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pashok25 [27]
3 years ago
10

A train travels at 80 miles per hour. What equation that compares the time (t) with the distance (d)?

Mathematics
2 answers:
jekas [21]3 years ago
6 0

Answer:

80 (t) = d

Step-by-step explanation:

t means time so if the train travels 2 hours

80×2=160miles

garri49 [273]3 years ago
3 0

A

Step-by-step explanation:

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What is the dimension of a rectangle if the perimeter is 198
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Answer:

Length = 49.5 unit and width = 49.5 unit

Step-by-step explanation:

Given as , Perimeter of rectangle = 198 unit

so ,as Perimeter of rectangle = 2× ( Length + width)

Or,                                   198 = 2 ×  (Length + width)

Or,                                   \frac{198}{2} = length + width

So, length + width = 99 unit

Now to make area maximum

Length × width = maximum

Or, (99 - width ) × width = maximum

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Now differentiate both side with respect to W

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So, 99 - 2w = 0

Or, w = \frac{99}{2}

Or, w = 49.5 unit    and L = 99- 4905 = 49.5 unit      Answer

3 0
3 years ago
Find the sum using the formulas for the sums of powers of integers ( problem attached )
Natasha2012 [34]

Correct Answer: - 550

We can use the distributive property to distribute the summation to the variables and then get the constant out to apply the summation formulas as shown below in the attached image.

The equation editor does not have a summation symbol, so I have attached the solution using the image.

The correct answer to this question is -550. First option is the correct one.

7 0
3 years ago
Explain how to solve -4(1.75 + x) =18
kobusy [5.1K]

Answer:

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Step-by-step explanation:

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devlian [24]
Add it tighter and it will make ur number then subtract that
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