3 years ago

Ravi lost 80 dollars from his pocket.Write a signed number to represent this change.

Mathematics

1 answer:

Mariana [72]3 years ago

5 0

Answer:

x - 80

Step-by-step explanation:

Ravi had x dollars in all.

x - 80

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11 months 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.

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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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3 years ago

Ravi lost 80 dollars from his pocket.Write a signed number to represent this change.​

Ravi lost 80 dollars from his pocket.Write a signed number to represent this change.