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3 years ago

Help please need answer soon

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

8 0

Answer:

Step-by-step explanation:

(x+25)(3+2x)-(x+4)(x+1)

=(3x+2x²+75+50x)-(x²+4x+x+4)

=(2x²+53x+75)-(x²+5x+4)

=2x²+53x+75-x²-5x-4

=x²+48x+71

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PLEASE HELP ME ASAP!

Zanzabum

The answer is eighty/ eighty-two

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3 years ago

David, Egil and Frances share money in the ratio 2:7:9. Frances gets ?80 more than David. Explain how you know Egil gets ?80.

Natalija [7]

Step-by-step explanation:

We have been given that David, Egil and Frances share money in the ratio 2:7:9.

Let 2x, 7x and 9x be the amounts of money that David, Agil and Frances get respectively.

We are told that Frances gets $80 more than David. So we can write this information in an equation as:

$9x=2x+80$

Now let us solve for x.

$9x-2x=80$

$7x=80$

$x=\frac{80}{7}$

Now let us substitute $x=\frac{80}{7}$ in 7x (amount of money that Egil gets).

$\text{ Amount of money that Egil will get}=7\cdot \frac{80}{7}$

Upon cancelling out 7 from numerator and denominator we will get,

$\text{ Amount of money that Egil will get}=80$

Therefore, Egil will get $80.

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4 years ago