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Elina [12.6K]
3 years ago
15

Twice a number increased by 2 is zero

Mathematics
2 answers:
ikadub [295]3 years ago
8 0
Equation 2x + 2=0
Hope this helps you
Dmitry_Shevchenko [17]3 years ago
7 0
Alright, so 2x+2=0 (with x being the number) is what I'm getting from this. Subtract 2 from both sides to get 2x=-2, and then divide by 2 to get x=-1
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Joanne slices a large banana bread into 10 pieces. There are 2 adults and 2 children who get a piece of banana bread. The rest o
sergey [27]

Answer:

6/10 or 3/5(the simplified one)

Step-by-step explanation:

first we should look at how many people gets the bananna bread and how many they took in total.

The passage said there are 2 adults and 2 children, so there are 4 people.

Since each person gets 1 bread, we could know it is 4 * 1, which is 4 and that is the total of how many they took.

When we find out how many bread is took, we have to find how many bread remains.

10-4=6, so there are 6 breads left and that means 6/10 of the whole bread is donated.

we can  even simplify it. 6/10 could be simpligied to 3/5.

3 0
3 years ago
Suzanna walked two over seven of a mile in two over five of an hour. What is her unit rate in miles per hour? two sevenths over
Lorico [155]

Answer:

5/7 mile per hour.

Step-by-step explanation:

Divide 2/7 by 2/5 to get to 0.714. After that, convert the decimal to a fraction and you get your answer.



Hope this helped!!! <3 :)

5 0
4 years ago
1
KonstantinChe [14]
<h2>                     QUESTION # 1</h2>

Answer:

  • Total distance = 21 units (meters)
  • The average speed = 7 meter per second.

Step-by-step explanation:

To Determine:

If the whole run took the bug 3 seconds, what was its average speed?

Information Fetching and Solution Steps:

  • A beetle was running along a number line.
  • The beetle ran from 4 to 25.

Let suppose each unit on a number line represents 1 meter.

As the beetle ran from 4 to 25, so

the distance covered by beetle is:

                                           25 - 4 = 21 units. i.e. 21 meters

As the average speed can be determined by dividing the total distance by the total time, so

The average speed = total distance / total time

as

Total distance = 21 units (meters)

Total time = 3 seconds

so

The average speed = total distance / total time

                                 = 21/3

                                 = 7 meter per second

Therefore, the average speed = 7 meter per second.

                       

<h2>                       QUESTION # 2</h2>

Answer:

  • Total distance = 54 units (meters)
  • The average speed = 6 meter per second.

Step-by-step explanation:

To Determine:

If the whole run took the bug 9 seconds, what was its average speed?

Information Fetching and Solution Steps:

  • A beetle was running along a number line.
  • The beetle ran from 24 to 78.

Let suppose each unit on a number line represents 1 meter.

As the beetle ran from 24 to 78, so

the distance covered by beetle is:

                                         78 - 24 = 54 units. i.e. 54 meters

As the average speed can be determined by dividing the total distance by the total time, so

The average speed = total distance / total time

as

Total distance = 54 units (meters)

Total time = 9 seconds

so

The average speed = total distance / total time

                                 = 54/9

                                 = 6 meter per second

Therefore, the average speed = 6 meter per second.

6 0
4 years ago
Select the two expressions that equivalent to 4 + w + 12w
Korvikt [17]

Answer:

A and C :)

Have an amazing day!!

Please rate and mark brainliest!!

4 0
2 years ago
I have two bags of counters.
STatiana [176]

Answer:

a. 4/21

b. 4/7

Step-by-step explanation:

Please kindly check the attached files for explanation.

8 0
3 years ago
Read 2 more answers
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