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Kipish [7]
2 years ago
5

16. Evaluate 3•7 - 1. O -5 O 21 20 18

Mathematics
1 answer:
Greeley [361]2 years ago
7 0

Step-by-step explanation:

3.7-1

point in mathematics mean multiplication

so

3*7-1

21-1

20

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Hugh bought some magazines that cost $3.95 each and some books that cost $8.95 each. He spent a total of $47.65. Let m represent
finlep [7]

Answer:

3.95(3) + 8.95b = 47.65

11.85 + 8.95b = 47.65

Subtract 11.85 from both sides.

8.95b = 35.8

Divide 8.95 from both sides.

b = 4

Hugh bough 4 books.

Step-by-step explanation:

3.95(3) + 8.95b = 47.65

11.85 + 8.95b = 47.65

Subtract 11.85 from both sides.

8.95b = 35.8

Divide 8.95 from both sides.

b = 4

Hugh bough 4 books.

3 0
3 years ago
Describe the image of D first reflected across line l, then across line m.
Basile [38]
Answser: the image of D will be the same drawing (D), translated to the right of the line m.

Explanation:

1) The first reflection, accross the line l, will be the letter<span> D turned (with the "belly" to the left instead of the right), located to the right of the line l and to the left of the line m.

2) The second reflection, accross the line m, will turn the letter again leting it equal to the original picture, now translated to the right on the line m.


</span>
5 0
3 years ago
The box plots show the average wind speeds, in miles per hour, for two different islands.
lutik1710 [3]

*see attachement.

Answer:

Country A because it has a smaller interquartile range

Step-by-step explanation:

A smaller interquartile range connotes that the data in the distribution do not vary much, while a larger interquartile range would suggest the data vary much.

Therefore, the island that would have an average speed close to its median would be the island whose interquartile range is smaller.

Thus, Country A has a smaller interquartile range, so therefore, it would have a daily wind speed close to its median.

6 0
3 years ago
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A Ferris wheel has a diameter of 140 ft. There are 40 cars for riders, and they are placed at even intervals around the Ferris w
max2010maxim [7]
The circumference of a Ferris wheel:
C = 2 r π
C = 2 · 70 · 3.14
C = 439.6 ft
439.6 : 40 = 10.99 ≈ 11 ft
Answer:
The cars are placed approximately 11 ft apart.
6 0
3 years ago
Read 2 more answers
3x2 + 7x+3<br> 5x2 + 12x
MaRussiya [10]

Final result :

 19x2 + 119x - 28

 ————————————————

        7        

6 0
3 years ago
Read 2 more answers
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