Answer:
$6
Step-by-step explanation:
let s be the cost of each shirt
20 + 6s = 56
subtract 20 from both sides
6s = 36
divide both sides by 6
s = 6
The cost of each shirt is $6.
We can use substitution to solve for x then substitute the x value back into the original equation to solve for y...
5x + 2y = 7
y = x + 1
Since y = x + 1, we can substitute x + 1 for y in the first equation
5x + 2(x+1) = 7
5x + 2x + 2 = 7
7x + 2 = 7
7x = 5
x = 5/7
Now substitute 5/7 for x in either of the original equations
y = x + 1
y = 5/7 + 1
y = 1 5/7
Solution set is (5/7, 1 5/7)
Answer:
We use a symbol because pi itself is not just a number. It goes on forever and in order to represent this number we use the symbol of pi (π). Or we round it to 3.14.
Step-by-step explanation:
Answer:
d
Step-by-step explanation:
