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3 years ago

A+b/a-b = 5/3 what are the following ratios? b:a

Mathematics

1 answer:

klio [65]3 years ago

7 0

Answer:

b : a = 1 : 4

Step-by-step explanation:

$\frac{ a + b}{ a - b}$ = $\frac{5}{3}$

3 ( a + b) = 5 ( a - b)

3 a + 3 b = 5 a - 5 b

5 b + 3 b = 5 a - 3 a

8 b = 2 a

$\frac{b}{a}$ = $\frac{2}{8}$

b : a = 1 : 4

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Se desean plantar 361 plantas de limón, en un terreno cuadrado, de manera que en cada fila queden a un metro de distancia.

Mila [183]

Respuesta:

Explicación paso a paso:

Si se van a plantar 361 limoneros en un campo cuadrado;

Entonces, el número de plantas en cada fila debe ser el mismo por columna;

Sea el número de plantas por hilera = x

Número total de plantas = x²

361 = x²

Saca la raíz cuadrada de ambos lados

√361 = √x²

19 = x

Número de plantas por hilera = 19

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3 years ago

Solve the system using substitution. 3x+5y=15 2x+4y=8

Minchanka [31]

Answer:

x=10

y=-3

Step-by-step explanation:

3x + 5y= 15...eqn. 1

2x + 4y= 8...eqn. 2

multiply eqn. 1 by 2 and eqn. 2 by 3

6x + 10y = 30...eqn. 3

6x + 12y = 24...eqn. 4

0 - 2y = 6

divide both sides by the coefficient of y which is -2

- 2y = 6

- 2 -2

y= -3

Put y= -3 into eqn. 1

3x + 5(-3) = 15

3x - 15 = 15

3x =15 + 15

3x = 30

3 3

x = 10

Therefore X= 10 and Y= -3

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3 years ago

A tree height when planted was 5ft. 8inches. It has grown 14ft. 10 inches how much did it grown

Serjik [45]

Answer:

Subtraction will happen in this case.
14ft-5ft= 9ft
10 inches-8 inches= 2 inches
So, it grew 9ft. and 2 inches.

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2 years ago

FOR EASY BRAINLIEST ANSWER AND EXPLAIN!! ASAP

Alina [70]

Answer: 9 1/3 minutes
First create an equation with the given information; with x being the commercial time, 30=3x+2, now solve for x. First subtract 2 from each side and get 28=3x and then divide each side by 3 to get 9 and 1/3 minutes.

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3 years ago

Which equation matches the graph? PLEASE HELP MEEEE

Rama09 [41]

Answer: Y = 3x - 2

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I hope this helps, and Happy Holidays! :)

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3 years ago