16t
• In mathematics, algebraic equation is the statement of equality of two expressions formulated by applying to a set of variables the algebraic operations, namely, addition, subtraction, multiplication, division, raising to a power, and extraction of a root.
• Algebra is divided into different sub-branches such as elementary algebra, advanced algebra, abstract algebra, linear algebra, and commutative algebra.
• Whatever is on one side of the equal sign must have exactly the same value on the other side else it becomes an inequality.
Algebraic equations are of various types. A few of the algebraic equations are:
• Polynomial Equations
• Quadratic Equations
• Cubic Equations
• Rational polynomial Equations
• Trigonometric Equations
The expression the product of 16 and the time after the start represent the algebraic equation 16t
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Step-by-step explanation:
10x-40+15=-15
10x=-15-15+40
10x=10
x=1
Answer is 1
Answer:
7 km
Step-by-step explanation:
Substitute:
The equation for area of a semi-circle is 
A = 
76.97 = 
Multiply by 2 on both sides:
2(76.97) = (
)2
153.94 = 
Divide by pi on both sides:
153.94 = 
/pi /pi
49.03 ≈ 
Find the square root:

7 = r
Answer:
for Lena
C = 3x C + 5x
for Patrick
C = 9x C = 10x
for total C = 12x + 15x
Step-by-step explanation:
I think it’s is c I’m not sure tho