Simon makes 5 towers of 10 blocks each. Ron makes 6 towers of 10 blocks each.
How many blocks did they use?

Simon used 50 blocks

Ron used 60 blocks

Together, they used 110 blocks.

Here is the question as an equation-

(5x10)+(6x10)=

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5