They got 3 cups each because nadia+7 make 8 ppl and theres 24 cups in total that we know of so 24÷3=8
For #6
x + y = -10
x - y = 2
First solve for y in one of the equations
x - y = 2
-y = 2 - x
y = -2 + x
y = x - 2
Now substitute into one of the equations and solve for x
x + y = -10
x + x - 2 = -10
2x - 2 = -10
2x = -8
x = -4
Answer:
Exactly one
Step-by-step explanation:
Answer:
$3584.86 or 3600 if rounded to the nearest 100 dollars
Step-by-step explanation:
1800(1.047)^15= 3584.86
you can plug this into a calculator
Answer:

Step-by-step explanation:
Let
x ----> the number of minutes
y ----> the total charge in dollars
we know that
For x>700 min

so
For y=48.10
substitute

Multiply by 100 both sides
----> equation without decimals
solve for x

To find out the total minutes we need to sum
