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True [87]
3 years ago
12

1. Grace was given the equation 2x + 20 = 15. She decides to add 10 to both sides of the equation. a.) Is that an acceptable mov

e? b.) What would her new equation be?​
Mathematics
1 answer:
vlada-n [284]3 years ago
6 0

9514 1404 393

Answer:

  • yes
  • 2x +30 = 25

Step-by-step explanation:

Adding the same number to both sides of the equation is an acceptable move. The addition property of equality tells Grace that the value of the variable will remain unchanged by such a move.

Her new equation would be ...

  2x +20 +10 = 15 +10

  2x +30 = 25 . . . . the result of Grace's move

_____

<em>Additional comment</em>

There may be very good reasons why Grace would want to do that. If solving the equation is Grace's intent, that move would be counterproductive. For the purpose of solving the equation, it would be more productive to either subtract 20 from both sides, or divide both sides by 2. These steps would give, respectively, ...

  2x = -5

  x +10 = 7.5

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Find two consecutive whole numbers that square root113 lies between.
choli [55]
Sqare √113
113

10^2=100, so √100=10
11^2=121 so √121=11

√100<√113<√121

so therfor
10<√113<11

it is between 10 and 11
3 0
3 years ago
What is the quotient of 13,632 divide by 48
Drupady [299]

Answer:

284

Step-by-step explanation:

13,632/48

8 0
2 years ago
Read 2 more answers
In which year will 67% of babies be born out of wedlock?
Leviafan [203]

Based on the trend of the increase in children born out of wedlock, if this trend keeps increasing, the year with 67% of babies born out of wedlock will be 2055 .

<h3>What year will 67% of babies be born to unmarried parents?</h3><h3 />

In 1990, the 28% of children were born out of wedlock and this trend was increasing by 0.6% per year.

If the trend continues, the number of years till 67% of children born out of wedlock will be:

= (67%  - 28%) / 0.6%

= 65 years

The year will be:

= 1990 + 65

= 2055

The first part of the question is:

According to the National Center for Health Statistics, in 1990, 28% of babies in the United States were born to parents who were not married. Throughout the 1990s, this percentage increased by approximately 0.6 per year.

Find out more on benefits of marriage at brainly.com/question/12132551.

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3 0
1 year ago
Whats 345*28923+808(2829)=
RoseWind [281]

Hi there!

345*28923+808(2829)

The first step put the problem into 2 parts, the first part is 345*28923

The second part is 808(2829)

The parentheses means to multiply that number that it touches.

Add the final 2 answers.

345*28923 = 9,978,435

808(2829) = 2,285,832

Now, add the answers.

9,978,435 + 2,285,832 = 12,264,267

Hope this helped!~

7 0
2 years ago
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The parking lot at a store has a width of 20 yards 2 feet and a length of 30 yards
Liula [17]

Answer:

I guess you are trying to find the perimeter of the parking lot.

the fomula is P= 2L+2W.

Step by step:

20yards( 2 ft )+ 30 yards +20 yards + 30 yards=

100 yards 2 ft.

I hope it's help.

5 0
3 years ago
Read 2 more answers
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