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erastovalidia [21]
3 years ago
15

The value of y directly varies with the value of x. If y equals 21when x is 14, what is the value of y when x = 20?

Mathematics
1 answer:
Karo-lina-s [1.5K]3 years ago
8 0

Answer:

21×20÷14

=3×20÷2

=3×10

x=30

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Please help! Don't put anything random for the points I really need help!​
Kamila [148]

Answer:

x = -2 and x = 5/4

Step-by-step explanation:

The image below shows step-by-step on how to solve it.

Hope this helps! :)

8 0
3 years ago
If 1 moose weighs 1500 pounds how many tons do 3 moose weigh?
-BARSIC- [3]
Okay so 1 ton is equal to 2,000 pounds... So first you times 1500 by 3 to get 4500. Since 1 ton equals 2,000 you can fit 2 full tons and there's half left over. So your answer is 2 1/2 tons! hope that helps!! :)
7 0
3 years ago
New Brunswick middle school had 1,250 students last year this year they had a 15% increase. how many students are in new Brunswi
VikaD [51]
Okay so 1250x0.15=187.5

1250+187.5=1437.5


1437.5 is your final answer
7 0
3 years ago
1. for what constant k must f(k) always equal the constant term of f(x) for any polynomial f(x) 2. If we multiply a polynomial b
DIA [1.3K]

Answer:

1. k=0

2. yes, result is still a polynomial.

3. yes, f and g must have the same degree to have deg(f+g) < deg(f) or deg(g)

Step-by-step explanation:

1. for what constant k must f(k) always equal the constant term of f(x) for any polynomial f(x)

for k=0 any polynomial f(x) will reduce f(k) to the constant term.

2. If we multiply a polynomial by a constant, is the result a polynomial?

Yes, If we multiply a polynomial by a constant, the result is always a polynomial.

3. if deg(f+g) is less than both deg f and deg g, then must f and g have the same degree?

Yes.  

If

deg(f+g) < deg(f) and

deg(f+g) < deg(g)

then it means that the two leading terms cancel out, which can happen only if f and g have the same degree.

5 0
4 years ago
Need help ASAP! due soon!!!
-BARSIC- [3]

Answer:

Option B

Step-by-step explanation:

First make x = 4 and y = 3 in the equation y = -1/2x + 5

it should look like 3 = -1/2(4) + 5 now we can solve

   -1/2 * 4 = -2         →      3 = -2 +5

       -2 + 5 = 3         →          3 = 3

5 0
3 years ago
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