Answer:
Step-by-step explanation:
-4 - 7 + 10x = -7 + 6x...combine like terms
10x - 11 = 6x - 7
10x - 6x = -7 + 11
4x = 4
x = 4/4
x = 1.........ONE SOLUTION
Equation- l=65-15d
graph- discrete bc it's only for integer numbers
Its c.
If you will substitute those numbers to the pair of equations, both will be true.
1=-3+4
1=3-2
Note that, if we let integer = x, x would be:
x > -8
x then, can be any integer -9 and less
-9 is one of your answers
hope this helps
Answer:
15
Step-by-step explanation:
Depth of well = No. of turns × length of one turn
Given: Depth of well = 9.89m = 989cm [1m = 100cm]
Let number of turns be x
Length of one turn = 2πr or π×diameter
Now , 989=x×π×21
989=x×(22/7)×21
x=989×7/(22×21)
x=14.98 ≈15 turns
[Number of turn never be in decimals]
Hence number of 15 complete turns of the handle required to bring up the bucket