Please answer this pleease

Answer:

the mean weight is 22 tonnes

Step-by-step explanation:

mean=total sum/number of numbers you added

in this case the question already gave you the total so just divide right away

mean weight= 330/15 = 22 tonnes

Answer:

1/3

Step-by-step explanation:

17/15-4/5

17/15-4*3/5*3

17/15-12/15

17-12/15

5/15

1/3

The equivalent value of the fraction is A = 1/3

Given data ,

Let the equation be represented as A

Now , the value of A is

Let the first fraction be p

Let the second fraction be q

Now , A = p - q

when the value of p = 17/15

And , when the value of q = 4/5

On simplifying the equation , we get

A = 17/15 - 4/5

So , the left hand side of the equation is equated to the right hand side by the value of ( 17/15 - 4/5 )

A = ( 17/15 - 4/5 )

Taking the LCM of the denominators of the fraction , we get

A = ( 17 - 12 ) / 15

On simplifying , we get

A = 5/15

A = 1/3

Therefore , the value of A = 1/3

Hence , the fraction is A = 1/3

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Step-by-step explanation:

A is the correct answer.

Answer:

2

Step-by-step explanation:

9514 1404 393

Answer:

  -3/2

Step-by-step explanation:

The line crosses grid intersections at (-1, 2), (1, -1) and (3, -4). These points are separated by 2 units horizontally and 3 units vertically.

The rise (vertical change) is -3 for each run (horizontal change) of +2, so the ratio rise/run is -3/2. That is the slope of the line: -3/2.

Answer:

40+10=50

40+-15=25

40+-30=10

40+-40=0

40+-50=-10

20+-25=-5

Step-by-step explanation:

in this order

Answer:

40+10=50

40+-15=25

40+-30=10

40+-40=0

40+-50=-10

20+-25=-5

Step-by-step explanation:

the other guy had it right.

Answer: I don’t understand the question??

Step-by-step explanation: Can you say the question again like the same way the homework does

Answer:

I believe it is A, B, and D.

Step-by-step explanation:

Answer:

3/13 or around 23%

Step-by-step explanation:

Add all the marbles together, than your numerator is the amount of blue marbles.

Answer:

The 95% confidence interval for the population mean is between $140.89 and $159.11.

Step-by-step explanation:

We have that to find our [tex]\alpha[/tex] level, that is the subtraction of 1 by the confidence interval divided by 2. So:

[tex]\alpha = \frac{1-0.95}{2} = 0.025[/tex]

Now, we have to find z in the Ztable as such z has a pvalue of [tex]1-\alpha[/tex].

So it is z with a pvalue of [tex]1-0.025 = 0.975[/tex], so [tex]z = 1.96[/tex]

Now, find the margin of error M as such

[tex]M = z*\frac{\sigma}{\sqrt{n}}[/tex]

In which [tex]\sigma[/tex] is the standard deviation of the population and n is the size of the sample.

[tex]M = 1.96\frac{36}{\sqrt{150}} = 9.11[/tex]

The lower end of the interval is the sample mean subtracted by M. So it is 150 - 9.11 = $140.89

The upper end of the interval is the sample mean added to M. So it is 150 + 9.11 = $159.11

The 95% confidence interval for the population mean is between $140.89 and $159.11.

Step-by-step explanation:

[tex] \sqrt[12]{1248} = 1.811414676[/tex]

Answer:

$4

Step-by-step explanation:

40/10 = 4

Answer:

-2/n=1/21-5/7

-2/n= -2/3

cross multiple

-2×3=n×-2

-6/-2=-2n/-2

n=3

Answer:

Gallons of punch used = 4.94 gallons

Step-by-step explanation:

Given that:

Liters of punch purchased = 25 liters

Liters of punch left over = 6 liters

Liters of punch used = 25 - 6 = 19 liters

According to the given statement;

1 liter = 0.26 gallons

19 liters = 0.26*19 gallons

19 liters = 4.94 gallons

Hence,

Gallons of punch used = 4.94 gallons

Answer:

Step-by-step explanation:

If may buys an item that, after 10% sale, costs 18 dollars

let x be original price

discount is 10%x=0.10 x

x- 0.10x=18

0.90x=18

x=18/0.90=20

x=20

Answer:

0.430

Step-by-step explanation:

Answer:

=1

Step-by-step explanation:

multiply the numerator and denominator by common integer  

Answer:

p – 7 = -12

The answer

P = 7

8p - 16 = 40

40 + 16 = 56

8p = 56

56 ÷ 8 = 7

Answer:

Betty is right???

Step-by-step explanation:

Answer:

49/11 I think I'm not sure

Answer:

y=2x+0

Step-by-step explanation:

y=mx+b

y=(slope)x+(y-intercept)

y=2x+0

Answer:

y = 2x

Step-by-step explanation:

y = mx + b

m = slope

b = y intercept

y = 2x + 0

Therefore, the equation is y = 2x.

Answer:

The shadow is 3 ft tall

Step-by-step explanation:

The older giraffe is 16 ft tall and 8 is half of 16 and 8ft is the length of the shadow so that means that half of the small girafe would be 3ft because half of 6 is 3.

Sorry if its not correct

Answer:

D

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

A point has no length or thickness.

ALL OF THE ABOVE

Answer:

8 × 6.98

Step-by-step explanation:

..............

Answer:

115°

Step-by-step explanation:

its in the middle of 60° and 70°

Answer:

Circumference of the circle 2π(radius)=6π ft

Therefore, radius=3 ft

Area=π(radius)²=π×3²=9π ft²

9π ft² is the right answer.

The area of circle is 9π square feet.

Area is the amount of area occupied by an object's flat (2-D) surface or shape.

The circumference of circle = 2πr

6 = 2πr

r = 3π

And the area of circle is πr².

The area of the circle = 9π

Therefore, the area of the circle is 9π square feet.

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Answer:

it's answer is C. .80

Step-by-step explanation:

With reference angle A

base (b) = 8

Hypotenuse (h) = 10

Now

Cosine A

= b / h

= 8 / 10

= 0.8

It is A as the answer

Step-by-step explanation:

1.multiply 8×10

2.multiply 80 ×6

3.the answer will be over 100 so it has to be A

Answer:

0

Step-by-step explanation:

0