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photoshop1234 [79]
2 years ago
14

Javier drove 45 miles. this represents 60% of his entire rode trip. what is the total number of miles in javier's trip?

Mathematics
1 answer:
gtnhenbr [62]2 years ago
8 0
45 ÷ .60 = 75


75 miles is the total
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The student government association at a certain college assigns a number to each student enrolled, puts the numbers in order, an
snow_tiger [21]

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Step-by-step explanation:

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2 years ago
A mile-runner’s times for the mile are normally distributed with a mean of 4 min. 3 sec. (This would have to be expressed in dec
Vinvika [58]

Answer: 0.0668

Step-by-step explanation:

Given: Mean : \mu=\text{4 min. 3 sec.=4.05 minutes}

Standard deviation : \sigma = \text{2 seconds=0.033333 minutes }

The formula to calculate z-score is given by :_

z=\dfrac{x-\mu}{\sigma}

For x= 4 minutes  , we have

z=\dfrac{4-4.05}{0.03333}\approx-1.5

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8 0
2 years ago
The histograms below show the heights (in meters) of the tallest buildings in China and the United States.
USPshnik [31]

Answer:

A and B

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I tried it and it was correct. The United states has the tallest... and China has more buildings... are the correct ones.

6 0
2 years ago
The population of Champaign, Illinois is given for three years in the table below:
Crazy boy [7]

Answer:

See below

Step-by-step explanation:

a) <u>Using the first two lines to get the equation:</u>

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<u>Slope is:</u>

  • (168392 - 163488)/10 = 490.4

<u>And the equation:</u>

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As we see the number we got is less than the one on the line 3 of the table. So the model underestimated the actual population.

4 0
1 year ago
XY=4n+3,YZ=2n-7,XZ=22
Agata [3.3K]
Choose one of the equations, then try and rewrite in terms of 1 Unknown, eg I've chosen XZ= 22 and am going to write it in terms of X

XZ = 22
Z = 22/X (this is writing Z in terms of X)
So... X(22/X)= 22
22/X=22X
22 = 22X^2 (* ^2 is to the power 2)
Therefore X = 1
And Z= 22

Use this to solve the remaining equations

1xY = 4n + 3
22Y= 2n - 7
Then rearrange and do simultaneous equations

22Y - 66 = 88n
22Y + 7 = 2n
-73 = 86n
n = -73/86

It is very very likely that I have made a mistake somewhere here given the strange number I have for n but I spent far too long on this not to post it ahaha, even if the numbers are incorrect this is the general method I would follow
7 0
2 years ago
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