HELLLPPPP! WORTH 15 POINTS!! What is the constant of proportionality in the equation y = 5/9x?

Mathematics

2 answers:

ExtremeBDS [4]4 years ago

7 0

Hope this answer helps you

Svetlanka [38]4 years ago

3 0

Answer:

k=5/9

Step-by-step explanation:

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18 is 45% of what number? ____<br> Please help me I can't solve this

Alexxx [7]

18/x = 45/100

cross multiply

18/x * 45/100

45x =1800

divide both sides by 45

45x/45 =1800/45

x=40

18 is 45% of 40

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3 years ago

If 3 is 5% of a number, what is 30% of that number?

Gre4nikov [31]

3=5%
times both sides by 6
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3 years ago

After the movie premiere 99 out of 130 people surveyed said they liked the movie what is the experimental probability that the n

sp2606 [1]

.24 or 24% people will say they did not like the movie, because if 99/130 liked it, that means 31/130 day they do not like it, and that simplified into a decimal is .24, which also equals 24%

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4 years ago

Find the percent error for the length of the soccer field. Round your answer to the nearest tenth.

maxonik [38]

Answer:

The percent error of the length of the soccer field is 1.4%

Step-by-step explanation:

Actual length of soccer field = 500 feet

Length shown in measuring instrument = 493 feet

We need to find the percent error of the length of the soccer field.

The formula used to find percent error of the length of the soccer field is: $Percent\:error=\frac{approximate\;value-exact\:value}{exact\:value}\times 100\%$

The exact length = 500

Approximate length = 493

Putting values and finding percent error

$Percent\:error=|\frac{approximate\;value-exact\:value}{exact\:value}|\times 100\%\\Percent\:error=|\frac{493-500}{500}|\times 100\%\\Percent\:error=|-0.014|\times 100\%\\Percent\:error=0.014\times 100\%\\Percent\:error=1.4\%$