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Dmitry_Shevchenko [17]
2 years ago
15

Demetrius and Yosef are training for a race.

Mathematics
1 answer:
Andru [333]2 years ago
8 0

Answer:

You could use the equation y = mx + b to solve this problem. The m would equal 7.5 and the be would be zero, so the equation would be y = 7.5x + 0. Add values for x and you would get y.

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If you answer this you will get 69 points but please answer asap
spin [16.1K]

Answer:

I think the answer for the first one is 3 I am not sure about the second one

3 0
2 years ago
This table discluding the 18
Neporo4naja [7]
The table is times 16      
5 0
3 years ago
789/548x-89/887=688/8724 find x
Olin [163]

\frac{789}{548}x- \frac{89}{887}=\frac{688}{8724}

first we try to semplify as much as possible the fractions.

First we decompose the numbers

789 = 3 * 263

548 = 2 * 2 * 137 = 2^2

they have nothing in common, so the first fraction remains so

89 = 89 (prime number)

887 = 887 (prime number)

they have nothing in common, so the second one remains so

688 = 2 * 2 * 2 * 2 * 43 = 2^4 * 43

8724 = 2 * 2 * 3 * 727 = 2^2 * 3 * 727

they have 2^2 (=4) in common, so the numerator and the denominator can be devided by 4

\frac{688}{8724}= \frac{688:4}{8724:4}=\frac{172}{2181}

so:

\frac{789}{548}x- \frac{89}{887}=\frac{172}{2181}

now we calculate the common denominator

take the scomposition:

548 = 2^2 * 137

887 = 887

2181 = 3 * 727

take every number one time

so the common denominator is 2^2 * 137 * 887 * 727 * 3 = 1'060'131'756

now calculate every single numerator: first we divide each denominator by the common denominator, then we moltiply the result with each numerator

first fraction: 789/548

1060131756 / 548 = 1934547

1934547 * 789 = 1526357583

second fraction: 89/887

1060131756 / 887 = 1195188

1195188 * 89 = 106371732

third one: 172/2181

1060131756 / 2181 = 486076

486076 * 172 = 83605072

now we can delete the common denominator

1526357583x - 106371732 = 83605072

solve it

1526357583x = 83605072 + 106371732

1526357583x = 189976804

x = 1526357583 / 189976804

decompose

1526357583 = 887 * 3 * 3 * 727 * 263

189976804 = 137 * 2 * 2 * 211 * 53 * 31

nothing in common

x = 1526357583 / 189976804

8 0
2 years ago
Can someone please give an example of an open equation
Ivanshal [37]

an open equation is an equation where there is one or more variable for example x+5=12


4 0
3 years ago
Read 2 more answers
Dada la inecuación 5x - 2 ≥ 18, calcule el valor mínimo de x, realice el procedimiento.
blondinia [14]

Queremos encontrar el valor mínimo de x que es una solución para la inecación dada, veremos que es x = 4

<h3>Trabajando con inecuaciones.</h3>

Lo primero que debemos hacer es aislar la variable x en un lado de la inecuación, partimos de:

5x - 2 ≥ 18

Sumamos 2 en ambos lados:

5x -2 + 2 ≥ 18 + 2 = 20

5x ≥ 20

Ahora dividimos ambos lados por 5:

5x/5 ≥ 20/5

x ≥ 4

Esto significa que x es mayor o igual a 4, de aqui podemos concluir que el valor mínimo que puede tomar la variable es x = 4.

Sí quieres aprender más sobre inecuaciones puedes leer:

brainly.com/question/23023694

3 0
2 years ago
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