For this case we have the following system of equations:

From equation 2 we can clear z:

We substitute the values of z in equations 1 and 3:

From here, we obtain a system of two equations with two unknowns, whose graphical solution is given by the intersection of both lines:

Note: See attached image for the graphic solution
We now look for the value of z replacing the found values of the graphic solution:

Therefore, the triple ordered solution is:
Answer:
See attached image
Answer:
The answer is C I believe
Step-by-step explanation:
Answer:
3/5 c + 70 = 1650.
Step-by-step explanation:
If c is the number of calories in the cheeseburger, we can see that the entire number of calories for the meal is 3/5 c + 70 = 1650.
If we want to isolate c, we can subtract both sides by 70.
3/5 c = 1580
All boys =1
all girls = 1
all boys or all girls = 1/2
Answer:
Mary earns interest in one year is $88 .
Step-by-step explanation:
Formula

As given
If Mary deposits $275 in principal at an interest rate of 3.2 percent .
Principle = $275
Rate = 3.2%
Time = 1 year
Putting all the values in the formula


Simple interest = $88
Therefore the Mary earns interest in one year is $88 .