Explanation:
When you put the solution values into each equation, the equation becomes a true statement. If all equations become true statements, the point is a solution to the system.
_____
For example, consider the system of equations ...
The point (x, y) = (5, 1) is proposed as the solution. When we put those values into the equations, we get ...
5 + 1 = 6 . . . . . true
5 - 1 = 4 . . . . . .true
(x, y) = (5, 1) is the solution to this system of equations. (Since it is a system of two independent linear equations in an equal number of unknowns, we know there is only one solution.)
A {-21, 21)
B. {-21.-7. 7. 21)
C: {-14, 0.14)
D. {-21, -14, -7)
Answer:
B. {-21.-7. 7. 21)
Step-by-step explanation:
The set made up of odd numbers and multiples of 7 is given as;
{-21.-7. 7. 21)
Multiples of 7 are usually those numbers where 7 is factor.
Odd numbers are numbers that cannot be divide by 2.
So, the most fitting answer is B.
at the grocery store. Of this amount, she spent
$27
on fruit. What percentage of the total did she spend on fruit?
7.7278
7.73
0.1
Answer:
Option 2nd is correct
p = 7.7278 g/ml
Step-by-step explanation:
Formula for the density is given by:
.....[1]
where,
p is the density
m is the mass
v is the volume
As per the statement:
If a substance has a mass of 27.82 grams and a volume of 3.6 ml
⇒ and
Substitute in [1] we get;
Therefore, the most accurate density of the substance in g/ml is, 7.7278