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3 years ago

Benji hiked 3 miles in 2.5 hours. Find the unit rate

Mathematics

1 answer:

Drupady [299]3 years ago

3 0

Answer:

1.2 miles per hour

Step-by-step explanation:

I did this a long time time ago but I believe I am correct.

Hope this helps!

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|3w + 4| = 6w + 1 (absolute value equations. With work to explain it please..

sergiy2304 [10]

Answer:

w= 1 and w= -5/9

Step-by-step explanation:

Because you have an absolute value that means that there are 2 possibilities

either (3x +4) is positive or negative. Will work each case and that will give us the answers.

If (3x+4) is positive we have the equation

3w+ 4 = 6w +1 , subtract 3w from both sides

4 = 6w-3w+1, subtract 1 from both sides

4-1 = 6w-3w, combine like terms

3 = 3w , divide both sides by 3

1 = w

If (3x+4) is negative we have the equation

-(3w+ 4) = 6w +1 , distribute the negative sign in parentheses

-3w -4 = 6w +1, add 3w and subtract 1 from both sides of the equation

-4 -1 = 6w +3w, combine like terms

-5 = 9w , divide both sides by 9

(-5/9) = w

7 0

3 years ago

Read 2 more answers

On the planet of Mercury, 4-year-olds average 3 hours a day unsupervised. Most of the unsupervised children live in rural areas,

erastova [34]

Answer:

The distribution of X is normal

$P(X < 1.4) = 0.12654$

$P(X > 3.5) = 0.36051$

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 3 \ hours$

The standard deviation is $\sigma = 1.4 \ hours$

Generally given from the question that the amount of time spent alone by the population size is normally distributed then then the distribution of X (i.e the amount of time spent by the sample size (the one Mercurian)) will be normally distributed

Generally the probability that the child spend less than one hour in a day is mathematically represented as

$P(X < 1.4) = P(\frac{X - \mu}{\sigma} < \frac{1.4 - \mu}{\sigma} )$

Here $\frac{X - \mu}{\sigma } = Z (The\ standardized\ value\ of\ X)$

$P(X < 1.4) = P(Z < \frac{1.4 - 3.0}{1.4} )$

$P(X < 1.4) = P(Z < -1.1429 )$

From the z-table the value of

$P(Z < -1.1429 )=0.12654$

So $P(X < 1.4) = 0.12654$

Generally the percentage of children that spends over 3.5 hours unsupervised is mathematically represented as

$P(X > 3.5) = P(\frac{X - \mu}{\sigma} > \frac{3.5 - \mu}{\sigma} )$

$P(X > 3.5) = P(Z > \frac{3.5 - 3.0}{1.4} )$

$P(X > 3.5) = P(Z > 0.3571 )$

From the z-table the value of

$P(Z >0.3571 )=0.36051$

So $P(X > 3.5) = 0.36051$

5 0

3 years ago

Expand the decimal number 453682

tester [92]

0.453682

= 0.4+0.05+0.003+0.0006+0.00008+0.000002

453682.0

= 400000+50000+3000+600+80+2+0.0

Must click thanks and mark brainliest

5 0

3 years ago

Please answer asap please

viva [34]

70+70= 140 points gained minus 145 points lost or 140 - 145= -5 points.

3 0

3 years ago

Given cot A = 5/6 and that angle A is in Quadrant I, find the exact value of csc A in

Lerok [7]

Answer: well search It up 1/10

Step-by-step explanation:

8 0

3 years ago