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3 years ago

The equations y = 1/9x relates proportional quantities x and y. what is the value of x when y is 4?

Mathematics

1 answer:

weeeeeb [17]3 years ago

6 0

X = 36

being that you simplify both sides of the equation and solate the variable

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Dinner Bill- $28.15, Tax- 8%, Tip- 15% What is the final cost.

aev [14]

Answer is 34.96$ for the final cost.

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3 years ago

Plz help. jus wanna answer :)

skad [1K]

Answer:

The measure of uT is given = 31.6

and it is given ,that WV bisect the line UT

so,the measurement of US = 31.6/2

 = 15.8 

hope it helps and your day will be full of happiness

8 0

3 years ago

Write an equation for the line below

Stells [14]

The answer is : y = -3x + 1

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4 years ago

After an extensive advertising campaign, the manager of a company expects the proportion of potential customers that recognize a

lina2011 [118]

Answer:

Step-by-step explanation:

Hello!

The study variable is:

X: number of customers that recognize a new product out of 120.

There are two possible recordable outcomes for this variable, the customer can either "recognize the new product" or " don't recognize the new product". The number of trials is fixed, assuming that each customer is independent of the others and the probability of success is the same for all customers, p= 0.6, then we can say this variable has a binomial distribution.

The sample proportion obtained is:

p'= 54/120= 0.45

Considering that the sample size is large enough (n≥30) you can apply the Central Limit Theorem and approximate the distribution of the sample proportion to normal: p' ≈ N(p; $\sqrt{\frac{p(1-p)}{n} }$ )

The other conditions for this approximation are also met: (n*p)≥5 and (n*q)≥5

The probability of getting the calculated sample proportion, or lower is:

P(X≤0.45)= P(Z≤ $\frac{0.45-0.6}{\sqrt{\frac{0.6*0.4}{120} } }$ )= P(Z≤-3.35)= 0.000

This type of problem is for the sample proportion.

I hope this helps!

5 0

3 years ago

The interior of a safe is shaped like a cube with edges 9 inches long. What is the volume of the interior of the safe?

fgiga [73]

Answer:

Assuming that all three sides are 9 inches then the answer should 729.

Step-by-step explanation:

Just multiply 9*9*9. The formula to get volume is (length)*(width)*(height).

3 0

3 years ago