= 11 +5 = 16

16+1/2 = 16 1/2

4 0
2 years ago
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Please help! Write the slope-intercept form equation of the trend line
Eduardwww [97]

Answer:

y= -1/3x+9.2

Step-by-step explanation:

I believe that it is 9.2 although it could be another number in the 9's.

The slope is (rise) -1 and (run) 3 and the line crosses the y-intercept at what it looks like 9.2

6 0
3 years ago
Harry has decided to give his collection of 24 old coins to his four grandsons. John, the oldest, gets half the collection. Walt
Aleksandr [31]
John gets 12, Walt, Matt, and Richie get 4 each
5 0
3 years ago
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What else would need to be congruent to show that ABC= DEF by ASA?
babunello [35]

Answer:

Option A

then you would have an angle, a side and another angle (ASA) next to each other

Opt.B would be a second sude (SAS)

Opt.C is already given

Opt.D seems to be like (A-S-S). no pun intended.

5 0
3 years ago
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