3 years ago

Can some one help pls

Mathematics

1 answer:

Talja [164]3 years ago

6 0

Answer:

I don't see the link fix it or something

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vladimir2022 [97]

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3 years ago

An excursion party had $2.00 to pay in total, but before the bill was paid 10 people from the party went away, and those that re

KatRina [158]

Answer:

20 people

Step-by-step explanation:

Let x be the number of people initially. We can find the amount each of them has to pay at first

2 / x

But when 10 people walk away, the remaining (x - 10) has to pay 10 cents more to get the same total of $2. This would means

$(\frac{2}{x} + 0.1)(x-10) = 2$

From here we can perform cross multiplication

$2 - 20/x + 0.1x - 1 = 2$

$0.1x - 20/x - 1 = 0$

Multiply both sides by 10x:

$x^2 -10x - 200 = 0$

$x= \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$

$x= \frac{10\pm \sqrt{(-10)^2 - 4*(1)*(-200)}}{2*(1)}$

$x= \frac{10\pm30}{2}$

x = 20 or x = -10

Since x can only be positive we will pick x = 20

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3 years ago

Solve the simultaneous equations<br> 5x + 6y = 37<br> 2x + 3y = 4

harkovskaia [24]

Answer:

(29, -18)

Step-by-step explanation:

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3 years ago

6 poodles to 18 beagles

JulijaS [17]

Answer:WHY YOU CHEATING LOL

Step-by-step explanation:

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3 years ago

1. Tabitha earns $8.50 per hour at her summer job. She want to save money to buy a tablet that costs $289 plus 6% sales tax. Tab

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306,34=8.50*x+75 |-75
231,34=8,50*x. |:8,50
27,22=x

Tabhita has to work 28 hours to be solvent for the tablet.

*She wants to save money to buy a tablet...*

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3 years ago