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pashok25 [27]
3 years ago
8

Evaluate -2/7 - 3/8 + 1/4 + 2/7

Mathematics
1 answer:
alina1380 [7]3 years ago
8 0

Answer:

its exact form is -1/8

its decimal form is -0.125

Step-by-step explanation:

you do the math to the fractions accordingly and then simplify your answer to whichever form

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Algebra about ages please help
valentinak56 [21]

To solve this problem, we need to recognize that Harry's age is given as "n".  We can use this value and the given information to write expressions representing each person's age.

For Example, Jo is 2 years older than Harry and Harry's age is represented by the variable n.  This means that n (Harry's age) plus 2 would equal Jo's age.  This can be represented by the expression: n +2.

Next, we know that Kate is twice as old as Jo, and Jo's age is represented by the expression n+2.  This means that 2 times Jo's age would be equal to Kate's age, or Kate's age = 2(n+2) or 2n +4.

Therefore, your answer is that Jo's age is n + 2 and Kate's age is 2n + 4.

Hope this helps!

3 0
3 years ago
So in my math homework lesson today we are learning “Solve One-Step Problems”. I don’t completely understand how to do it. I was
Sedaia [141]

Answer:

Step-by-step explanation:

So, in this problem, we're given the size of the of the file. We are also given the rate of change of the amount-downloaded function.

Notice how the transfer rate is in units of time (25.2 MB/s means 25.2 MB per second).

If we want to calculate how <em>long</em> it'll take to download the entire file, we have to divide the file size by the amount of the MB downloaded in one second. (This is assuming the download rate is constant, in the case it isn't constant, you would use calculus) This will find the total number of seconds needed to download the entire file.

We're essentially solving for t in the equation

400.6 = 25.2t

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7 0
3 years ago
Find the slope of the line that passes through the points ( -2,3) and (7,-4)
Triss [41]

Answer:

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Step-by-step explanation:

8 0
2 years ago
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Answer:

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Step-by-step explanation:

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AlexFokin [52]

Step-by-step explanation:

If you were asking what is the 3/4 the area of circle with radius 4 I can answer this.

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3/4*16π= 12π, thus your answer.

7 0
3 years ago
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