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timofeeve [1]
3 years ago
6

Five friends go out to dinner together. The meal comes to $80. Each friend contributes the same amount of money to pay the bill.

how much money should he find each friend contributes?
Mathematics
1 answer:
nlexa [21]3 years ago
8 0
Each friend should give $40 if both of them contribute
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Someone please help me thank you
Igoryamba

Answer:

x = - 1

Step-by-step explanation:

Given

4x = x^2 - 5               Transfer 4x to the right side.

Solution

x^2 - 4x - 5 = 0          Factor

(x - 5)(x + 1)

You want the negative solution. That means that the middle sign must be plus.

x + 1 = 0                   Subtract 10 from both sides

x = - 1                       Ten on the left disappears by the subtraction process.

Is that correct?

4x = x^2 - 5

x = - 10

4*(-1) = (-1)^2 - 5

-4  = ? 1 - 5

-4 = - 4

and it does work.  

8 0
3 years ago
What is the value of the expression 2m + m - 4(-2m +1-m)<br> When m<br> -8?
timama [110]

Answer:

The answer should be -124.

5 0
3 years ago
Help mee please quickkk asapp
UkoKoshka [18]

Answer:114% percent of her budget is used to entertain

Step-by-step explanation: You just add up all the money and minus it by 40%

7 0
3 years ago
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Write one word problem using arithmetic sequences and another using geometric sequences.
Levart [38]
Hey There!

If i got this down right,
An = A1 + (n - 1)d
Sn = A1 + A2 + A3 + ... + An
A1 is given by
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For Example

An = A1 + (n - 1)d
= 6 + 3 (n - 1)
= 3 n + 3
n = 50

Hope This Helps!!!
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VARVARA [1.3K]
Find out what x equals too
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