The value of x is √2.5
<h3>How to solve arithmetic?</h3>
Arithmetic can be solved by using PEMDAS rule.
P = parenthesis
E = exponential
M = Multiplication
D = division
A = addition
S = Subtraction
Therefore,
12 - 4 + 5x² = 20
12 - 4 + 5x² = 20
8 + 5x² = 20
5x² = 20 - 8
5x² = 12
x² = 12 / 5
x = √2.4
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Kelly's regular pay is $10 per hour and overtime pay is $20 per hour.
<h3>What is equation?</h3>
The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign. A mathematical statement known as an equation is made up of two expressions joined together by the equal sign. A formula would be 3x - 5 = 16, for instance. Solving this equation, we get the value of the variable x as x = 7.
Here,
Let her regular pay be x and overtime pay be y.
8x+4y=160
y=x+10
8x+4(x+10)=160
8x+4x+40=160
12x=120
x=10
y=x+10
=10+10
=20
Kelly receives a regular pay rate of $10 and a $20 overtime pay.
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Take Sin of 5 and subtract Cos 2
Sin 5 Cos -2
5-2=3
5x+3=3
√x=3
2x+5y+(1)z=3
Answer:
K, (-3.5,-5), E, (3.5, 3)
Step-by-step explanation:
