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ollegr [7]
3 years ago
10

You and a friend by two fruit smoothies and leave a tip you split the total and your half comes to $3.60 what percent tip did yo

u and your friend leave if the fruit smoothies cost three dollars each
Mathematics
1 answer:
ipn [44]3 years ago
7 0
I believe $1, two of the friends left, if it's not the correct answer I'm sorry.
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Solve using substitution or elimination.<br><br> y = x + 1<br> 2x - 5y = 4
andrew-mc [135]

Substitute y = x + 1 into 2x - 5y = 4

-3x - 5 = 4

Solve for x in -3x - 5 = 4

x = -3

Substitute x = -3 into y = x + 1

y = -2

Therefore,

<u>x = -3</u>

<u>y = -2</u>

5 0
3 years ago
( simultaneous equations)
daser333 [38]

Answer:

See method below.

Step-by-step explanation:

m/n + n/3 = 2

2/m + n = 4    

First  eliminate the fractions by multiplying the first equation by 3n:-

3m + n^2 = 6n...........(1)

and the second equation by m:-

2 + mn = 4m..............(2)

Now we solve using substitution:-

From equation  (2):-

4m - mn = 2

m = 2 / (4 - n)

Now substitute for m in equation (1):-

6/ (4 - n) + n^2 = 6n

6 + n^2(4 - n) = 6n(4 - n)

6 + 4n^2 - n^3 = 24n - 6n^2

n^3 - 10n^2 + 24n - 6 = 0

This will not factor so we could solve this using graphical software.

To find the values of the variable m we substitute the found values of n into one of the original equations and solve for m.






6 0
3 years ago
Which strategy would you use to divide 36÷6?Explain why you chose that strategy.
marusya05 [52]
I would use what times 6 = 36 because 6*6+36 
7 0
3 years ago
Read 2 more answers
Ian walked 4 miles in 90 minutes. Bob walked 7 miles in 2.5 hours. Are these rates in proportion? If no, who walked faster?
Yuliya22 [10]

Answer:

<h3>Bob walked faster than Ion.</h3>

Step-by-step explanation:

90/4=22.5

Ian - 1 mile in 22.5 minutes

2x60=120

60/2=30

120+30=150

150/7=21.43

Bob - 1 mile in 21.43

5 0
3 years ago
Read 2 more answers
Write an equation to represent the following description. The difference of seven times a number and 15 is 41.
chubhunter [2.5K]

Answer: 3

7x + 15 = 41 or 7x - 15 = 41

7 0
2 years ago
Read 2 more answers
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