3 years ago

PLS HELP 50 points

1 answer:

8 0

Remember that there is 100 centimeters in a meter, and 1000 meters in a kilometer. If you multiply both values together (so you have a conversion of centimeters to kilometers) you get 100,000. Therefore, 100,000 centimeters makes a kilometer. Divide 320,000 by 100,000 and you get 3.2. Therefore, a centimeter would represent 3.2 kilometers.

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|-1|+|0.8|<br> simplify the problem

DaniilM [7]

absolute value means always positive

|-1|+|0.8|

1 + .8

1.8

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3 years ago

Read 2 more answers

In a college, 200 students are randomly selected. 140 like tea, 120 like coffee and 80 like both tea and coffee. Number of stude

Grace [21]

Answer:

180

.....................

6 0

3 years ago

Tyrell's SAT math score was in the 64th percentile. If all SAT math scores are normally distributed with a mean of 500 and a sta

jarptica [38.1K]

Answer:

$P(x < 535.8) = 0.64$

$P_{64} = 535.8$

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 500

Standard Deviation, σ = 100

We are given that the distribution of SAT score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.64

P(X<x) = 0.64

$P( X < x) = P( z < \displaystyle\frac{x - 500}{10})=0.64$

Calculation the value from standard normal z table, we have, $p(z$

$\displaystyle\frac{x - 500}{100} = 0.358\\x = 535.8$

$P(x < 535.8) = 0.64$

$P_{64} = 535.8$

8 0

3 years ago

What ordered pair is a solution of 2y-3x=8?

Lynna [10]

Answer:

(6,13)

Step-by-step explanation:

Hope that helps

3 0

3 years ago

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You recently received your verizon wireless phone bill for the month. The total is $70.52. Included in that total is $13.27 in s

weeeeeb [17]

So 70.52 and 13.27

so 13.27 is what percent of 70.52
percent means parts out of 100

what percent of 70.52
'of' can be tranlated to mutiply
13.27=x% times 70.52
13.27=x/100 times 70.52
13.27=70.52x/100
13.27=0.7052x
divide both side by 0.7052
18.82
the answer is 18.8%

the easy way is

to find percent assume 70.27=100
so x/100=
13.27/70.52 then multiply by 100=0.18817 multipliy 100
18.817=round 18.8%

answer is 18.8%

8 0

4 years ago

PLS HELP *50 points*

PLS HELP 50 points