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butalik [34]
3 years ago
8

Does the equation -x+4y=-2 represent a direct variation. if so what is the constant variation

Mathematics
1 answer:
Harrizon [31]3 years ago
5 0

Answer:

Yes it represents.

Variation tax = 0,25

Step-by-step explanation:

Direct variation is the name we gave to the rate of change of a first degree function.

A first degree generic function is:

y = f(x) = ax + b

Now observe the question's function:

- x + 4y = -2

4y = x - 2

y = 1/4x - 2/4

y = f(x) = 0,25x - 0,5

0,25 is our constant variation, because any number that x assume will be multiplied by 0,25.

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Out of these numbers which of them differ by 46. 29,17,38,71,35,63,24
mafiozo [28]

Answer:

71

Step-by-step explanation:

Add 46 to each number, see if the sum is in the list. In the set of 7 numbers listed, two of them are even (24 and 38), and the other 5 numbers are odd

71

We do not need to look at all differences.

We need to find two numbers fairly far appart,

and not all look promising.

You could look at approximate differences,

or you could look at the last digit.

71-35 and 63-17 are the only promising differences,

because 71 and 63 are the only numbers large enough to be 46 more than another number in that list,

and when you calculate the last digit you calculate

11-5=6 and 13-7=6.

71-35=36

4 0
3 years ago
I need help on question #1 asap
bekas [8.4K]
The answer is three. divide 48 by any number under 6 if there a decimal they don't count if there answer is over 20 it doesn't count
3 0
3 years ago
Read 2 more answers
I need help ASAP!!<br> I just need help with problem one quick!
Misha Larkins [42]

Answer:

a. 5

b. -5

c. 13

d. -5

e. -13

f. 13

g. 5

h. -13

6 0
3 years ago
A study was done on several dogs that recently had litters of puppies. The results are shown below.
Reil [10]
Answer: 1/5
Explanation: 8/40 simplified in half is 4/20 then 2/10 then 1/5!
8 0
3 years ago
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A bus on a regular schedule takes 3 1/4 hours to reach its destination. The express bus takes 2 1/2 hours to make the same trip.
alisha [4.7K]
To find this answer, we should subtract 2 1/2 from 3 1/4. The simplest way to do this is to turn them into improper fractions, found the least common denominator, and subtract the numerators.

3 1/4=13/4
2 1/2=5/2

The least common multiple is 4, so we should multiply the numerator and denominator of 5/2 by 2.

5/2=10/4

Now we can just subtract the numerators.

13/4-10/4=3/4

Using the math above, we can see that it saves D. 3/4 hours.


3 0
3 years ago
Read 2 more answers
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