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Genrish500 [490]
3 years ago
15

3(3b +2)=-30 what is b =

Mathematics
1 answer:
ycow [4]3 years ago
4 0
3(3b+2)=-30  perform indicated multiplication on left side...

9b+6=-30  subtract 6 from both sides

9b=-36  divide both sides by 9

b=-4
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Calcular la edades actuales de una madre y sus dos hijos sabiendo que hace 14 años la dad de la madre era 5
rodikova [14]

The present age of mother and her daughter respectively are; 40 and 10 years respectively.

<h3>How to Solve Algebra Word Problems?</h3>

Let x and y be the present age of mother and her daughter respectively.

Therefore;

x + y = 50

x = 50 − y     .....(1)

After 20 years, mother's age will be twice her daughter's age at the time. Thus;

x + 20 = 2(y + 20)

x − 2y = 20     .....(2)

Plugging eq 1 into eq 2 gives us;

50 − y − 2y = 20

3y = 30

y = 10

Thus;

x = 50 − 10

x = 40

Thus, the present age of mother and her daughter is 40 and 10 years respectively.

Translation of the question into English is;

The sum of the present ages of mother and her daughter is 50 years. After 20 years, mother's age will be twice her daughter's age at the time. Find their present ages.

Read more about Algebra Word Problems at; brainly.com/question/21405634

#SPJ1

6 0
1 year ago
The new number, 550, is 200 more than the original number. What is the approximate percent change?
Volgvan

Answer:150

Step-by-step explanation: you see what makes 550 200 plus what 350 then it equal 550 then you see 200 plus what equals 350 150 so that is a 150%

3 0
2 years ago
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Please I need help with the rest of my question.
eduard

Answer:

x-intercept (4,0)

y-intercept (0,10)

Step-by-step explanation:

3 0
3 years ago
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What is a credit report? a. A credit report is a number representing your creditworthiness. b. A credit report is a detailed lis
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A credit report is a detailed listing of your credit history.

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Answer:

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m=2.5003

and

x=2.5009

Step-by-step explanation:

hope this is what you are looking for

have a nice day ^_^

6 0
2 years ago
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