Walter wants computer software that cost $129. he has $57 saved. if he saves a maximum of $15 a week, the following inequality can be used to find how many weeks it will take walter to save enough money to buy the software. 15x + 57 _> 129 (btw that’s an equal to symbol under it lol) a. x_> 4.8 b. x_< 4.8 c. x_> 12.4 d. x_< 12.4

In this question, it is given that

Walter wants computer software that cost $129. He has $57 saved.

he saves a maximum of $15 a week, the following inequality can be used to find how many weeks it will take Walter to save enough money to buy the software.

And we have to solve this inequality for x.

First we subtract 57 to both sides. And on doing so , we will get

Dividing both sides by 15.

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Correct option is A.

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1