3 years ago

How old is Neil if 200 reduced by 2 times his age is 144?

Mathematics

1 answer:

Dmitry [639]3 years ago

8 0

200-144=56
56/2=28
Neil is 28

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velikii [3]

Simplified answer is 4+8i

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4 years ago

3(x – 5) = 2(x – 5) + x solve for x and number of soultions

ArbitrLikvidat [17]

Answer:

Step-by-step explanation

3x-15=2x-10+x

3x-15=3x-10

in this step, problem happens

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3 years ago

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Helppp can someone solve this please

Norma-Jean [14]

Answer:

$\displaystyle x=-15$

Step-by-step explanation:

<u>Solution Of A System Of Equations </u>

A system of linear equations is given as

$\displaystyle \left\{\begin{matrix}ax+by=c\\ dx+ey=f\end{matrix}\right.$

There are many methods to solve them. We will use the method of reduction

The given system is

$\displaystyle \left\{\begin{matrix}2x+3y=45\\ x+y=10\end{matrix}\right.$

Multiplying the second equation by -3

$\displaystyle \left\{\begin{matrix}2x+3y=45\\ -3x-3y=-30\end{matrix}\right.$

Adding the resulting equations

$\displaystyle -x=15$

$\displaystyle x=-15$

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3 years ago

For the function f(x)=(x+6)^3, rind f^-1(x)

qaws [65]

Answer:

$f^{-1}(x)=\sqrt[3]{x}-6$

Step-by-step explanation:

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$y=(x+6)^3$

$x=(y+6)^3$

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$\sqrt[3]{x}-6=y$

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3 years ago

Factor the expression.

valentinak56 [21]

It is (d+5)(d+5) because 5•5 is 25 and 5+5 is 10

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