jonna is 4 years older than her brother. which of the following expressions shows the sum of their ages if b represents jonna's brother's age?
Answers
The expression for the sum of their ages 2b+4.
what is Algebra?
Algebra is a branch of mathematics that deals with symbols and the arithmetic operations across these symbols. These symbols do not have any fixed values and are called variables. In our real-life problems, we often see certain values that keep on changing. But there is a constant need to represent these changing values. Here in algebra, these values are often represented with symbols such as x, y, z, p, or q, and these symbols are called variables. Further, these symbols are manipulated through various arithmetic operations of addition, subtraction, multiplication, and division, with an objective to find the values.
let the age of jonna brother's be b
So, jonna age = b+4
So, sum of their ages be = b+b+4= 2b+4
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Jonna's age = b + 4
Brother's age + Jonna's age = 2b + 4
Answer: 2b + 4
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Answers
Answers
y - 1 = ⁵/₆(x) - ⁵/₆(4)
y - 1 = ⁵/₆x - 3¹/₃
+ 1 + 1
y = ⁵/₆x - 2¹/₃
⁻⁵/₆x + y = ⁵/₆x - ⁵/₆x - 2¹/₃
-6(⁻⁵/₆x + y) = -6(-2¹/₃)
-6(⁻⁵/₆x) - 6(y) = 14
5x - 6y = 14
Y - 1 = 5/6 * (x - 4)
Y - 1 = 5/6 * x - 5/6 * 4
Y - 1 = 5/6 * x - 10/3
Y - 5/6 * x = 1 - 10/3
Y - 5/6 * x = - 7/3 /*6
6 * Y - 5 * x = - 14
The correct result would be 6 * Y - 5 * x = - 14.
y = –x + 5
A.
(2, 7)
B.
(0, 5)
C.
(1, 4)
D.
The system has no solution.
Answers
Answer C
y=3x+1
y=-x+5
==>3x+1=-x+5
==>4x=4
==>x=1 and y=-x+5=-1+5=4
(1,4) is the solution.
Answers
Step-by-step
5225 ÷ 5,5 = 950
Answers
Answer:
1) Linear Pair
2) Adjacent
3) Complmentary
4) Vertical
B. x ≤ 7
C. x ≥ –6
D. x ≥ –7
Answers
Answer: The correct option is (D)
Step-by-step explanation: We are given to find the domain of the following function:
The domain of a function y = f(x) is the set of all possible x-values which will make the function defined or will output real y-values.
That is, for the function (i), the domain will be given by all those values of x for which is real.
Now, the values of y will be real only if the expression under square root is greater than or equal to 0.
Therefore, the domain of function (i) is
Thus, the domain of the given function is
Option (D) is CORRECT.
y = 3 √ ( 6 x + 42 )
6 x + 42 ≥ 0
6 x ≥ - 42
x ≥ - 42 : 6
x ≥ - 7
Answer:
The domain is D ) x ≥ - 7