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3 years ago

Twice the difference of a number and 7 equals 5

Mathematics

1 answer:

RideAnS [48]3 years ago

4 0

Hey there!

Let's write an equation given this information. We will use x to represent the number.

2(x-7)=5

Now, we use the distributive property to remove the parentheses.

2x-14=5

Now, we add 14 to both sides.

2x=19

We divide both sides by 2.

x=9.5

Therefore, our number is 9.5

I hope this helps!

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You can represent this problem by using the multiplication problem 5x4

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2 years ago

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A family drove a total of 5,300 miles.They drove 10 more miles in tj second half of the trip than the first half. How many did t

AVprozaik [17]

If they drove a total of 5,300 miles in 2 days, and on the second day they drove 10 more miles then the 1st day.

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they drove 10 miles less on the first day

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They drove 2,640 miles on the first day.

Hope this helps. :)

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2 years ago

Alan is building a garden shaped like a rectangle with a semicircle attached to one short side. If he has 70 feet of fencing to

viktelen [127]

The dimension that would give the maximum area is 20.8569

<h3>How to solve for the maximum area</h3>

Let the shorter side be = x

Perimeter of the semi-circle is πx

Twice the Length of the longer side

$[70-(\pi )x -x]$

Length = $[70-(1+\pi )x]/2$

Total area =

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Total area =

$x[[70-(1+\pi )x]/2] + [(\pi )(x/2)^2]/2$

When we square it we would have

$70x +[(\pi /4)-(1+\pi)]x^2$

This gives

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This gives us 20.8569

Read more on areas and dimensions here:

brainly.com/question/19819849

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1 year ago

Write a paragraph explaining what scattered plots are and how to solve them. Make sure to give details, key terms and an example

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Answer:

x = 59°

y = 67°

Step-by-step explanation:

x = y - 8

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(y - 8) + y = 180 - 54

2y - 8 = 126

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y = 67°

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Step-by-step explanation:

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3 years ago

51%, 0.57, 0.61, 6/10 least to greatest

Evgen [1.6K]

Answer:

least is 51%

Step-by-step explanation:

so 51%, .57,6/10 and .61

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2 years ago