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irina1246 [14]
4 years ago
8

¿Cuanto es 3x+2x? Con desarrollo porfavor

Mathematics
1 answer:
IceJOKER [234]4 years ago
4 0

3x+2x= 5x

Sorry, I cant understand what the second line means, hopefully this helped:)

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The length of a model car is 1/20 of the length of the actual car. If the model is 8.7 in. long, how long is the actual car
USPshnik [31]

I think could be a about 23.4 but I'm not sure
5 0
3 years ago
Read 2 more answers
Choose the statement that describes a way to solve the equation x + 2.5 = 8
scoray [572]

Answer:

subtract 2.5 on both sides

5 0
3 years ago
Solving equations 10z+3z+5=2(z-3)
Nesterboy [21]

Answer: Use the PEMDAS rule

Step-by-step explanation: 0z+3z+5=2(z-3)=

z= -1

you need to do the z numbers all together and the normal numbers together then subtract them to get -1

I hope that I help you

5 0
3 years ago
El MCM de dos números es 200 y su MCD es 4. Si uno de ellos es 8, ¿cuál es el otro número?
avanturin [10]

Answer: The other number is 100.

Step-by-step explanation:

The least common multiple (LCM) of two numbers is 200

The greatest common denominator (GCD) is 4.

One of the numbers is 8, which is the other number?

Ok:

First, we can write 8 as: 2*2*2 = 2^3 = 2*4

Now, the minimal common denominator can be any number that is written in the form

x = 4*a*b..

where a, b etc are prime numbers.

We also know that

LCD(a,b) = a*b/GCD(a,b)

LCD(8,x) = 8*x/GCD(8, x)

200 = 8*x/4

x = 200*4/8 = 100

the other number is 100.

4 0
4 years ago
In a study of simulated juror decision making, Braden-Maguire, Sigal, and Perrino (2005) investigated the type of verdict assign
Licemer1 [7]

Answer:

Independence chi-square test

Step-by-step explanation:

The Chi-Square Test for independence is a type of statistical hypothesis test that is used to determine the existence of an association or relationship between nominal or categorical variables

The chi-square is given by the following formula;

\chi^2 = \XXL\sum \dfrac{\left (O_i - E_i  \right)^2}{E_i}

The number of participants = 80

The number that assigned a verdict of guilty = 27

The number that assigned a verdict of not guilty by reason of self defense = 49

The number that assigned a verdict of not guilty by reason of insanity = 4

Independence Chi Square test

The table of values is presented as follows;

Expected Value = (Row sum * Column Sum)/(Grand Total)

Expected Value for Guilty = 27 × 80/80 = 27

Expected Value for Self Defense = 49 × 80/80 = 49

Expected value for Insanity = 4 × 80/80 = 4

\begin{array}{ccc}Category&Observed&Expected\\Guilty&27&27\\SelfDe&49&49\\Insanity&4&4\end{array}

6 0
3 years ago
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