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katovenus [111]
3 years ago
7

The equation 4x – 45 = y is used to find your profit, y, in dollars from buying $45 of supplies and washing cars for $4 each. Wh

at does the x stand for?
1. The cost of the supplies (in dollars)
2. The total profit (in dollars)
3. The number of cars washed
4. The cost (in dollars) per car
Mathematics
1 answer:
alex41 [277]3 years ago
5 0
It would be the number of cars washed for X

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Pls help oooooooooooo
Digiron [165]

Answer:

110

Step-by-step explanation:

Suppose lines EH and BD are parallel:

Angle <GFE and angle <ABC are supplementary so their sum is equal to 180

2x + 10 + x  + 20 = 180 add like terms

3x + 30 = 180 subtract 30 from both sides

3x = 150 divide both sides by 3

x = 50

We are asked the value of <ACD

<ABD and <ACD are also supplementary so we can find the value od <ACD:

x + 20 + <ACD = 180 we know x = 50 so we can replace x with that

50 + 20 + <ACD = 180

70 + <ACD = 180 subtract 79 from both sides

<ACD = 110

3 0
1 year ago
Factorise 3(x-y)^2 - 2(x-y)
a_sh-v [17]

Answer:

4xy

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Researchers have discovered a new genetic marker for a form of cancer. Twelve percent of the overall population carry this marke
In-s [12.5K]

Answer:

The probability that a person with the marker develops cancer is 0.0725.

Step-by-step explanation:

Let's denote the events as follows:

<em>A</em> = a person has cancer

<em>B</em> = a person carries the marker.

<u>Given:</u>

P (A) = 0.03

P (B) = 0.12

P (B|A) = 0.29

The conditional probability of an event <em>X</em> provided that another event <em>Y</em> has already occurred is:

P(X|Y)=\frac{P(Y|X)P(X)}{P(Y)}

Use the conditional probability formula to compute the probability that a person with the marker develops cancer.

P(A|B)=\frac{P(B|A)P(A)}{P(B)} =\frac{0.29\times0.03}{0.12}=0.0725

Thus, the probability that a person with the marker develops cancer is 0.0725.

3 0
3 years ago
Jack can paint 1 house in 3 days. Find Jack’s rate per day for painting houses.
Eduardwww [97]

Answer:

Jack can paint a certain room in 3 hours, lisa is 4 hours, and sue in 2 hours. ... Jack's rate is one-third of a job per hour, Lisa's is one-fourth of a job per hour and Sue's is one-half of a job per hour. If they all work together for t hours, one whole job is completed. t/3 + t/4 + t/2 = 1 .

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
30PTS!!! PLEASE HELP its probably really easy i am just dumb
Nutka1998 [239]

Answer:

PA is equal to PB

now apply distance formula root under x2-x1whole square plus y2-y1 whole square...do the same in another side ,put the values you will get the and.

4 0
3 years ago
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