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harkovskaia [24]
2 years ago
6

Solve for x x^3 = - 125

Mathematics
1 answer:
Inga [223]2 years ago
6 0
X^3=-125
Cubic root for both side to get,
x=-5. Hope it help!
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When solving a literal equation, what is the trick for isolating a variable that appears more than once?
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Literal equations, simply put, are equations containing two or more variables. Your goal is to solve for just one variable with respect to others. If you know how to solve regular equations, then I guarantee you that solving literal equations will be a breeze.

The "heart" of literal equation is to isolate or keep by itself a certain variable on one side of the equation (either left or right) and the rest on the opposite side. 

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Find an equivalent percent for 7/10
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So, you know that any number with 100 as the denominator will be a fraction. All you have to do is change the 10 you have now to 100. To do that, you have to multiply BOTH numerator and denominator (top and bottom) by 10. That results in 70/100, which is equal to 70%.
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Simplify<br> -5(2x+4)-3(x-6)
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x=6

Step-by-step explanation:

1 Add 44 to both sides.

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3 Divide both sides by 22.

x=\frac{12}{2}x=

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Five times my age 4 years ago is the same as 3 times my age in 2 years." How old is Elmo now?
zheka24 [161]

Answer:

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A student has 10 coins in her pocket that have a value of $0.85. The coins are either
il63 [147K]

Answer:

\left\{\begin{matrix}x+y=10\\ 0.05x+0.10y=0.85\end{matrix}\right.

Step-by-step explanation:

<u>System of Equations</u>

Let's call:

x = number of nickels in the student's pocket

y = number of dimes in the student's pocket

Each nickel has a value of $0.05, so x nickels have a value of 0.05x

Each dime has a value of $0.10, so y dimes have a value of 0.10y

The student has a total of 10 coins, thus:

x+y=10

The total value of the coins is $0.85, thus

0.05x+0.10y=0.85

The system of linear equations that represents this scenario is:

\left\{\begin{matrix}x+y=10\\ 0.05x+0.10y=0.85\end{matrix}\right.

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