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eduard
1 year ago
6

Boiling an egg physcal or chemcal

Mathematics
1 answer:
SpyIntel [72]1 year ago
3 0

Answer:

it's a chemical change.

Step-by-step explanation:

a raw egg is converted into a hard boiled one by chemical changes happening inside it. Its also an irreversible change

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Abraham has visited 10 countries already. He has a goal of visiting at least 50 countries. He plans to achieve this goal by visi
olasank [31]

Given :

Abraham has visited 10 countries already. He has a goal of visiting at least 50 countries.

He plans to achieve this goal by visiting 5 new countries per year (y) for the next several years.

To Find :

Which inequality and solution shows the amount of years that it will take for Abraham to meet his goal.

Solution :

Let, after x years Abraham visited y countries.

It is mathematically given as :

10 + 5x=y

Now, it is given that his goal is minimum of 50 countries.

So,

10+5x \ge 50\\\\5x\ge 40\\\\x \ge 8

Therefore, minimum years required to meet his goals are 8.

Hence, this is the required solution.

4 0
3 years ago
How can you determine whether a sum of numbers, such as 127 + 38, is
N76 [4]

Answer:

Even + Even = Even

Odd + Odd = Even

Even + Odd = Odd

8 0
2 years ago
What is an equation of the line that passes through the point (-4,-6) and is
Bess [88]

Answer:

2x-y=6

2*(-4)-(-6)=6

-8+6=6

-2=6

8 0
3 years ago
Is (3,-1) a solution of this system: y=2-x 3-2y=2x
I am Lyosha [343]
Plug in (3,-1) into equations to see:
-1=2-3
-1=-1 CHECK

3-2(-1)=2(3)
3+2=6
5=6 NO

This is not a solution.
8 0
2 years ago
Solve xy - 3 = k solve for x
ladessa [460]

Answer:

x=(k+3)/y

Step-by-step explanation

First, we simplify by adding 3 to both sides of the equation

xy-3+3=k+3

Now it's xy=k+3

To get x we divide both sides by y

So x=(k+3)/y

3 0
3 years ago
Read 2 more answers
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