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2 years ago

How do you delete a question

Mathematics

1 answer:

Alina [70]2 years ago

3 0

Answer:

you have to try to delete it before five minutes and in that time you'll see three dots beside the question tap it and you will be able to delete it

Step-by-step explanation:

or I think that's how you do it because I deleted an answer that way

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Pedro le dice a María si cambias los billetes de 10 € que tienes por billetes de 5 € y los billetes de 5 € por billetes de 10 €

Bad White [126]

Answer: Maria has 10 bills of 5€ and 10 bills of 10€.

She has a total of 150€.

Step-by-step explanation:

Let be "f" the number of 5€ bills that Maria has and "t" the number of 10€ bills that Maria has.

Set up a system of equations:

$\left \{ {{f+t=20} \atop {5f+10t=10f+5t}} \right.$

Use the Substitution method to solve the system of equations:

1. Solve for "f" from the first equation:

$f=20-t$

2. Substitute the equation obtained into the second equation and solve for "t".

Then:

$5(20-t)+10t=10(20-t)+5t\\\\100-5t+10t=200-10t+5t\\\\20t-10t=100\\\\t=\frac{100}{10}\\\\t=10$

3. Substitute the value of "t" into the equation $f=20-t$ and evaluate:

$f=20-10\\\\f=10$

Therefore, Maria has 10 bills of 5€ and 10 bills of 10 €.

So the total amount of money she has, is:

$Total=10(5)+10(10)=150$

She has a total of 150€.

5 0

3 years ago

PLSSS HELP ME!!!!!!!

DanielleElmas [232]

Answer:

y=15

Step-by-step explanation:

Because of the exterior angle theorem angle A plus angle b or equal to 146.

so you set 5y+3+4y+8=146 and solve

5y+3+4y+8=146

9y+11=146

9y=135

y=15

7 0

2 years ago

Read 2 more answers

What are the first 6 nonzero multiples of 15?

Sphinxa [80]

5,10,15,20,25,30,35,40,45,50,55,60 or 6,12,18,24,30,36,42,48,54,60,66,72

8 0

3 years ago

Read 2 more answers

The N71-90 virus will give an infected person a mild rash on their arms once the person has 1 billion of the virus cells in thei

Naya [18.7K]

Answer:

B. 256

Step-by-step explanation:

Given function:

v(h) = 2^(h/4)

It can be rewritten as:

v(d) = 2^d, where d- number of divisions

If number of divisions is 8, then:

v(8) = 2^8 = 256 virus cells

Correct choice is B

4 0

2 years ago

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Which expression is equivalent to x^2+2x+2

Aneli [31]

Do not click on that oh and I think the answer is a

8 0

2 years ago