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2 years ago

3x + 2y= 12 y = = x – 9 how do i solve this for substitution??

Mathematics

1 answer:

iren2701 [21]2 years ago

4 0

In Point form: (6,-3)

In Equation form: x = 6, y = -3

Step-By-Step:

Solve for the first variable in one of the equations, then subsititute the result into the other equation

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Stocks are units of ownership in a company. The stock market is a place where stocks are bought and sold. When you buy a stock,

SIZIF [17.4K]

The absolute value is three.
Think of it like this. Whenever the absolute value is there, the number or expression inside, whether negative or positive takes a shower. When they are done showering, they are clean. The clean equals positive, all numbers after absolute value are positive so the answer is three.

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2 years ago

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PLEASE HELP Complete the table with the number of sit-ups you have to do sunday so that the mean number of sit-ups per day is 10

klemol [59]

The complete table will be:

$Monday - 100\\ Tuesday-65\\ Wednesday- 120\\ Thursday-150\\ Friday-90\\ Saturday- 0\\ Sunday-175$

Explanation

Suppose, the number of sit-ups in Sunday is $x$

Mean is the simple average of some numbers. For finding the mean number of sit-ups per day, we need to divide the 'total number of sit-ups' by the 'total number of days'.

Here the total number of days is 7 and the total number of sit-ups for 7 days $= 100+65+120+150+90+0+x= 525+x$

Given that, the mean number of sit-ups per day is 100. So, the equation will be...

$\frac{525+x}{7}=100\\ \\ 525+x=700\\ \\ x= 700-525=175$

So, the number of sit-ups you have to do Sunday is 175.

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3 years ago

Express 25 minutes as a fraction of 2 hours in its simplest form

Phoenix [80]

1/8 bc If you take 2 hours and divide it by 8 you get 25

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2 years ago

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Papessa [141]

Answer:

Step-by-step explanation:

Is there more information?

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2 years ago

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Write an expression to represent this situation: seven less than the product of four and a number please help me

Studentka2010 [4]

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3 years ago