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AnnyKZ [126]
4 years ago
7

-12 = 7w I don't understand how this works

Mathematics
1 answer:
Makovka662 [10]4 years ago
5 0

Answer:

12/7 or 1.71428571429

Step-by-step explanation:

You have to isolate the variable to get the w by itself. It's right next to a 7 which also means 7 multiplied by w. We need to cancel out the seven to isolate the variable so to do this we divide by 7. We also need to do this to the other side of equation to keep it balanced.

-12 = 7w

/7      /7

-1.714...=w

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A fitness center has two membership plans. One has low dollar sign up fee of 15 dollars and cost 38 dollars a month to join. A s
nydimaria [60]

Answer:

The number of months cost same is 9

Step-by-step explanation:

Given:

Equation for the first plan y = 38x + 15  

Equation for the second plan y = 31x + 78.

where x is the number of month

Solution:

38x + 15 = 31x + 78

7x + 15 = 78

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7 0
4 years ago
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Step-by-step explanation:

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3 years ago
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3 years ago
Suppose the dial on the spinner is spun 2 times in a row.
Ivenika [448]

The probability of one success and one failure will be 4/9. Table C represents the probability distribution for the variable X.

<h3>What is probability?</h3>

The chances of an event occurring are defined by probability. Probability has several uses in games, in business to create probability-based forecasts,

The dials on the spinner are spun 2 times in a row.

P(dial lands on region)=P(success) = 2/3

P(failure) = 1/3

The probability that the two times dials on the spinner are not spun 2 times in a row.

P = (1/3)² = 1/9

The probability that the two times dials on the spinner are spun 2 times in a row.

P = (2/3)²= 4/9

One may calculate the probability of one success and one failure using the binomial distribution or by simply deducting the probabilities we previously determined from 1.

P = 1 - 1/9 - 4/9

P = 4/9

The probability of one success and one failure will be 4/9.

Hence table C represents the probability distribution for the variable

X.

To learn more about the probability, refer to the link;

brainly.com/question/11234923

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3 0
2 years ago
Evaluate The Expression 3(× - 1)² +2× - 7 for × = 3
jeyben [28]

\bf 3(x-1)^2+2x-7\implies \stackrel{\stackrel{x=3}{\cfrac{}{}}}{3[(3)-1]^2+2(3)-7}\implies 3[2]^2+6-7 \\\\\\ 3[4]+(-1)\implies 12-1\implies 11

6 0
4 years ago
Read 2 more answers
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