The two numbers are 7 and 4
Let the first number = x
let the second number = y
The sum of the numbers is 11, in algebra form x + y = 11
The difference of the two numbers is 3, in algebra form, x - y = 3
To obtain the two unknown numbers, we solve the two equations;
from the first equation, x = 11 - y
substitute the value of x into the last equation;
(11 - y) - y = 3
11 - y - y = 3
11 - 2y = 3
2y = 11 - 3
2y = 8
y = 4
The value of x = 11 - 4 = 7
Thus, the two numbers are 7 and 4
Learn more here: brainly.com/question/16889590
We have been given the steps to solve the equation as
Step 1: 2x = 18
Step 2: x = 18 − 2
Step 3: x = 16
There is an error in step 2.
x is in multiplication with 2. So in order to get rid of 2 from the left hand side, we perform opposite operation of multiplication i.e. division.
So we must divide both sides by 2.
Therefore, A is the correct option.
A) She did not divide 18 by 2.
65 i think
The given table is
From the given table it is clear that the value of y increases by 10 when the value of x increases by 5. It means the rate of change is constant.
So, the given table represents a linear relationship.
If a linear function passes through the two points then the equation of line is
The linear function passes through (5,10) and (10,20), so the equation of line is
It means it passes through the origin, i.e., (0,0).
Ming has described a proportional relationship because the ordered pairs are linear and the line passes through the origin.
Therefore, the correct option is A.