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3 years ago

-1/3d + 4/5 = 3/4 solve for the variable.

Mathematics

2 answers:

vekshin13 years ago

7 0

-1/3d+4/5=3/4
-1/3d=3/4-4/5
-1/3d=15/20-16/2
-1/3d= -1/20 multiply everything by -1
1/3d=1/20
d=1/20 over 1/3
d=3/20

Gnesinka [82]3 years ago

4 0

Answer: x equals 12

Step-by-step explanation:

hope this helped

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Suma doua numere este 702.Diferenta lor este un sfert din scazator .Afla cele doua numere dAU COROANA

Molodets [167]

Answer:

Cele două numere căutate sunt:

390
312

Step-by-step explanation:

Pentru a rezolva necunoscutul cu aceste două numere, trebuie create două ecuații cu două necunoscute X și Y cu informațiile obținute: În primul rând, știm că suma celor două numere este egală cu 702, prin urmare:

1. X + Y = 702

Apoi se menționează că diferența (adică scăderea) dintre cele două numere este egală cu un sfert din numărul cel mai mic, pentru a avea o referință, vom identifica variabila Y ca fiind cel mai mic număr, deci a doua ecuație ar fi:

2. X - Y = 0,25Y sau Y / 4

Ștergem variabila X în a doua ecuație:

X - Y = 0,25Y
X = 0,25Y + Y
X = 1,25Y

Ecuația 1 este acum folosită cu X-ul șters:

X + Y = 702
1,25Y + Y = 702
2,25Y = 702
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Y = 312

Acum, din moment ce se știe că este X = 1.25Y, valoarea lui Y este înlocuită și obținem:

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8 0

3 years ago

Help

faust18 [17]

Answer:

y - 6 = (-1/2)(x - 4)

Step-by-step explanation:

As we go from (4, 6) to (6, 10), x (the run) increases by 2 and y (the rise) increases by 4. Thus, the slope of the line connecting these two points is m = rise / run = 4/2 = 2.

The slope of a line perpendicular to this one is the negative reciprocal of 2, which is -1/2.

Using the point-slope formula, we get the following equation for the perpendicular line:

y - 6 = (-1/2)(x - 4) ( obtained using the point (4, 6) )

3 0

3 years ago

Tyson has two movie tickets and wants to randomly select one of six friends to go with him. He rolls a six-sided die to make his

GarryVolchara [31]

Answer:

The relative frequency of rolling a particular number can be calculated using the formula

relative frequency , where f is the actual frequency of an event and n is the number of times the experiment is performed. This experiment had the following results:

The relative frequency of rolling a 1 is 0.2.

The relative frequency of rolling a 2 is about 0.23.

The relative frequency of rolling a 3 is about 0.13.

The relative frequency of rolling a 4 is 0.15.

The relative frequency of rolling a 5 is 0.15.

The relative frequency of rolling a 6 is about 0.13.

The relative frequencies of rolling 1, 2, 3, 4, 5, and 6 are quite similar. So, the relative frequency is a good predictor of the theoretical probability.

Step-by-step explanation:

this is exact answer from edmentum so change it up a bit

6 0

3 years ago