Help quick PLEASE FFTKUKUDIKSSK

Mathematics

2 answers:

ladessa [460]2 years ago

6 0

He made a mistake in Step 2 the correct answer is
• collect like terms and move them to the right hand side and change it’s sign
• then add the like terms, after you have to isolate the variable therefore you divide and you get your answer

4x - 4 > 20
4x > 20 + 4
4x > 24
4x/4 > 24/4
x > 6

Hope this helps!

valentinak56 [21]2 years ago

3 0

4x-4>20

Step 1: Add four to both sides
4x-4+4>20+4
4x>24
Step 2: Divide both sides by 4
4x divided by 4 and 24 divided by 4
Answer: x>6
Kahal accidentally subtracted instead of adding. He made a mistake in step 2.

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each time kim pour water from a jug into a glass, exactly 10% of the water remaining in the jug is used. What is the minimum num

Gnoma [55]

The <em><u>correct answer</u></em> is:

At least 7 times.

Explanation:

Since 10% of the water in the jug is removed each time, this means that 100-10=90% of the water remains.

After two times, we would have 0.9(0.9) = 0.81 = 81% of the water; each time she pours, the number of times 0.9 is multiplied by itself changes. This makes this an exponential inequality (it is not an equation, as we want "less than half of the water"):

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