Answer:
infinite number of solutions
Step-by-step explanation:
Work with the second equation. Subtract 8x from both sides.
- 4y + 8x - 8x = -8x - 12 Collect like terms.
-4y = - 8x - 12 Divide by - 4
-4y/-4 = - 8x/-4 - 12/-4
y = 2x + 3
That is exactly the same line as the first given. There is an infinite number of solutions.
Answer:
He received 19 dollars
Step-by-step explanation:
On Friday he had $22 and now he has $41.
We will need to do the reverse operation of addition, and that will be subtraction.
$41 - $22 = $19
Answer: 78
Step-by-step explanation:
The formula use to find the sample size is given by :-
Given : Margin of error : 
Standard deviation : 
Significance level : 
Critical value : 
The formula use to find the sample size is given by :-
Answer:
u is the dependent variable.
g is the independent variable.
Step-by-step explanation:
In the given equation
g = 748u
where g is the total number of gallons of water used and u is the number of units. Recall that the city converts the number of gallons used into units
In the relationship, the number of gallons used can be determined by measurement. This is not dependent on any factor as such g is an independent variable. u may then be derived using the equation given by substituting the measured value of g into the equation as such u is dependent on the value of g as the other element in the equation is a constant.
Answer:
B the set of all natural numbers and the ser of all
