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Nezavi [6.7K]
3 years ago
9

Please help me it’s really important for me

Mathematics
1 answer:
Tanya [424]3 years ago
6 0

Answer:

1. B

2. A

3. B

4. ???

5. A

6 ???

7. I can't see it

Step-by-step explanation:

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The average of 10 numbers is -5. A new number is added to the list making the average -6. What is the new number?
Shtirlitz [24]

Answer:

- 16

Step-by-step explanation:

Average is calculated as

average = \frac{total}{count}

Thus for the given 10 numbers we have

\frac{total}{10} = - 5 ( multiply both sides by 10 )

total = - 50

let the number added be x, then

\frac{total+x}{11} = - 6 ( multiply both sides by 11 )

total + x = - 66, that is

- 50 + x = - 66 ( add 50 to both sides )

x = - 16

The new number is - 16

4 0
3 years ago
A worker can complete a piece of work in 30 days working 10
r-ruslan [8.4K]

Answer:

Step-by-step explanation:

The equation is 30x = 25 x 10

Therefore 30x = 250

250 divided by 30 is...

8.3333333333 etc.

6 0
3 years ago
Read 2 more answers
how many circles can be drawn passing through three non collinear points and how many circles can be drawn passing through three
MrRissso [65]

Answer:

Only one circle can be drawn through three non nonlinear points, No circle can be drawn through three nonlinear points

Step-by-step explanation:

A circle has a curve. As long as the three non nonlinear points both have the same amount of distance from the center of the circle it can be a circle drawn. No circle can be drawn through three points on the line.

7 0
2 years ago
I NEED HELP FAST
deff fn [24]

The restaurant served 70 specials in all, 80% of which were salmon filets. It says to find salmon filets that the restaurant served last night.

So we just need to find 80% of 70.

Therefore, Number of Salmon Filets = 0.8*70 = 56.

Hence, the restaurant served 56 salmon filets.

5 0
3 years ago
What is 7/3 % 3/5 thanks
Korolek [52]

What do you mean suhdbebejsjdudbdndndhdnnd

7 0
3 years ago
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