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2 years ago

What is the answer to 8/? + 5/? = 7/?

Mathematics

1 answer:

disa [49]2 years ago

7 0

Step-by-step explanation:

well, the first solution that comes to my mind is :

8/4 + 5/1 = 7/1

2 + 5 = 7

the reason : the only numerator I can "cut" into integer pieces is 8.

5 and 7 are prime numbers.

so, it tried to keep 5 and 7 whole, and then add a part of 8 to make this equation true. and that worked right away.

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3 years ago

Your typical markup for merchandise is 40%. your cost on an item is $8.00. calculate the selling price.

adoni [48]

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3 years ago

-4x+3x+2x+x=17<br> x-4x+3x+2x=13<br> 2x+x-4x+3x=9<br> 3x+2x+x-4x=1

ella [17]

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Step-by-step explanation:

3 0

3 years ago

PLEASE HELPPP!!!

algol [13]

Answer:

$-32x^5-400x^4-2000x^3-5000x^2-6250x-3124$

Step-by-step explanation:

So what we should do is first expand. What I did was I did it one step at a time, starting with (2x+5)(2x+5). This gave me $4x^2+20x+25$ . I then continued to do this, until I got $32x^5+400x^4+2000x^3+5000x^2+6250x+3125$ . Then you asked me what this would be subtracted from 1. So, what I did was set it so that it would follow this rule, making it $1-(32x^5+400x^4+2000x^3+5000x^2+6250x+3125)$ .

After this, I just simplified.

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3 years ago