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Maru [420]
3 years ago
8

Find the value of k: 7k÷3=21

Mathematics
2 answers:
lilavasa [31]3 years ago
6 0
Hope this helps. All you want to do is multi or divide to isolate k.

Free_Kalibri [48]3 years ago
3 0
The answer is 9. 7 times 9 is 63 and then 63 divided by 3 is 9.
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Ms. Johnston's students counted by fives. The first person said, "Five." The next said, "Ten"; the next "15." They went all the
Tcecarenko [31]

Answer:

20 students.

Step-by-step explanation:

The <u>first </u>person said 5 (which is 5 x 1), the <u>second </u>person said 10 ( which is 5 x2)... we see that this is a arithmetic sequence where the first term is 5 and the nth term is 100. We know that 100 = 5 x 20, therefore, the number of students that counted all the way up to 100 was 20 and Bobby was wrong.

3 0
3 years ago
7v + 6v pls help im learn about algebra
kati45 [8]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Four numbers from the set 0 to 9, including 0 and 9, are used to create a personal identification number. Once a number is used,
dolphi86 [110]

Answer:

1. 5,040

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Step-by-step explanation:

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3 years ago
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damaskus [11]

Answer:

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Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
In a trolley ride around an amusement park, a child traveled from one signpost to a second signpost at a constant speed of 125 m
Inessa05 [86]

Answer:

Given speed of trolley = 125 meters per minute

Speed= 125 meters/minute\\\\Speed =\frac{125}{60}meters/second\\\\Speed=2.083m/s

Now we know that

Distance= Speed x time

Thus for the first case since the time of travel is less than 450 seconds thus the distance traveled is less than

Distance < 2.083 x 450 =937.5 meters

hence depending on the given information we cannot come to any conclusion weather the distance travelled is less than 800 m or greater than 800 m.

For the second case

since the time of travel is greater than 400 seconds

Thus the distance traveled is

Distance>2.083\times 400=833.2meters

which is greater than 800 meters.

4 0
3 years ago
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