Answer:
Elimination (multiplication and subtraction)
There is 1 solution
Step-by-step explanation:
The only way to solve this system of equations is by elimination (multiplication). Let's say that we want to cancel out the x. You multiply the first equation by 5 and you multiply the second equation by 2.
Your equations now are:
10x-5y=55 and 10x+6y=-22
You can subtract these equations to get -11y = 77.
Now that we know that y = -7, we can substitute y in to solve x.
10x-5(-7) = 55
10x=20
x=2
Final answer (2,-7)
The answer would be B, an irrational number
Answer:
6 cm²
Step-by-step explanation:
The shorter sides are base and height.
3 x 4 / 2
= 6
1:500000
it mean:
1cm : 500000 cm
(500000×7) cm = 3500000 cm (real distance between the two towns, in cm)
if
1 Km = 100000 cm
3500000 /100000 = 35 Km (real distance between the two towns, in Km)