Kyle asks his friend Jane to guess his age and his grandmother’s age. Kyle says his grandmother is not more than 80 years

10 answers
Question:

Kyle asks his friend Jane to guess his age and his grandmother’s age. Kyle says his grandmother is not more than 80 years old. He says his grandmother’s age is, at most, 3 years less than 3 times his own age. Jane writes this system of inequalities to represent k, Kyle’s age, and g, Kyle’s grandmother’s age. Inequality 1: g > 80 Inequality 2: g ≤ 3k – 3 Which inequality did Jane write incorrectly, and how could it be corrected? Inequality 1 is incorrect; it should be g ≤ 80. Inequality 1 is incorrect; it should be g ≥ 80. Inequality 2 is incorrect; it should be g < 3k – 3. Inequality 2 is incorrect; it should be g ≥ 3k – 3.

Answers

#1 is incorrect. The first equation says that his grandmother is not more than 80 years old. If you confine yourself to whole numbers, then she could be 80 but not more. That inequality should be written as g < 81 or if you are a purist, g≤ 80. 

The second equation is correct. At the very most her age is equal to 3k - 3 so at most it would be written as g = 3k - 3.

Since it is not that much, you would write it as g ≤ 3k - 3

It's 'Inequality 1 is incorrect; it should be g ≤ 80' on edge

LETTER ANSWERR IS A.

Step-by-step explanation:

The answer is A on ed

The correct option is :

Inequality 1 is incorrect; it should be g ≤ 80.

Step-by-step explanation:

Let Kyle's age be = k

Let the grandmother's age be = g

Kyle says his grandmother is not more than 80 years old. This means [tex]g\leq 80[/tex]

He says his grandmother’s age is, at most, 3 years less than 3 times his own age. This means [tex]g\leq 3k-3[/tex]

Jane wrote:

Inequality 1: [tex]g80[/tex]

Inequality 2: [tex]g\leq 3k- 3[/tex]

Jane wrote the 1st inequality wrong. As she has shown that the grandmother's age is greater than 80, which is not.

So, the correct option is :

Inequality 1 is incorrect; it should be g ≤ 80.

The system of inequialities is:

g ≤ 8g ≤  3k-30

Step-by-step explanation:

Hi, we have to write the inequalities using the information given:

k: Kyle’s age

g: Kyle’s grandmother’s age

a-: Kyle´s grandmother is not more than 80 years old.

Not more means less or equal (≤), mathematically speaking:

g ≤ 80

b-: Kyle´s grandmother’s age is, at most, 3 years less than 3 times Kyle´s age.

At most also means less or equal.

g ≤  3k-3

The system of inequalities is:

g ≤ 8 g ≤  3k-30

Feel free to ask for more if it´s necessary or if you did not understand something.

I would say it would look something like this: 3k - 3 = g? That would be my best guess. I hope I helped & I'm so sorry if I'm wrong!

Inequality 1 is correct; it should be g<80.

Inequality 1 is incorrect. It should be g is less than it equal to 80. It is less than because she is not more than and equal to because 80 is still included

Less than or equal to 80 yrs old hope this helps!

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