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1 year ago

I need help on this 6th grade math problem

Mathematics

2 answers:

Strike441 [17]1 year ago

6 0

Answer: B) 12.5

Step-by-step explanation:

Start by isolating x by subtracting 2.5 from both sides

$x+2.5 < 20\\x+2.5-2.5 < 20-2.5\\x < 17.5$

This reads as "x is less than 17.5"

D can be eliminated because it is greater than 17.5

C can be eliminated because 17.5 can't be less than itself

So the answer must be B since it is less than 17.5 and greater than A

vivado [14]1 year ago

4 0

Answer: x<17.5

Step-by-step explanation:

Subtract from both sides: x+2.5-2.5<20-2.5

Simplify the arithmetic: x<20-2.5

Simplify the arithmetic: x<17.5

Hope it helps!

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. In the Journal of Transportation Engineering (June 2005), the number of non-home-based trips per day taken by drivers in Korea

Temka [501]

Answer:

So, the probability that a randomly selected Korean driver will take two or more non-home-based trips per day is P=0.32.

Step-by-step explanation:

We know that the number of non-home-based trips per day taken by drivers in Korea was modeled using the Poisson distribution with λ = 1.15.

We have the Poisson formula:

$P(X=k)=\frac{\lambda^k\cdot e^{-\lambda}}{k!}$

We calculate:

$P(X\geq 2)=1-P(X=0)-P(X=1)\\\\P(X\geq 2)=1-\frac{1.15^0\cdot e^{-1.15}}{0!}-\frac{1.15^1\cdot e^{-1.15}}{1!}\\\\P(X\geq 2)=1-0.32-0.36\\\\P(X\geq 2)=0.32$

So, the probability that a randomly selected Korean driver will take two or more non-home-based trips per day is P=0.32.

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3 years ago

Got a question on my math quiz asking the questions below. The question marked me as wrong, but didn’t tell me what I got wrong/

Vikki [24]

Answer:

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3 years ago

Explain how to write 50,000 using exponents . Thanks !

guapka [62]

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3 years ago

X + 5 > 7<br> it’s inequalities

Hatshy [7]

Answer:

X>2

Step-by-step explanation:

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3 years ago

Read 2 more answers

The fives in which number represent 500 and 50,000?

german

Answer:

251,576

Step-by-step explanation:

first look at the them thousands place, see that it has a "5" in it, and also look for the "5" in the hundred's place

That number has 5 in both the ten-thousands, and the hundreds place and the rest don't have both.

(Hope that helps explain the brain teaser)

7 0

3 years ago