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4 years ago

Give a real-world situation that could be represented by the equation Y=4x

1 answer:

7 0

Y = 4x

your going to the clothing store to buy 4 shirts ....each shirt costs x dollars. The y would represent the total cost of all 4 shirts.

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What are all the factor pairs of 28?

baherus [9]

Answer: All the factor pairs of 28 are:

1, 2, 4, 7, 14, 28

Step-by-step explanation:

We can move from the outsides on opposite sides (->this way<-) and pair the numbers together to make sets of the number that will multiply to make 28

6 0

4 years ago

9-b9−b9, minus, b when b=8b=8

DochEvi [55]

The correct answer is 62

3 0

3 years ago

If u walked 5 miles down a trail and then walked 2 1/4 miles back, how many miles away are you from your starting point?

Mandarinka [93]

Answer:

2 3/4

Step-by-step explanation:

1. Don't look at the fraction, calculate the number

2. 5-2= 3

3. add in the fraction, 3-1/4=2 3/4

4. check, does 2 3/4 add 2 1/4 equals to 5?

4 0

3 years ago

Read 2 more answers

A professor, transferred from Toronto to New York, needs to sell his house in Toronto quickly. Someone has offered to buy his ho

I am Lyosha [343]

Answer:

(a) = 40%

(b) = 28%

Standard deviation = $7,216.88

Step-by-step explanation:

This is a normal distribution with a = 210,000 and b =235,000

(a) The probability that he will get at least $225,000 for the house is:

$P(X\geq 225,000) =1 -\frac{225,000-a}{b-a} =1-\frac{225,000-210,000}{235,000-210,000} \\P(X\geq 225,000) =0.4= 40\%$

(b)The probability he will get less than $217,000 is:

$P(X\leq 217,000) =\frac{217,000-a}{b-a} =\frac{217,000-210,000}{235,000-210,000} \\P(X\leq 217,000) =0.28= 28\%$

(c) The expected value (E) and the standard deviation (S) are:

$E=\frac{a+b}{2}=\frac{210,000+235,000}{2}\\ E=\$222,500\\S=\frac{b-a}{\sqrt{12}}=\frac{235,000-210,000}{\sqrt{12}}\\S=\$7,216.88$

4 0

3 years ago

Find w(4) for the function w(x) = 3x + 7.

marysya [2.9K]

W(4) tells that x=4. So, just put instead of x, number 4.
$w(4)=3\cdot 4+7=12+7=19$

8 0

3 years ago