The time spent by a teacher on schoolwork during the weekend is normally distributed with a mean of 6 hours and a standard deviation of 1.2 hours.
a) What amount of time do the bottom 20% of teachers work?
b) What amount of time do the top 20% of teachers work?
c) What amount of time do the middle 40% of teachers work?

Answer:

6/10 or 3/5

Step-by-step explanation:

Answer:

=1/2 (2) (1/3)

Step-by-step explanation:You have to find the size of the sides using the intersecting lines and then multiply L*W

Answer:

1/2 (2) 1/3

Step-by-step explanation:

trust me broo

Answer:

7 4 9

5 6 1

3 2 8

Step-by-step explanation:

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

Answer:

7 4 9

5 6 1

3 2 8

Hope this helps!

Answer:

Look at the image.

Step-by-step explanation:

C = 2πr

2 · π · 5

≈ 31.42

31.42 ÷ 4 = 7.855

Answer: $700

Step-by-step explanation:

The store is selling at 30% off.

If a mattress is $1,000, first find out what 30% of $1,000 is:

= 1,000 * 30%

= $300

The store is selling 30% off, this means that they are reducing the price by 30%:

= 1,000 - 300

= $700

Answer:

105.6 ft

Step-by-step explanation:

The perimeter of a shape is just the lengths of its sides added up. Since a square has 4 equal sides, and a side is 26.4, the answer is 26.4 * 4 = 105.6 ft

Answer:

hope this helps

Step-by-step explanation:

If a variable with an exponent has an even exponent then it is a perfect square. To get the square root, we simply divide the exponent by 2. For example x8 is a perfect square, its square root is x4

Answer:

i think the second answer??

Step-by-step explanation:

Answer: 8

Step-by-step explanation:

Given

Money deposited [tex]P=200[/tex]

Interest rate [tex]R=4\%[/tex]

Time period [tex]T=1\ yr[/tex]

For a year simple and compound interest is the same

[tex]\therefore \text{Interest}=\dfrac{P\times R\times T}{100}\\\\\Rightarrow \text{Interest}=\dfrac{200\times 4\times 1}{100}\\\\\Rightarrow 8[/tex]

Thus, interest earned is 8 units

Answer:

Adriana is correct

Step-by-step explanation:

if you get rid of E, it is a 90 degree angle. so:

90-20=70

which is Adriana's answer

Answer:

2V10 = 6.324 I have to write this

Answer:

Ratio of goat to total number of animals at the zoo = 2 : 5

Step-by-step explanation:

Chickens = 2

Deer = 4

Donkeys = 3

Goats = 6

Total animals at the zoo = 15

what is the ratio of goats to the total number of animals at the zoo?

Ratio of goat to total number of animals at the zoo = 6 : 15

= 6/15

= 2/5

Ratio of goat to total number of animals at the zoo = 2 : 5

Answer:

123456762123456787654321`4567898

Answer:

123456762123456787654321`4567898

Step-by-step explanation:

Answer:

4.09

Step-by-step explanation:

Circumference=

[tex]2\pi \times r[/tex]

The circumference of the circular base of the object is 4.082 in

The circumference is the length of any great circle, the intersection of the sphere with any plane passing through its center.

Given that, we need to find the circumference of the circular base of the object, whose radius is 0.5 in

The circular object is referred as circle, the circle's circumference is its boundary length measured in unit whose power is always 1, like m, cm, km etc.

Here, if we calculate the circumference of the object, we will get,

The circumference of any circular object given by :-

C = 2π×radius

C = 2×3.14×0.65 = 4.082 in

Hence, the circumference of the circular base of the object is 4.082 in

Learn more about circumference, click;

https://brainly.com/question/28757341

#SPJ6

Answer:

25%

Step-by-step explanation:

so out of 32 marbles, 8 of them are red. This means the rest are blue which is 24 blue. To make a percentage, all you do is make a fraction. out of 32, 8 were red so 8/32. Fractions are basically division so 8/32 is 0.25. This means 25%.

She completed 65% so she has 35% more to go. ( 100% - 65% = 35%)

Multiply the length of the race by the percentage left:

40 x 0.35 = 14

She has 14 miles left.

The answer is B. 14 miles

Answer:

in 5 weeks i think

Step-by-step explanation

I added 300+20 5 times. Same with the 250

Answer:

5

Step-by-step explanation:

to vick = W1 = 300 + 20 x    (  1 )

to anya = W2 = 250 + 30 x    ( 2)           Both 1 and 2 ( simulataneous )

When W1 =  W2

300 + 20 x = 250 + 30 x

          10 x   = 5

  so they need 5 months

Answer:

Not accomplishable.

Step-by-step explanation:

Could you please stucture this question more simply. This partly doesn't make sense, unless I am wrong.

Answer:

55 degrees

Step-by-step explanation:

Angle ACE and BDE are congruent so segments AC and BD are parallel.  That makes angles CAE and DBE congruent.

6x - 15 = 5x - 1

x - 15 = -1

x = 14

So, the measure of angle BDE = 4x = 56 degrees.  The measure of angle DBE = 5x - 1 = 69 degrees.

The total of all angles in triangle BDE is 180 degrees, so the measure of angle E = 180 - 56 - 69 = 55

Answer:

0, -2

Step-by-step explanation:

Can I have brainliest? I hope this helped and have a nice day!

Answer:

(-1, -5)

Step-by-step explanation:

Answer:

c:88

Step-by-step explanation:

The angle that measures 92 degrees and the angle with the question mark are supplementary angles which mean their sums make up 180 degrees because they are on a line. So 180 degrees - 92 degrees = 88 degrees.

Answer:

7 pizzas

Step-by-step explanation:

18 people × 3 slices each = 54 slices

54 ÷ 8 = 6.75

7 pizzas

Answer:

They should order 7 pizzas.

Step-by-step explanation:

18 people x 3 slices per person = 54 slices you will need for everyone

54 slices divided by 8 = 6.75 pizzas.

Round 6.75 to 7 pizzas.

They should order 7 pizzas because you cannot ask the pizza place for 6.75 pizzas.

Answer:

The correct answer is: D Conditional Statement. Explanation: A conditional statement is a statement in "if, then" form. This statement is "If A, then B." This makes it a conditional statement

Step-by-step explanation:

Answer:

Pages                Time(hours)

 [tex]\frac{85}{2}[/tex]                       [tex]\frac{5}{3}[/tex]

 [tex]x[/tex]                        [tex]1[/tex]

[tex]x*\frac{5}{3} = \frac{85}{2} *1\\\\x = \frac{85*3}{5} = 17*3 = 51 \ pages[/tex]

Answer:

-28c+144

Step-by-step explanation:

if you simplify -16(c-4)-12c+80

it equals -28c+144

Explanations:

Distribute

-16(c-4)-12c + 80 ---> -16c + 64 - 12c +80

Add the numbers

-16c+64-12c+80 ---> -16c+144-12c

Combine like terms

-16c+144-12c

-28c+144