Answer:
1. The equations are
2. we can use elimination method to solve the problem
3. She has 50 5$ bills and 30 10 $ bills
4. The values of x and y that we found satisfies the two equations which ensures that the solution is correct.
5. Elimination method involves lesser number of steps when compared with graphical method and substitution method.
Explanation:
Number of 5$ bills=x
Number of 10$ bills=y
Total number of bills=80
total amount=$550
Here we have two equations and we can use elimination method to solve the set of equations
(Equation 1)
(Equation 2)
We have to make the coefficient of one variable in both equations same.
Let us make the coefficient of x same.
(Equation 3)
Subtract (3)from (2)
Substitute the value of y in equation (1)
x=50
y=30
Answer:
Answer is in the explanation.
Explanation:
Let's make a system of equations.
5x+10y=550
x+y=80
Now let's use elimination
-5x-5y=-400
5x+10y=550
__________
5y=150
y=30
Then subsitute 30 in for y to find x. This will leave you with x=50. You will have 50 $5 bills and 30 $10 bills. You can check by subsituting x for 50 and y for 30 in both equations to show why it is correct. Eliminating makes it easier to solve the system of equations.
Explanation:
It is either a cell or an atom but I am not sure, sorry
Answer:
A cell is the smallest unit of a living function.
Explanation:
Whether the living thing is made up of one cell or many it is called an organism. Cells are like the building blocks of an organism.
A large area characterized by its climate and the plants and animals that live there is a(n) ______________________.
Answer:
Explanation:
The living parts of an environment are called biotic factor, nonliving are abiotic.
A large area characterized with a certain climate and species is a biome.
and temperature make up what
i think it is rainfall but am not sure...
Tysm ily ;)