MATHEMATICS MIDDLE SCHOOL

If a - 3= 7, then 2a - 14 =

Answers

Answer 1
Answer: a=7+3   ->   a=10

2a-14= 2×10-14
        =20-14
        =6

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the distance between Columbus Ohio and New York City is about 560 miles how many hours would it take the train to travel between cities

Answers

The number of hours the train took to travel between the two cities is 2.09 hours.

Given that,

The distance between Columbus, Ohio, and New York City is about 560 miles.

And, The train travels 268 miles an hour.

We need to find out how many hours would it take the train to travel between the two cities.

Here, the train speed is,

= 268 miles per hour

And, the distance between the two cities.

= 560 miles

We have,

268 miles = 1 hour

Multiply both sides by 560

560 x 268 miles = 560 x 1 hour

Divide both sides by 268

560 miles = (560/268) x 1 hour

560 miles = 2.09 hours

Hence, the train will take 2.09 hours to travel 560 miles,

Learn more about the multiplication visit:

brainly.com/question/10873737

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The complete question is,

The distance between Columbus, Ohio, and New York City is about 560 miles how many hours would it take the train to travel between the two cities The train travels 268 miles an hour.
2144 miles in 8 hours. In 1 hour = 2144 / 8 = miles in 1 hour and that = 268

Pada suatu deret geometri diketahui suku ke-3 = 18 dan suku ke-6 = 486. suku pertama pada deret tersebut adalah...

Answers

a . r^(3-1) = 18
a . r^2 = 18...... (i)

a . r^(6-1) = 486
a . r^5 = 486 ...... (ii)

dengan membuat perbandingan dari kedua persamaan diperoleh:
r^2/r^5 = 18/486
1/r^3 = 1/27 
r^3 = 27
r = akar pangkat 3 dari 27 
r = 3

dari persamaan a . r^2 = 18...... (i)
                          a . 3^2 = 18
                          a . 9 = 18
                          a      = 18/9 = 2

How to turn 14/5,7/5,11/5 into whole fractions

Answers

You can multiply all of them by 5. And they become whole 'numbers'.
Or, you can divide 14 by 5 which is 2.something. But almost 3.
So here is how to do it. Get the numerator and divide the number by the denominator.
Then take the whole numbers, ta da! Solved. Or you can use a calculator if u want. 
Thanks
try to put it in the calculator by dividing it 

Mark said that the number 0.05 has a value 10 times greater than 0.5 is he correct

Answers

No he is not because 0.5 would be 0.50 and 0.05 is lower than 0.5

Test review ? Can you help me with solving 1-3 please

Answers

1-3= -2 cause you basically subtract it how you normally would but then add a negative symbol infront of it

What is 6.245 rounded to the nearest hundredth?

Answers

6.25. Because the 5 makes the 4 round up to the next digit which is 5
6.25 anything at or above five rounds up the other number.
Other Questions
In order to raise money for holiday gifts for your family, you are planning on starting a dog walking and car wash business. You earn $12 per hour while dog walking and $18 per hour washing cars. You need to earn at least $600 during the month of November.1.Assign a variable to represent the number of hours that you will spend dog walking in November. Write an expression to represent the amount of money you need to earn while dog walking. 2.Assign a variable to represent the number of hours that you will spend washing cars in November. Write an expression to represent the amount of money you need to earn while washing cars. 3.Write an algebraic model using inequalities that represents the total amount of money earned by dog walking and washing cars during the month of November. 4.Graph the algebraic model in the first quadrant only. Let the x-axis be the number of hours spent dog walking and the y-axis be the number of hours spent washing cars. Click here for a sheet of graph paper to print.. 5.Use the graph and algebraic model to answer the following: a.Why does the graph exist only in the first quadrant? b.Are you able to earn exactly $600? Use the solutions of the system to find possible combinations of outcomes that equal exactly $600. Where do all of the combinations occur in the graph? c.Is it possible to earn more than $600? Use the solutions of the system to find possible combinations of outcomes that are greater than $600. Where do all of the combinations occur in the graph? d.If you work for 10 hours walking dogs and 10 hours washing cars, will you have earned enough money for the holiday gifts? Where does 10 hours walking dogs and 10 hours washing cars fall on the graph? Is this location representative of the solution to the algebraic model? Click here for a sheet of graph paper to print.. 6.How would the algebraic model be different if you needed to earn more than $600? Adjust your algebraic model to show that you must earn more than $600. Would the graph of the model be different from the original? Would you include the line in the solution? What type of line represents "more than"? Graph your new algebraic model . 7.In complete sentences, explain the difference between a solid line and a dashed line when graphing an inequality. When graphing the two algebraic models, how did you determine which type of line to use? 8.How did you determine which part of the graph of the inequality to shade? What does the shaded area tell you? What does the area that is not shaded tell you?
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