6 blue slabs have a mean weight of 7 kg. 3 yellow slabs have a mean weight of 5 kg. 1 grey slab has a mean weight of 9kg. work out the mean of 10 slabs

Answer: $658.14

Step-by-step explanation:

Answer:

30

Step-by-step explanation:

ita directly proportional so its 30.

this is because 20 times 2 is 40 and 15 times 2 is 30

Answer:

9 months

Step-by-step explanation:

got it right

Answer:

x=0

Step-by-step explanation:

x+x-x=x-x

Answer:

x=0...........................................

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a )

[tex]angle \: 4 = 62°[/tex]

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b )

[tex]8x + 6 = 62[/tex]

Subtract sides 6

[tex]8x + 6 - 6 = 62 - 6[/tex]

[tex]8x = 56[/tex]

Divide sides by 8

[tex] \frac{8x}{8} = \frac{56}{8} \\ [/tex]

[tex]x = 7[/tex]

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Answer:

4 = 15.5 degrees

Explanation:

180 degrees - 118 degrees = 62 degrees

62/4= 15.5 degrees

Answer:

x = 7 degrees

Explanation:

8x+6=62  

62-6=56

8x=56

x=7

Answer:

because AC and BD bis => AX = XC; BX = XD

ΔAXD ≅ ΔCXB (SAS) because: AX = CX

                                                    DX = BX

                                                    m∠AXD = m∠BXC ( 2 opposing angles)

because ΔAXD ≅ ΔCXB (SAS)

=> AD = BC and m∠DAX = m∠BCX

because m∠DAX = m∠BCX => AD//BC

ABCD has AD = BC and AD//BC => ABCD is a parallelogram

Step-by-step explanation:

Answer:

UNDEFINED

Step-by-step explanation:

change in y over the change in x is how you'd find slope, however, x is the same in both of these, making this a limitation not an equation, therefore the slope is undefined 18-18 = 0 -> Anything divided by zero as a slope is undefined.

Answer:

-12

Step-by-step explanation:

The slope formula is y2-y1 divided by x2-x1

I plugged it in and got

-12

Answer:

C)  y = 10/3x - 5

Step-by-step explanation:

Slope intercept equation is y = mx + b:

    m is the slope

    b is y-intercept

When you read slope you can also read it as rise over run. Rise is move up or down on the y axis depending if number is negative or positive. Run is move left or right on x axis depending if number is negative or positive.

Example: y = [tex]\frac{10}{3} x - 5[/tex]

Start at the y-intercept which is -5. On graph you can see the line crosses the y axis at (0, -5). From this point rise 10 then run 3 you'll end up at point (3, 5). Connect the dots of the two points and you'll see a line like the one in the problem.

Answer:

x < -8

Step-by-step explanation:

3 - (2x - 5) < -4 (x+2)

distribute

3 - 2x + 5 < -4x - 8

add the numbers

8 - 2x < -4x - 8

move the x

2x < -16

divide

x < -8

Answer:

Step-by-step explanation:

1) y = 5x

x      y

2     10

3      15

7       5 * 7 = 35

1       5 * 1  =  5

2) a = 4b

a               b

12             3

20            5

4*10=40   10

1                 1/4

3) m = n + 2

m                n

5                  3

10                 8

20                18

1                    -1

Answer: (5p+12)(5p-12)

Step-by-step explanation:

Factor 25p2−144

25p2−144

=(5p+12)(5p−12)

Answer:

(5p+12)(5p−12)

To check:

(5p+12)(5p−12)

=(5p+12)(5p+−12)

=(5p)(5p) +(5p)(−12)+(12)(5p)+(12)(−12)

=25p2−60p+60p−144

=25p2−144

Answer:

A. 160 Out of 40 is 400%./// B. The answer is 25/// C.  The answer is 3905%

Step-by-step explanation:

( A )  One step solution:

You can easily find the answer in one step, just multiplying the part by 100 then dividing the result by the percentage.

So, 160 is 40% of =  160 X 100     = 400

                                        40

( B ) The same thing as A but the numbers are switched

       One step solution:

You can easily find the answer in one step, just multiplying the part by 100 then dividing the result by the percentage.

So, 40 is 160% of = 40 × 100      = 25

                                          160

( C ) Working out a percentage increase or decrease between two numbers is pretty simple. The resulting number (the second input) is 1602 and what we need to do first is subtract the old number, 40, from it:

1602 - 40 = 1562

Once we've done that we need to divide the result, 1562, by the original number, 40. We do this because we need to compare the difference between the new number and the original:

1562      = 39.05          

40

We now have our answer in decimal format. How do we get this into percentage format? Multiply 39.05 by 100?

39.05 x 100 = 3905%

160 is percentage of 40,  40 is 160% , number is 40% of 1602​ are 64 , 64 and 640.8 respectively.

A ratio or value that may be stated as a fraction of 100 is called a percentage. And it is represented by the symbol '%'.

Problem A,

40% of 160 = 160 x 40 / 100

                  = 64

Problem B,

160% of 40 = 160 x 40 / 100

                  = 64

Problem C,

40% of 1602 = 1602 x 40 / 100

                     = 640.8

Therefore, 160 is percentage of 40,  40 is 160% , number is 40% of 1602​ are 64 , 64 and 640.8 respectively.

To learn more about the percentage;

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Answer:

D

Step-by-step explanation:

for A if you subtract 3 from both sides and divide by 10 from both you get x = 0 so that has infinate solutions

for B you add 8 to both sides and divide by 16 getting the same thiong as A

For C you ditribut 4 to 2x and -3 getting 8x-12=8x-12 if you solve it you get the answer as A & B

For D if you subtract 12 from one side you get -6x = -6x -12 (-12)

causing you not to be able to solve it

Answer:

R=50 degrees

Step-by-step explanation:

All of the angle measures together are 180 degrees. You need to make an equation in order to solve this problem:

180= (3x+5) + (11x-1) + (5x+5)

You then combine like terms:

180= (3x+11x+5x) + (5-1+5)

180= 19x+9

Then, subtract 9 from 180:

171= 19x

Then, divide 171 by 19:

9= x

Finally, you plug the value of x into the equation representing angle R:

5 x 9 + 5

45 + 5

50

Answer:

1.33

Step-by-step explanation:

2 1/2=2.5

1 7/8=1.87

=1.33

Answer:

25

Step-by-step explanation:

Answer:

1.) Right

2.)Acute

3.) obtuse

Step-by-step explanation:

Answer:

1.right

2.acute

3.obtuse

Answer:

Your answer would be 6, -4, and 3

Step-by-step explanation:

The roots of the original polynomial equation are 6, -4 and 3

The polynomial equation is given as:

P(x) = (x - 6)(x + 4)(x - 3)

Set the polynomial to 0

(x - 6)(x + 4)(x - 3) = 0

Split the equation

(x - 6) = 0, (x + 4) = 0 and (x - 3) = 0

Solve for x in each split

x = 6, x = -4 and x = 3

Hence, the roots of the original polynomial equation are 6, -4 and 3

Read more about polynomial equation at:

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Answer: 1,200 dollars

Step-by-step explanation:

We know that the cost before the discount is 6,000.

The discount price is 80% off.

So, subtract 4,800 by 6,000 because 80% of 6,000 is 4,800.

Now, we have to add the two zeros. We get 1200.

It is the answer to the question.

Answer:

6x+20

Step-by-step explanation:

7x+13= (-6x+12) + (5x-5) + y

7x+13= -1x+ 7 + y

6x+20=y

I hope im right!

Answer:

y=30

Step-by-step explanation:

Answer:

Step-by-step explanation:

Slope intercept form is found by [ y = mx + b ] where m = slope and b = y-intercept. We are given that a salesperson gets $40000 as a base salary. Since this value doesn't change it is the starting value, in other words the y-intercept. The salesperson also gets $3000 for every subscription they sell. Since this amount grows at a constant rate, that is the slope. Now, we can write the slope intercept form of [ y = 3000x + 40000 ].

Best of Luck!

Answer:

1. y = 3000x + 40000

2. Option A: base salary of the salesperson

3. Option A: the commission per subscription

Step-by-step explanation:

1. The commission of $3000 will be the first number, then will come the salary. Now, since it has to be in slope form, it is on the y-intercept, so we write y.

2. It is the base salary because it is the only number that does not have a missing value, 3000x does.

3. The commission per subscription is the answer because the context of the whole slope is the commission per subscription. Question 2 was the y-intercept.

Answer:

6 to the power of 10

Step-by-step explanation:

Since there are parenthesis, you multiply the exponents instead of adding. 5*2=10

Answer:

3/4

Step-by-step explanation:

(17,-7) And (13,-4).  First take -4 and subtract it from-7.  When you do that you get 3.  Then Subtract 13-17.  You get 4.  Write 3 and 4 as a fraction.  3/4.  The 3 is the x-value and the 4 is the y value. So 3/4 is your slope

Answer:

what?

Step-by-step explanation: