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2 years ago

Hi help me with this pls

Mathematics

1 answer:

Rudiy272 years ago

3 0

$\huge \underline{ \pink{Answer}}$

Refer to the attachments

Attachment (1)

B (1)

Attachment 2

B(2)

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A chemist needs a 20% solution of alcohol. How many liters of 15% solution should be added to 4 liters of 40% solution to get a

lyudmila [28]

Answer:

Step-by-step explanation:

Let's call the liters x. We can write 0.15x + 0.4 * 4 = 0.2 (x + 4). When we solve for x we get x = 16 liters.

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3 years ago

Please help will mark brainly

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3 years ago

Mrs. Robinson, an insurance agent, earns a salary of $4,800 per year plus a 3% commission on her sales. The average price of a p

nekit [7.7K]

Answer:

Required inequality is $4800+183x>8000$ .

Step-by-step explanation:

Given that Mrs. Robinson, an insurance agent, earns a salary of $4,800 per year plus a 3% commission on her sales. The average price of a policy she sells is $6,100. Write an inequality to find how many policies Mrs. Robinson must sell to make an annual income of at least $8,000.

Calculation is given by:

Salary per year = $4,800

Average price of a policy = $6,100.

commission on her sales = 3%

Then commission on $6,100 = 3% of $6,100 = 0.03 ($6,100) = $183

Let number of policies Mrs. Robinson must sell to make an annual income of at least $8,000 = x

then total commission on x policies = 183x

Total income using x policies = 4800+183x

Since she wants to make an annual income of at least $8,000. so we can write inequality as:

$4800+183x>8000$

Hence required inequality is $4800+183x>8000$ .

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3 years ago

Hey can you please help me posted picture of question

liraira [26]

Vertically compressed means multiplying the function by a number between -1 and 1

From the given options only option C contains such an expression in which x² is multiplied with a number between -1 and 1.

Thus,

G(x) = 3/4 x²

So, the correct answer is option C

6 0

3 years ago

Plz help me on this its really hard :(

pickupchik [31]

Answer:

x = 11

Step-by-step explanation:

Equation:

(5x+1) + (12x-8) = 180

You are doing this because both sides on a straight line add up to 180 degrees. The two angles would add up to 180 degrees since they are on the one side of the line.

Simplifying:

(5x+12x) + (1-8) = 180

Add your common variables together; keep in mind that variables are placed before numbers.

Adding:

17x-7 = 180

Process:

To do this, you are going to simply do the opposite operation for the number without the variable on both sides of the equal sign.

17x - 7 = 180

+ 7 + 7

------------------

17x = 187

----- ------

17 17

x = 11

You divided by 17 on both sides because you needed to get the x variable by itself. Hope this helped! :)

3 0

3 years ago

Hi help me with this pls ​

Hi help me with this pls