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yulyashka [42]
3 years ago
11

Does anyone know this? There are 25 students names in a hat. You choose 5 names. Three are boys names and two are girls names. H

ow many of the 25 names would you expect to be boys names?
Mathematics
2 answers:
SVETLANKA909090 [29]3 years ago
7 0
The answer is probably 15 if you use ratios. So 3x5 equals 15


Nady [450]3 years ago
5 0

Answer:

I would expect there to be 15 boy names and 10 girl names.

Step-by-step explanation:

There is a 3 to 2 ratio between boy and girl names, and the only numbers that add up to 25 with that ratio are 15 and 10

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Vedmedyk [2.9K]

Answer:

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Step-by-step explanation:

That should help


4 0
3 years ago
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How do i factor the coefficent out of a variable, such as 2.4n+9.6 and -6z+12
ANEK [815]
You are factoring one or more linear expressions (but are not factoring variables).

2.4n+9.6 can be divided by 2.4 and then the result mult. by 2.4:

2.4n+9.6 = 2.4 [ n + 4 ]

Also:  -6z+12= 6 [ -z + 2 ]  Here I have simplified linear functions but factoring out common constant coefficients (not variables).
4 0
3 years ago
Solve the equation for y: 2 y – 25 = 19
stealth61 [152]

Answer:

2y - 25 = 19

2y = 19 + 25

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4 0
3 years ago
1. City A has a population of 25,000. The population Increases at 3.5% every year. Find the population size in 10 years.​
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6 0
3 years ago
Given the function: f(x) = 2x3 - 3/2x, find f(-4).
Sergeu [11.5K]

Answer:

D) -122

Step-by-step explanation:

Given:

f(x) = 2x^3-\frac{3}2x

We need to find f(-4).

Now by substituting the value of x =-4 in above equation we get;

f(-4)= 2\times(-4)^3-\frac{3}{2}\times(-4)\\

By using PEDMAS we will solve for exponential function first we get;

Now we know that (-4)^3=-64

So we get;

f(-4)= 2\times(-64)-\frac{3}{2}\times(-4)\\

Now using PEDMAS we will solve division.

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Now using PEDMAS we solve multiplication.

f(-4)= -128+6

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f(-4)= -122

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3 years ago
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