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umka21 [38]
2 years ago
14

Does y varies directly with x? Find the constant of variation and write the equation.​

Mathematics
1 answer:
amid [387]2 years ago
7 0
Some textbooks describe direct variation by saying " y varies directly as x ", " y varies proportionally as x ", or " y is directly proportional to x . ") This means that as x increases, y increases and as x decreases, y decreases—and that the ratio between them always stays the same.
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Lori bought a shirt and a hat at half-off sale. If she spent a total of $21 on the two items, what was the original price of the
Rzqust [24]

Answer:

41

Step-by-step explanation:

first you do 21×2 and that's literally it

3 0
3 years ago
Let’s try another one. A bag contains 36 red, 48 green, 22 yellow, and 19 purple blocks. There are 125 blocks in the bag. You ch
kati45 [8]
Theoretical probability (TP) is given by:
TP=[Number of favorable (desired) outcomes]/[Total number of possible outcomes]
From the information given:
Number of purple blocks=19
Total number of possible outcomes=125
thus;
TP=19/125
    =0.152
6 0
3 years ago
The polynomial 3x ^ 3 - 16x ^ 2 + 31x - 20 the area of a trapezoidal desktop . Of the bases of the x ^ 3 - 5x the height of the
vaieri [72.5K]

Answer:

Step-by-step explanation:

Given:

Area = 3x^3 - 16x^2 + 31x - 20

Base:

x^3 - 5x

Area of trapezoid, S = 1/2 × (A + B) × h

Using long division,

(2 × (3x^3 - 16x^2 + 31x - 20))/x^3 - 5x

= (6x^3 - 32x^2 + 62x - 40))/x^3 - 5x = 6 - (32x^2 - 92x + 40)/x^3 - 5x = 2S/Bh - Ah/Bh

= 2S/Bh - A/B

= (2S/B × 1/h) - A/B

Since, x^3 - 5x = B

Comparing the above,

A = 32x^2 - 92x + 40

2S/B = 6

Therefore, h = 1

6 0
3 years ago
If 1/2 = 32/d what is d first answer gets brainerlist
Scilla [17]

Answer:

D would be equal to 64

You just need to multiply 32 by 2

4 0
3 years ago
Read 2 more answers
Which number is farthest from 0? 8, -3, -12, 5
Vaselesa [24]

Answer:

-12

Step-by-step explanation:

because it take 12 number to get to -12

6 0
3 years ago
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