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1 year ago

Hi uwu pls help me with math i'm bad at it :(

Mathematics

1 answer:

DedPeter [7]1 year ago

7 0

Answer:

Question #1: p=18

Question #2: uwu sorry I had trouble with this one too

Question #3: $65.10

Step-by-step explanation:

Question #1:

Step 1: multiply 4 by both products in the parenthesis to get 4p - 28 = 44,

Step 2: move the 28 to the other side so you have 4p = 44 + 28,

Step 3: add both products on the right to get 4p = 72,

Step 4: divide 4 on both sides so you are left with p = 72 ÷ 4,

Step 5: the equation to get the total of p = 18

Question #3:

Step 1: Simplify 30% to 0.30 (30÷100)

Step 2: multiply 0.30 by 42 to get 12.6

Step 3: Simplify 25%, (not sure how but) 10.5

Step 4: Add 42.00 + 12.6 + 10.5 = $65.10

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The statement some dogs are brown has 16 letters. Choose one of these 16 letters uniformly at random (i.e., with equal probabili

andre [41]

Answer:

Rx = {5,4,3}

The probability mass function can be formulated like this:

Px (3) = p (X = 3) = 3/16

Px (4) = p (X = 4) = 8/16

Px (5) = p (X = 5) = 5/16

Step-by-step explanation:

We have that the probability of choosing a letter (1) at random from the sentence would be 1/16.

We must first finish the length of each word:

some = 4 letters

dogs = 4 letters

are = 3 letters

brown = 5 letters

Therefore, the possible values, that is, the range would be:

Rx = {5,4,3}

since the range has finite set, then the random variable X is discrete random variable

now to find the probability mass function of X and it can be defined as:

Px (X) = P (X = x); where x = 3, 4, 5

Px (3) = p (X = 3)

It will be equal sum of probalities of all the letters that can form the three letter word "are" by letters A, R, E

Probability of getting length 3 when a letter is drawm from the some dogs are brown:

1/16 + 1/16 + 1/16 = 3/16

Px (4) = p (X = 4)

It will be equal sum of probalities of all the letters that can form the four letter word "some" and "dogs" by letters S, O, M, E, D, O, G, S

Probability of getting length 4 when a letter is drawm from the some dogs are brown:

1/16 + 1/16 + 1/16 + 1/16 + 1/16 + 1/16 +1/16 + 1/16 = 8/16

Px (5) = p (X = 5)

It will be equal sum of probalities of all the letters that can form the five letter word "brown" by letters B, R, O, W, N

Probability of getting length 5 when a letter is drawm from the some dogs are brown:

1/16 + 1/16 + 1/16 + 1/16 + 1/16 = 5/16

X 3 4 5

p(X) 3/16 8/16 5/16

4 0

2 years ago

From recent polls about customer satisfaction, you know that 85% of the clients of your company are highly satisfied and want to

Lubov Fominskaja [6]

Answer:it doesnt matter what you choose for this one a or b

Step-by-step explanation:

7 0

1 year ago

Read 2 more answers

Calculate the equation of the line if two points are (1,6) and (5,0) Hint, you will have to find the slope of the line and then

motikmotik

Answer:

The equation is $y=\frac{-3}{2} x-9$

Step-by-step explanation:

First, you will have to find the slope of the two points.To do that, you will have to use the formula : $m=\frac{y_{2}-y_{1} }{x_{2} -x_{1} }$

Our points are $(1,6)$ and $(5,0)$

We will have to substitute the points into the formula.

$m=\frac{0-6}{5-1}$

Then, we will simplify

$m= \frac{-6}{4}$

We could simplify that fraction into $\frac{-3}{2}$

So, our slope is $\frac{-3}{2}$

We will have to pick a coordinate point, and choose. I chose $(1,6)$

We will substitute the x-value and the y-value of the coordinate point, including our slope, to calculate the y-intercept.

The formula we will be using is $y=mx+b$

We will substitute in our values which will make it look like:

$6=\frac{-3}{2} (1)+b$

We will then multiply $\frac{-3}{2}$ by $1$ which will stay the same.

Then, we will multiply $\frac{-3}{2}$ by $6$ which will equal $-9$

$-9=b$

Hence, the equation for our line is $y=\frac{-3}{2} x-9$

Hope it helped:D

5 0

1 year ago

You and your friend each collect rocks and fossils. Your friend collects three times as many rocks and half as many fossils as y

pochemuha

Answer:

I collect 4 rocks and 16 fossils. While my friend collects 12 rocks and 8 fossils.

Step-by-step explanation:

The number of total objects collected by me = 20

The number of objects collected by my friend = 20

Let us assume:

The number of rocks collected by me = m

The number of fossils collected by me = 2 k

⇒ m + 2 k = 20 .... (1)

So, according to the question:

The number of rocks collected by my friend = 3 x (rocks collected by me)

= 3 x (m) = 3 m

The number of fossils collected by my friend = 1/2 x (fossils collected by me) = 1/2 x (2k ) = k

⇒ 3 m + k = 20 .... (2)

Solving (1)and (2) for the value of m and k, we get:

m + 2 k = 20 ⇒ m = 20 - 2 k ... Put this in (2)

3 m + k = 20 ⇒ 3 (20 - 2 k) + k = 20

⇒ 60 - 6 k + k = 20

or, - 5k = -40

or, k = 40/5 = 8

⇒ k= 8

m + 2(8) = 20

or, m = 4

Hence, the number of rocks collected by me = m = 4

The number of fossils collected by me = 2 k = 2 (4) = 16

Hence, the number of rocks collected by my friend = 3 m = 3 x 4 = 12

The number of fossils collected by my friend = k = 8

Hence, I collect 4 rocks and 16 fossils. While my friend collects 12 rocks and 8 fossils.

4 0

1 year ago

An object was moving at a rate of 18.2 feet per second for 38.5 seconds. How far did the object travel?

lidiya [134]

Answer:

700.7

Step-by-step explanation:

You're looking for distance. So all you have to do is 18.2 x 28.5 and you'll get your answer.

Hope this helps. :)

4 0

2 years ago