a school teacher can grade 3 tests in 18 minutes. If class starts in 3 hours and there are 27 tests to grade, will they be done in time?

Answers

Answer 1

Answer:

yes.

honestly, I didn't really do all the math.

3 in 18 minutes, a little better than 3 in 20 minutes. that translates to 9 in an hour, with 6 minutes left over.

3 hours of that (3×9) is the 27. with 6 minutes per hour left over, for a total of 18 minutes.

the teacher has time to grade the tests, get a cup of coffee, and take a few minutes to wonder why she didn't go into an easier line if work.


Related Questions

PLZ HELP PLZZZZZZZZZ

Answers

Answer:

c.

Step-by-step explanation:

If 1/2 gallon of paint covers 1/12 of a wall, then how many quarts of paint are needed
for the entire wall?

Answers

Answer:

24

Step-by-step explanation:

So 4 quarts are in a gallon and it requires 6 gallons 12 divided by 2 is 6 so 6•4 is 24 quarts

24 because iI just got 24

Mitchell buys a rug that is 3.8 meters long and 0.9 meters wide. How many square meters does the rug cover? Record your answer below in a complete sentence.

Answers

Answer:3.42

Step-by-step explanation:to get the answer to a area equation you need to multiply the length by the width.

I'll give a brainliest PLZ HELPP ​

Answers

m = 18 also for future use download microsoft math solver on your phone or you can go on the laptop too

Answer:

This is your answer ☺️☺️☺️

Find the missing side of this right
triangle.
Х
6
10

Answers

X² = 10² + 6²
X² = 100 + 36
X² = 136
X = √136

Heights of men aged 25 to 34 have a standard deviation of 2.9. Use a 0.05 significance level to test the claim that the heights of women aged 25 to 34 have a different standard deviation. The heights (in inces) of 16 randomly selected women aged 25 to 34 are listed below.
62.13 65.09 64.18 66.72 61.15 67.50 64.65 63.09
63.80 64.21 60.17 68.28 66.49 62.10 65.73 64.72
Select the correct conclusion based on the null hypothesis and final conclusion

Answers

Answer:

Based on the given data, there is no evidence to support the claim that the standard deviation of the heights of women aged 25 to 34 have a different standard deviation from men aged 25 to 34

Step-by-step explanation:

The standard deviation for the heights of men aged 25 to 34, σ₀ = 2.9

The population variance, σ₀ = 2.9² = 8.41

The significance level of the test = 0.05

The number of randomly selected women in the sample, n = 16

The given heights of the 16 randomly selected women are listed as follows;

62.13, 65.09, 64.18, 66.72, 61.15, 67.50, 64.65, 63.09, 63.80, 64.21, 60.17, 68.28, 66.49, 62.10, 65.73, 64.72

By using the Mean (Average) and standard deviation of a sample formula from Microsoft Excel, we have;

The mean height of the women, [tex]\overline x[/tex] = 63.37563

The standard deviation of the variance, s₂ = 2.2 78511

The null hypothesis, H₀; σ = 2.9

The alternative hypothesis, H₀; σ ≠ 2.9

The chi-square test is given as follows;

T = (N - 1)(s/σ₀)²

Therefore, we have;

T = (16 - 1)(2.278511/2.9)² ≈ 9.2597

The critical value for the lower tail = 6.908

The critical value for the upper tail = 28.845

For the critical region, we have;

Reject H₀ if T <6.908 or T > 28.845

Therefore, given that the critical T is larger than 6.908 and less than 28.845, we fail to reject the null hypothesis, and there is not enough statistical evidence to prove that there is a difference in the standard deviation of the heights of men and women aged 25 to 34

please work it out and don't waste points man do it only if you know how to work it out because everyone's been wasting my points :(

Answers

Answer:

Please refer to the attachment


1/3 of a number decreased by 13 equals 45.
What equation would it be?

Answers

Answer:

1/3x - 13 = 45

to find x:

45+ 13 * 3 = x

Step-by-step explanation:

Evaluate for x =4;9 x​

Answers

Answer:

36

Step-by-step explanation:

x = 4 --- (given)

9x = 9 × 4

= 36

PLEASE HELP ME ASAP I AM BEGGING YOU. NO SPAM ANSWERS. Find the perimeter of the shaded regions below. Give your answer as a completely simplified exact value in terms of (no approximations). The figures below are based on semicircles or quarter circles and problems b), c), and d) are involving portions of a square. ONLY FIND THE PERIMITER PLZ​

Answers

Answer:

All i have is the area which is 4.5·π cm² + 18 cm² =

Step-by-step explanation:

Answer:

What is the perimeter

What is the answer pls help

Answers

Answer: 1 m is 9 there are 7 m so 7X9 =63

Step-by-step explanation:

Answer:

the answer would be 9

expination:

because 63 divide by 7 would be 9

May someone please help me if so I’ll give you a thanks and you will get points!

Answers

1. Is a line segment
A line segment has no arrows
2. Is a ray
A ray has one arrow
3. Is a line
A line has arrows on both sides
For the writing, just put the letters from left to right. Then draw the line like how it is and which way it’s pointing (ray) on top of the letters

54=6b
what is the b
ASAP
HELP PLEASE ​

Answers

Answer:

b is 9

Step-by-step explanation:

okay

please mark me as brainlist and be happy also add me on sñap

arshad2623f

i will be happy <3

Answer:

its 9 this has to be at least 20 characters

complete the 2 column proof below given j = h and line m bisects gk

Answers

2 Colin is j = h with us like m with bisects gk is your answer

which of the following could explain the changes in growth between the 15th month and the 24th month ?

please refer to pictures

Answers

Answer:  The Answer is A

Step-by-step explanation:

i think it's right

tried to think didnt work it out help

Answers

Answer:

Givn : OK = 3, OJ = 30, KN = 1, JM = 3

ON=OK+KN=3+1=4

OM=OJ+JM=30+10=40

In triangles OKJ & ONM,

OKOJ=330=110

ONOM=440=110

Angle O is common in both the triangles.

Two sides are in same proportion and the included angle is common (SAS) . Hence both the triangles are similar.

That means KJNM=110 or the two sides are parallel.

Hence ˆK=ˆN,ˆJ=ˆM corresponding angles.

You buy school clothes during a sale when everything in the store is 15% off. Which of the following could describe
your total cost?
(29.99 + 18.65 + 32.59) 0.15 = 0
(29.99 + 18.65 + 32.59) 0.85 = 0
(29.99 + 18.65 + 32.59). 1.15 = 0
(29.99 + 18.65 + 32.59) - 0.15(29.99 + 18.65 + 32.59) = 0
1.15(29.99 + 18.65 + 32.59) - 0.15(29.99 + 18.65 + 32.59) = C
0.15(29.99 + 18.65+ 32.59) (29.99 + 18.65 + 32.59) = 0

Answers

Answer:

(29.99 + 18.65 + 32.59) 0.85 = 0

(29.99 + 18.65 + 32.59) - 0.15(29.99 + 18.65 + 32.59) = 0

Step-by-step explanation:

The 15% off represents percentage discount. The relationship between percentage discount and total cost is given by the equation;

Actual cost - (Percentage discount) Actual cost = Total cost

The correct options are;

(29.99 + 18.65 + 32.59) 0.85 = 0

(29.99 + 18.65 + 32.59) - 0.15(29.99 + 18.65 + 32.59) = 0

Answer:

(29.99 + 18.65 + 32.59) 0.85 = 0 is correct

Step-by-step explanation:

[tex]2nx^{2} +15n+7\\[/tex]

Answers

Answer:

x = ± √(-15n-7) / √2n    (± (-15n-7)^(1/2) / (2n)^(1/2))

Step-by-step explanation:

Factoring?

2nx² + 15n+7 = 0

2nx² + 0*x + (15n+7) = 0  ... ax²+bx+c=0

Roots: x = (-2b ± √b²-4ac)) / 2a = (0 ± √0-4*2n*(15n+7)) / 4n

x = ± (√8n (-15n-7)) / 4n = ± (2√2n(-15n-7)) / 4n = ± (√2n(-15n-7)) / 2n

or x = ± √(-15n-7) / √2n

Is b = 6 a solution to the inequality b – 3 > 5?

Answers

Answer:Hlello, my name is woods245.

So you have the problem b - 3>5 and is says that b=6.

So know the problem looks like this. 6 - 3>5.

Step-by-step explanation:

Write an equation in point-slope form of the line that passes through the given point and has the given slope. (2, 7); m = -4

Answers

Answer:

y-7=-4(x-2)

Step-by-step explanation:

y-y1=m(x-x1)

y-7=-4(x-2)


La siguiente tabla modela una función exponencial. Encuentre f(10).

Answers

creo q la repuesta es f(10) = 59049

A company has two manufacturing plants with daily production levels of 6x+17 items and 3x-5 ​items, respectively. The first plant produces how many more items daily than the second​ plant?

Answers

Answer:

3x+22

the other guys wrong

Step-by-step explanation:

Find the value or x that makes CDE FGH very confused

Answers

Answer:

x = 5

Step-by-step explanation:

10/25 = (3x-1)/35

75x-25 = 350

75x = 375

x = 5

|3v – 91 = -21
Please help! I can't find the solution for this equation

Answers

Answer:

3v=70

divide both side by 3

=70/3 or ~23.33333

WILL GIVE BRAINLIEST!!!! Name all of the transformations from h(x) = sinx to f(x) = −4 sin (3x – π) + 5 ANSWER ASAP FOR MORE POINTS!!!!

Answers

Answer:

Step-by-step explanation:

The -4 makes the waves taller (Amplitude 4), and the negitive flips over x-axis.

In (3x-pi) The three compresses horizontally making the waves tighter. The -pi shifts the funtion pi to the right.

The +5 shifts up five.

Please help!! (Geometry) (WILL GIVE BRAINY) ( look at picture)

Answers

1- not sure, but my guess is C

2- 113? what did i do: I added all the sides and subtracted them by 720

3- 75


Which number line shows the solution to the inequality -2x - -3 > -11

Answers

Answer: c

Step-by-step explanation:

(is about the brainstem)

Answers

Answer:

C

Step-by-step explanation:

What are the parts and functions of the brain stem?

To sum up, the brain stem is the lowest anatomical region of the brain. The brain stem is divided into three major parts; the midbrain, the pons, and the medulla. The brain stem controls the bulk of autonomic physiological functions, including respiration, heartbeat, reflexes, digestion, and sleep.

resource: sciencetrends.com

Please help me i really need help it's due right now at 11:30am if i don't submit i'm not gonna pass please i really need help please
identify a personality trait that best characterizes Oya. Explain how she demonstrates this trait. Provide specific textual evidence to illustrate it. And explain how a specific character from A Raisin in the Sun is similar to Oya.

Answers

Answer:

Oya is charming and happy!

Step-by-step explanation:

Please Help with problems 7-10!!!!

Answers

Answer:

7) 3m + 21

8) 8t + 12

9) 45 + 30r

10) 32n - 16n or just 16n

Step-by-step explanation:

just use the distributive property

Hope this helped! Have a nice day! Plz mark as brainliest!!!

-XxDeathshotxX

Other Questions
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