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2 years ago

The average of 20 numbers is 0. among them at least how many of them can be greater than 0.

Mathematics

1 answer:

Neporo4naja [7]2 years ago

8 0

Answer:

The correct option is A.

Step-by-step explanation:

The correct option is A.

According to the given statement:

Average of 20 numbers= 0.

So we have avg = sum/20.

That implies sum = 0.

Hence at the most, there can be 19 positive numbers.

(Such that if the sum of these 19 positive numbers is x, 20th number will be -x)....

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Simplify this expression.<br><br> 20.25−912+11

DIA [1.3K]

Answer:

-880.75

Step-by-step explanation:

Subtract 912 from 20.25 first then add 11.

7 0

3 years ago

Read 2 more answers

2<br> 2. Evaluate (a + y)+ 2y if a = 5 and y = -3.<br> F 58<br> G -2<br> H 70<br> J 10

NARA [144]

<h3>Answer: G) -2</h3>

=======================================================

Explanation:

I'm assuming you meant to say (a+y)^2 + 2y

Replace each copy of 'a' with 5. Replace each copy of 'y' with -3. Use PEMDAS to simplify.

(a+y)^2 + 2y

(5 + (-3))^2 + 2(-3)

(5-3)^2 + 2(-3)

(2)^2 + 2(-3)

4 + 2(-3)

4 - 6

-2

So (a+y)^2 + 2y = -2 when a = 5 and y = -3.

3 0

2 years ago

A small bar of gold measure 40 mm by 25 mm. by 2 mm. Find the volume in cubic millimeters.

vladimir2022 [97]

Answer:

2000 mm^3* .0005oz/1mm^3=1oz

Step-by-step explanation:

v=40mm*25mm*2mm=2000mm^3

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2 years ago

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Which graph shows the solution to x-2y_>9

STatiana [176]

Answer:

Step-by-step explanation:

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3 years ago

Mr.Ramirez had $600. He saved 3/5 and spent 3/8 of the remainder

Alex73 [517]

Answer:

$450

Step-by-step explanation:

Given function:

$600,3/5,3/8

To solve:

$600-3/5-3/8+3/5

Subtract the two terms:

$600=\frac{30}{5}$
$600$ · $\frac{3}{5}=360$

Subtract the first value by 360:

$600-360=240$

Find 3/8 of 240 and then subtract it:

$240$ · $\frac{3}{8}=90$

Combine the terms:

$360+90=450$

Therefore, Mr.Raminrez now have a total of $450..

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2 years ago