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Kipish [7]
3 years ago
5

If Y varies directly as x and y=15 when x=8, what is the value of Y when x=12. HURRY PLS

Mathematics
1 answer:
pychu [463]3 years ago
7 0

Answer:

y = 19

Step-by-step explanation:

y = 15

x = 8

The difference is of 7

y = 19

x = 12

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Find the equation of the linear function represented by the table below in slope-
alisha [4.7K]

Answer:

y = 8x + 8

Step-by-step explanation:

The y-intercept is already given so we have our b = 8 so y = mx + b becomes y = mx + 8. Now we need to figure out the slope so looking at the chart I need to figure out what number when multiplied by the x value and added to b equals the y value. The answer is 8 because when we multiply it by 1 and add it to 8 we are left with 16, which supports the chart. The equation in slope intercept form is now y = 8x + 8

6 0
3 years ago
The length of a human pregnancy is normally distributed with a mean of 272 days with a standard deviation of 9 days (Bhat &
VARVARA [1.3K]

Answer:

Less than 264.44 days would be for the shortest 20%

Step-by-step explanation:

Given that X, the length of a human pregnancy is normally distributed with a mean of 272 days with a standard deviation of 9 days (Bhat & Kushtagi, 2006).

X is N(272, 9)

Corresponding Z score would be for any x

z=\frac{x-272}{9}

We have to find out the shortest 20%

Corresponding z score i.e. z score 20th percentile is given by

-0.84

corresponding x score is

272-0.84*9\\= 264.44

Less than 264.44 days would be for the shortest 20%

8 0
3 years ago
Helppppppppppp plssss
Reptile [31]

Answer:

It is the 3rd choice. It is 4 times as big as the smaller cylinder

Step-by-step explanation:

V = πr2h

r - radius

h - height

π - pi

  • Small cyclinder

= π(3)2(10)

enter into a calucaltor and you get 282.74

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= π(6)2(10)

enter into a calucaltor and you get 1130.97

Divide 1130 by 282 and you get about 4

3 0
3 years ago
Help me on this question with a explanation please.
liq [111]
Answer is 50cm, to get the diameter you divide the circumference by pi.
7 0
3 years ago
Please I really need help!​
Black_prince [1.1K]

6+5+11+15=37

so she sold 37 cups of lemonade in 4 hours

3 0
4 years ago
Read 2 more answers
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