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2 years ago

What is the first step in solving the system shown below using substitution? 2x=y-1 y=3x

Mathematics

2 answers:

olga55 [171]2 years ago

7 0

Answer:

you have to solve the first equation for y

Step-by-step explanation:

Ronch [10]2 years ago

5 0

Step-by-step explanation:

At first put the value of y that is 3x in equation 2x=y-1.

Then put the value of x in equation y=3x that comes from the first solving part.

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An unconditional acceptance into a graduate program at a university will be given to students whose GMAT score plus 100 times th

Talja [164]

Answer:

Robbin's grade point average must be at least 2.75 in order to be unconditionally accepted into the program.

Step-by-step explanation:

An unconditional acceptance into a graduate program at a university will be given to students whose GMAT score plus 100 times the undergraduate grade point average is at least 1075

Considering the GMAT score x, and the GPA y, this situation is modeled by the following inequality:

$x + 100y \geq 1075$

Robbin's GMAT score was 800.

This means that $x = 800$ , and thus:

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$100y \geq 275$

$y \geq \frac{275}{100}$

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Robbin's grade point average must be at least 2.75 in order to be unconditionally accepted into the program.

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2 years ago

See attachment below

KatRina [158]

Answer: Third Option

$x=1.469743$

Step-by-step explanation:

We have the following exponential equation

$3^{x+1}=15$

We must solve the equation for the variable x

To clear the variable x apply the $log_3$ function on both sides of the equation

$log_3(3^{x+1})=log_3(15)$

Simplifying we get the following:

$x+1=log_3(15)$

To simplify the expression $log_3 (15)$ we apply the base change property

$log_b(y)=\frac{log(y)}{log(b)}$

This means that:

$log_3 (15)=\frac{log(15)}{log(3)}$

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$x+1=\frac{log(15)}{log(3)}$

$x=\frac{log(15)}{log(3)}-1$

$x=1.469743$

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Answer: 1

Step-by-step explanation:

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So, the average rate of change is:

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