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snow_tiger [21]
1 year ago
5

A teacher grades 27 tests in 3 hours.find the constance of variation

Mathematics
1 answer:
Elena-2011 [213]1 year ago
8 0

Answer: 9

Step-by-step explanation:

27 divided by 3 is 9 so 9 is the constant variation

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Warren drives half the distance Kendall drives to work. Kendall drives 26 more miles to work than Joe. Warren drives 15 miles. W
dem82 [27]

Answer:

15 times 2 - 26 = x

Step-by-step explanation:

Warren drives half the distance Kendall drives to work. Kendall drives 26 more miles to work than Joe. Warren drives 15 miles. Write an equation that models this situation. Use x to represent the number of miles Joe drives to work.

W X 1/2 = K

K - 26 = J

so 15 times 2 - 26 = x

6 0
3 years ago
Read 2 more answers
The end of a hose was resting on the ground, pointing up an angle. Sal measured the path of the water coming out of the hose and
lawyer [7]

Functions can be used to model real life situations.

The hose is 3.2 feet above the ground, at a horizontal distance of 4 fee

The function is given as:

f(x) =-0.3x^2 + 2x

At a horizontal distance of 4 feet, the value of x is 4

i.e. x = 4

Substitute 4 for x in f(x).

So, we have:

f(4) =-0.3(4)^2 + 2(4)

Evaluate the exponent

f(4) =-0.3(16) + 2(4)

Open both brackets

f(4) =-4.8 + 8

Add -4.8 and 8

f(4) =3.2

Hence, the hose is 3.2 feet above the ground

Read more about functions at:

brainly.com/question/10837575

7 0
3 years ago
What is the value of y?<br> 3y+10/4=y
k0ka [10]
The answer is y=2. Hope this helps!
8 0
3 years ago
PLEASE HELP ASAP which of these is/isn't a funciton?
Olenka [21]
I would say age of a plant to its height is a function while the others are not.
6 0
3 years ago
Read 2 more answers
1000 coins are tossed find the probability of getting exactly 500 heads.
ipn [44]

Answer:

probability of getting exactly 500 heads= 1

Step-by-step explanation:

If a coin is tossed, the probability of obtaining a head = 0.5

If a coin is tossed, the probability of obtaining a tail= 1- probability of obtaining a head

If a coin is tossed, the probability of obtaining a tail=1-0.5

If a coin is tossed, the probability of obtaining a tail=0.5

So if 1000 coin are tossed, the probability of getting exay 500 heads which is already the half of 1000 is 1

5 0
3 years ago
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