The picture is the question, i need help, plz help!

Answers

Answer 1

Answer:
-- According to the table, he earns $270 for 6 days' work. If you divide
$270 by 6, you find that for 6 days' work, he earns $45 per day.

-- According to the table, he earns $360 for 8 days' work. If you divide
$360 by 8, you find that for 8 days' work, he earns $45 per day.

-- According to the table, he earns $540 for 12 days' work. If you divide
$540 by 12, you find that for 12 days' work, he earns $45 per day.

-- Apparently, it doesn't matter how many days he works. He always
earns $45 for each day.

Does that help you finish the problem on your own ?

Answer 2

Answer: You can set up a proportion to solve it.
6 15
------ = ------
270 x

270*15=4050
4050/6=675.

So the answer is B.
If you do not understand pls tell me.

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Solve for x. Express the answer in simplest form. 2/1= 8x-2/9
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Subtract 3 from 4/9 of 20

What is the inverse of the function f(x) = x - 9?

Answers

The inverse of the given function is f⁻¹(x) = x + 9. The correct option is a f⁻¹(x) = x + 9

From the question, the given function is

f(x) = x - 9

To determine the inverse of this function,

First, let y = f(x)

That is,

y = x - 9

Now, make x the subject of the equation

To do that, add 9 to both sides

We get

y +9 = x - 9 +9

y + 9 = x

∴ x = y + 9

Now, rewrite as f⁻¹(x) by replacing y by x

That is,

f⁻¹(x) = x + 9

Hence, the inverse of the given function is f⁻¹(x) = x + 9. The correct option is a f⁻¹(x) = x + 9

Learn more here: brainly.com/question/16149814

Answer:

F^-1(x) = x+9

Step-by-step explanation:

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An ice cream shop's goal is to sell a mean of 45 ice cream cones per day. In one week, it sold the following numbers of ice cream cones each day.54, 45, 33, 39, 48, 40, 41

How many more ice cream cones would it have had to sell during the week to meet its goal?

A. 15
B. 25
C. 35
D. 5

Answers

To achieve its goal, it needed to sell at least a total of 45*7 = 315 cones each week. but it only sold 54+45+33+39+48+40+41= 300 cones.
therefore it needs 315 - 300 = 15 more cones to meet its goal.

Answer:

15 !

Step-by-step explanation:

What is the value of a in the equation 3a + b = 54, when b = 9?

Answers

If you would like to solve the equation 3 * a + b = 54, when b = 9, you can calculate this using the following steps:

b = 9
3 * a + b = 54
3 * a + 9 = 54
3 * a = 54 - 9
3 * a = 45 /3
a = 45/3
a = 15

The correct result would be 15.

$3a+b=54\n\n Substitute\ b\ =\ 9\ into\ the\ equation.\n\n3a+(9)=54\n\nSubtract\ 9\ on\ both\ sides.\n\n3a=45\n\nDivide\ by\ 3\ on\ both\ sides.\n\n{\boxed{a=15}$

An experienced carpenter can frame a house twice as fast as an apprentice. Working together, it takes the carpenters 2 days. How long would it take the apprentice working alone?

Answers

We are required to calculate the number of days it would take the apprentice working alone

The number of days it takes the apprentice working alone is 6 days

let

Number of days taken for the carpenter to work alone = x

Number of days taken by the apprentice to work alone = 2x

Number of days taken to work together = 2 days

Work done per day Carpenter = 1/x

work done per day apprentice = 1/2x

work done per day together = 1/2

So,

work done per day together = Work done per day Carpenter + work done per day apprentice

1/2 = 1/x + 1/2x

1/2 = (2 + 1) / 2x

1/2 = 3/2x

cross product

1(2x) = 2(3)

2x = 6

x = 6/2

x = 3 days

Therefore,

Number of days taken by the apprentice to work alone = 2x

= 2(3)

= 6 days

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Answer:

6 days

Step-by-step explanation:

Let the time taken by Carpenter working alone = $C$ days

Then time taken by apprentice alone = Twice as that of taken by Carpenter = 2 $C$ days

Time taken working together = 2 days

Work done in one day working together = $(1)/(2)$

Work done in one day by Carpenter working alone = $(1)/(C)$

Work done in one day by apprentice working alone = $(1)/(2C)$

Work done in one day by Carpenter working alone + Work done in one day by Carpenter working alone = $(1)/(C)$ + $(1)/(2C)$ = Work done in one day working together = $(1)/(2)$

$(1)/(C)+(1)/(2C)=(1)/(2)\n\Rightarrow (2+1)/(2C)=(1)/(2)\n\Rightarrow C = 3\ days$

Time taken by Carpenter alone to complete the work = 3 days

Time taken by Apprentice alone to complete the work = 3 $*$ 2= 6 days

Find the product of the complex number and its conjugate. 3 + 3i

Answers

First, we are going to find the conjugate of our complex number. Remember that to find the conjugate of a complex number we just need to keep the real part and change the sing of the imaginary part.

We can infer from our problem that the real part of our complex number is 3 and its imaginary part is $3i$ . We are going to keep the real part 3 and change the imaginary part from positive to negative, so our conjugate is $3-3i$ .

Next, we are gong to multiply both the complex number and its conjugate using the distributive property:

$(3+3i)(3-3i)=(3*3)-(3*3i)+(3*3i)-(3i*3i)=9-9i+9i-9i^2=9-9i^2$

Remember that $i^2=√(-1)^(2) =-1$ , so:

$9-9i^2=9-9(-1)=9+9=18$

We can conclude that the product of the multiplication of the complex number 3+3i and its conjugate, 3-3i, is 18.

Product of complex number and its conjugate will be 18 .

Complex number : x ± iy

Given , 3 + 3i

Conjugate pair of complex number = x ± iy

So, the complex conjugate pair are :

3 + 3i and 3 - 3i

Product of complex conjugate pair,

(3 + 3i) (3 - 3i)

Open the brackets,

= 9 - 9i + 9i - 9i²

Here, i = √-1 ; i² = -1

Substitute the value of iota(i),

= 9 -9i + 9i +9

= 18

Thus the product value is 18.

Know more about complex numbers,

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The length of the base of a right-angled triangle ABC is 6 centimeters and the length of the hypotenuse is 10 centimeters. Find the area of the triangle.

Answers

Answer:

Step-by-step explanation:

Ok, so we see that we have 6 as a leg of the right triangle and 10 as the hypotenuse. As we look closer, we can tell that this makes the Pythagorean triple 6, 8, 10. 6, 8, 10 is just the Pythagorean triple 3, 4, 5 but it is multiplied by 2. So now that we know both the legs of this right triangle, we can use the area of a triangle formula (bh)/2. 6*8=48 and 48/2 = 24 which gives us our answer.

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