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makvit [3.9K]
4 years ago
15

If y is directly proportional to x and y = 6 when x = 2, what is the proportion equation?

Mathematics
2 answers:
lorasvet [3.4K]4 years ago
8 0

Formula for direct proportion: y = kx

Solution:

6 = 2k

~Divide 2 to both sides

3 = k

Best of Luck!

Ivan4 years ago
7 0

Answer:

y = 3x

Step-by-step explanation:

Direct proportion equation is

y = kx

6 = k*2

Divide each side by 2

6/2 = 2k/2

3 =k

The equation is y = 3x

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The highest and lowest temperatures of Town X were 4°C and -18°C respectively. Find the difference between these two temperature
prisoha [69]

Answer:

Difference: 4-(-18)=22

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Lowest temperature: 12 degrees higher that -18 degrees

                                  = 12+(-18)

                                  = -6 degrees celcius.

Step-by-step explanation:

4 0
3 years ago
A normal random variable with mean and standard deviationboth equal to 10 degrees Celsius. What is the probability that the temp
Korvikt [17]

Answer:

0.57142

Step-by-step explanation:

A normal random variable with mean and standard deviation both equal to 10 degrees Celsius. What is the probability that the temperature at a randomly chosen time will be less than or equal to 59 degrees Fahrenheit?

We are told that the Mean and Standard deviation = 10°C

We convert to Fahrenheit

(10°C × 9/5) + 32 = 50°F

Hence, we solve using z score formula

z = (x-μ)/σ, where

x is the raw score = 59 °F

μ is the population mean = 50 °F

σ is the population standard deviation = 50 °F

z = 59 - 50/50

z = 0.18

Probability value from Z-Table:

P(x ≤59) = 0.57142

The probability that the temperature at a randomly chosen time will be less than or equal to 59 degrees Fahrenheit

is 0.57142

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3 years ago
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Answer:

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4 0
3 years ago
0=8x^2+8x-21 in (x-p)^2=q form
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Step-by-step explanation:

8x² + 8x - 21 = 0

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7 0
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Korolek [52]

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