Answer:
15x3y.
Step-by-step explanation:
.
The present age of the mother is 30 years.
<u>Step-by-step explanation</u>:
Step 1 :
At present,
- Age of Jane = x
- Age of Billy = 5x
- Age of mother = 3(5x) = 15x
Step 3 :
After 2 years,
- Age of Jane = x+2
- Age of mother = 8 times as Jane = 8(x+2)
Step 3 :
Age of mother at present + 2 years = Age of mother after 2 years
⇒ 15x + 2 = 8(x+2)
⇒ 15x + 2 = 8x + 16
⇒ 7x = 14
⇒ x = 2
Step 4 :
Substitute x=2,
Age of mother at present = 15x = 30 years.
The factors of 100 are . . .
1, 2, 4, 5, 10, 20, 25, 50, and 100 .
Answer:
B
Step-by-step explanation:
To solve for x, we have to get x by itself. To do this, perform the opposite of what is being done to the equation.
5x+14=k
First, subtract 14 from both sides, because 14 is being added on to 5x. Subtraction is the opposite of addition.
5x+14-14=k-14
5x=k-14
Now, divide both sides by 5, because 5 and x are being multiplied. Division is the opposite of multiplication.
5x/5=k-14/5
x=k-14/5
So, the correct answer is choice B
Answer: e. Função afim (Affine function)
Step-by-step explanation:
The question in english is a follows:
The function that is represented in a graph as a straight line is known as:
a.Exponential function
b. Quadratic function
c. Logarithmic function
d. Delta function
e. Affine function
So, the correct answer is option e, an affine function. Why?
Because an <u>affine function</u> is a polynomial function of the first degree that does not pass through the origin of coordinates in the cartesian plane, that is, through the point (0,0) when is graphed.
In fact an affine function is graphed as a straight line, because is a linear funcition in the form:
Where 
(the slope) and 
(the interception with y axis) are different from 0.
