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3 years ago

5

Solve using substitution. 3x + 8y = 19 y = 2 ( , )

2 answers:

Kobotan [32]3 years ago

8 0

X=1, (1,2) is the answer

satela [25.4K]3 years ago

4 0

3x + 8(2) = 19, 3x + 16= 19 , 3x=3 , x =1

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Two trains, Train A and Train B, weigh a total of 493 tons. Train A is heavier than Train B. The difference of their weights is

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3 years ago

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4 years ago

Find the variance of this probability distribution. Round to two decimal places.

attashe74 [19]

Answer:

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Step-by-step explanation:

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$\sigma^{2} =\frac{\Sigma(X- \mu)^{2}}{N} \\or \\ \sigma^{2} =\frac{\Sigma(X)^{2}}{N} -\mu^{2} \\$

Where:

$X: Values \\\mu: Mean \\N: Number\ of\ values$

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4 0

4 years ago

Carmen simplifies the expression (4 y 8 x 6) 25 (4 x 6 y 7). The coefficient of the variable y in her simplified answer is 4. 6.

Sever21 [200]

Carmen simplifies the expression and gets the coefficient of y is 10. Thus, the correct option is C.

<h3>What is simplification?</h3>

Simplification is to make something easier to do or understand and to make something less complicated.

Given

Carmen simplifies the expression $\rm (4 y + 8 x + 6) + 25 + (4 x +6 y +7)$ .

We can add x term with x, y term with y, and constant with constant.

On simplifying, we have

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Thus, the coefficeint of y is 10.

More about the simplification link is given below.

brainly.com/question/12616840

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2 years ago

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andre [41]

Answer:

9 days

Step-by-step explanation:

1= 9*(1.04)^d

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d= 0.1532/0.017

d=9

The reasonable domain to plot the growth function is in the interval [0,9].

6 0

2 years ago