Answer:
The value is
Step-by-step explanation:
From the question we are told that

And that

So the number of sand grain that is in
is mathematically evaluated as
=>
Answer:
Step-by-step explanation:
4x − 1 = 19
solving for x, x = 5
2x − 4 = 10
x=7
2x + 2y = 48
x=24-7
y=24-x
5x + 2y = 90
x=18-2y/5
y=45-5x/2
all the situations I could find hope this helps for each equation.
Answer:
x = - 8, y = 2
Step-by-step explanation:

Answer:
much thinner
Step-by-step explanation:
#first
Answer:
(1,-1)
Step-by-step explanation:
y < 4x+5
x = 1, y = -1 => -1 < -4+5 (T)