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2 years ago

Confused plz help! will mark!!

Mathematics

2 answers:

Doss [256]2 years ago

6 0

The answer is a
3x-1x-1=3
2x-1x-1=2
=-1
=1
3+2-1+1=5

PIT_PIT [208]2 years ago

5 0

We substitute the value of x (-1) in each place there is an x and solve...

3(-1)^3 + 2(-1)^2 + (-1) + 1

it equals...-1

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√52-√13+√117

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2 years ago

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3 years ago

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kobusy [5.1K]

Answer:

The correct answer is: $y=\frac{1}{3} x + 20$

Step-by-step explanation:

As stated in the question that x represents the number of minutes his normal commute takes. Here the keyword is normal; in the normal commute, Ken takes side streets instead of the toll road.

However, in this scenario, we have to come up with the equation that takes Ken's commute via toll road.

Ken can travel 3 times faster by taking the toll road (Given), which can be represented in the mathematical terms in terms of x as follows:

$x_{toll\_road}=\frac{1}{3}x$

Without considering Ken getting late, the equation would become the following:

$y=\frac{1}{3} x$ --- (A)

As Ken is leaving late, we have to incorporate that time as well by adding it in the aforementioned equation (A).

In this case, it's 20 minutes; therefore, the equation (A) will become:

$y=\frac{1}{3} x+20$

Hence, the correct answer is $y=\frac{1}{3} x + 20$ .

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3 years ago