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Olegator [25]
3 years ago
8

Central therom in statistics

Mathematics
1 answer:
aev [14]3 years ago
4 0

Answer:

whats the question

Step-by-step explanation:

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Jane, Scott, and Frank have a total of $144 in their wallets. Frank has 4 times what Jane has. Scott has $6 less than Jane. How
konstantin123 [22]

Answer:

Jane have $25

Frank have $100

Scott have $19

Step-by-step explanation:

To find the amount that each have, we have to represent this information in a mathematical format  and then solve

let x represent represent the amount that Jane has

let Y represent represent the amount that Frank has

let z represent represent the amount that Scott has

From the question given, "Jane, Scott, and Frank have a total of $144"  can be represented mathematically as

x + y + z = $144 ---------------------------------------------------------------------------------(1)

"Frank has 4 times what Jane has"   can be represented mathematically as

y = 4x ---------------------------------------------------------------------------------------------(2)

"Scott has $6 less than Jane"  can be represented mathematically as

z= x- 6 ----------------------------------------------------------------------------------------------(3)

we can now solve the equations using the substitution method

substitute equation (2)  and (3)  into equation (1)

x + y + z = $144

x + 4x + x-6 = $144

6x -6 = $144

add 6 to both-side of the equation

6x - 6 + 6 = $144 + 6

6x =$150

Divide both-side of the equation by 6

6x/6 = 150/6

x = $25

from equation 2

y = 4x

substitute x= $25 in equation (2)

y = 4 (25)

y = $100

substitute x=$25 in equation  (3)

z = x- 6

z = 25 - 6

z=$19

Jane have $25

Frank have $100

Scott have $19

6 0
2 years ago
(07.03 LC)
Grace [21]

Answer:

B

Step-by-step explanation:

THis is a single equation with a single variable [y].

We can separate the variable in one side and the numbers to another and solve for y. Shown below:

3y + 4 = -2

3y = -2 - 4

3y = -6

y = -6/3

y = -2

THus, this equation has only 1 solution. B is correct

7 0
3 years ago
3% scored a ball is dropped and bounce to a height of 5 feet. The ball rebounds to 7% of the previous height after each bounce.
soldier1979 [14.2K]
Does anyone know the answer yet?
3 0
3 years ago
5 Isabella ran the 100-meter dash five times. The time it took her to complete each
vovikov84 [41]

Answer:

12.87  12.1  12.07  12.07

Step-by-step explanation:

4 0
3 years ago
What is the volume of a sphere with a radius of 3 inches
posledela
The\ volume\ of\ a\ sphere:V=\dfrac{4}{3}\pi R^3\\\\R=3\ in\\\\V=\dfrac{4}{3}\pi\cdot3^3=\dfrac{4}{3}\pi\cdot27=4\pi\cdot9=36\pi\\\\Answer:\boxed{V=36\pi\ in^3}
7 0
3 years ago
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