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nalin [4]
3 years ago
8

Annie needs $30 to buy a coat she has saved $12 and plans to work as a baby siter to earn $6 per hour which inequality shows the

minimum number of hours, n, that annie should work as a babysitter to earn enough to buy a coat?
a 12 + 6n ≤ 30, so n ≤ 3
b 12 + 6n ≥ 30, so n ≤ 3
c 6n ≥30 + 12, so n ≥ 7
d 6n ≤30 + 12, so n ≤ 7
Mathematics
1 answer:
tekilochka [14]3 years ago
6 0

Answer:

The answer would be B. 12 + 6n is greater than or equal to 30, so n is less than or equal to 3.

explanation:

I'm bad with explaining things, but I'll try my best to explain why this is the right answer.

12 + 6n ≥ 30, so n ≤ 3

let's start with the 12 at the beginning of the inequality, Annie already has $12, so the 12 in the inequality shows the amount of money she already has being added to the $6 per hour of babysitting she needs to do (n).

Now for the + 6n, the plus is there to show that the $12 Annie already has is being added to the 6n. The 6n then represents the $6 Annie makes each hour and the n represents how many hours she needs to babysit in order to get $30. The 6 is being multiplied by the amount of hours she needs to babysit to show how much money Annie would make. Then you add on the $12 she already has.

Annie then needs at least $30, but if she makes more than $30 then she will simply have more money than needed, therefore you use the greater than or equal to sign to show that she can have more money than just $30 after working.

I hope this helps, and sorry if my explanation is hard to understand lol.

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At a fast food burrito restaurant, customers ask servers to add particular ingredients to their burrito. One popular ingredient
Gnesinka [82]

25 ounces of guacamole are still expected to be available from batch.

Step-by-step explanation:

Given,

Quantity of guacamole in one serving = 2.2 ounces

Quantity of guacamole in one batch = 80 ounces

Quantity of guacamole in 25 servings = 2.2*25 = 55 ounces

Guacamole left = Quantity in batch - Quantity of 25 servings

Guacamole left = 80-55 = 25\ ounces\\

25 ounces of guacamole are still expected to be available from batch.

Keywords: multiplication, subtraction

Learn more about subtraction at:

  • brainly.com/question/1234767
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#LearnwithBrainly

5 0
3 years ago
What is 6(-5n + 7) simplified?
MrRa [10]

Answer:

-30n+42

Step-by-step explanation:

Hope fully this is helpful

3 0
2 years ago
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25% of what number is 9
Alexeev081 [22]
Keep in mind the the word "percent" translates to "for each 100." 25% can be read as "25 for each 100," which has the fractional representation \frac{25}{100} and the decimal representation 0.25. All of these representations are just different ways of writing the same value.

Note too that the fraction \frac{25}{100} can be reduced to \frac{1}{4}, so what the question is really asking is: 1/4 of what number is 9?

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4 0
3 years ago
What is the value of cos(150°)?
baherus [9]

ANSWER

-\frac{\sqrt[]{3}}{2}

EXPLANATION

Given

\begin{gathered} \cos \text{ 150} \\  \end{gathered}

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\begin{gathered} \cos (180-\theta)=-\cos \theta \\ \Rightarrow\cos (180-\theta) \\ =-\cos 30 \end{gathered}

recall that

\begin{gathered} \cos 30=\frac{\sqrt[]{3}}{2} \\  \end{gathered}

Hence,

\begin{gathered} \cos 150=-\cos 30 \\ =-\frac{\sqrt[]{3}}{2} \\  \end{gathered}

Therefore, the value of cos 150 is

-\frac{\sqrt[]{3}}{2}

4 0
1 year ago
Which value of a in the exponential function below would cause the function to shrink? f(x) = a(three-halves) Superscript x Four
Natalka [10]

Answer:

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Step-by-step explanation:

As we know that

By multiplying the function by a constant, we may expand or shrink the function in the y-direction.

Now we have

y=a(b^{x})

if a> 1  > the function would enlarge

if 0< a < 1 > the function would shrinks

Now

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Therefore the second option is correct

5 0
3 years ago
Read 2 more answers
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