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Dominik [7]
3 years ago
11

Can someone answer this in associative property and communitive property?

Mathematics
1 answer:
alina1380 [7]3 years ago
6 0

Answer:

The required equivalent Expression is

-3+\frac{2}{3}y -4 -\frac{1}{3}y =-7+\frac{1}{3}y

Step-by-step explanation:

Associative property:

The associative property states that you can re-group numbers and you will get the same answer.

For Example:

A + (B + C) = (A + B) + C

Commutative property:

The commutative property states that you can move numbers around and still arrive at the same answer.

For Example:

A + B = B + A

Given:

-3+\frac{2}{3}y -4 -\frac{1}{3}y

Using Commutative property and associative property we get

-3+\frac{2}{3}y -4 -\frac{1}{3}y = -3 -4+\frac{2}{3}y -\frac{1}{3}y\\\\-3+\frac{2}{3}y -4 -\frac{1}{3}y = -7 +\frac{2-1}{3}y\\\\-3+\frac{2}{3}y -4 -\frac{1}{3}y =-7+\frac{1}{3}y

Therefore the required equivalent Expression is

-3+\frac{2}{3}y -4 -\frac{1}{3}y =-7+\frac{1}{3}y

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guajiro [1.7K]

Answer:

$10.5

Step-by-step explanation:

4(5.25) = $21 (total amount of money spent)

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8 0
3 years ago
Q19. When a resistor is placed across 230M supply (de) the
Vera_Pavlovna [14]

The value of the resistor that must be connected in parallel is 57.47 ohms

<h3>How to determine the resistor connected across the 230 V supply</h3>
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  • Current (I) = 12 A
  • Resistor 1 (R₁) =?

V = IR

230 = 12 × R₁

Divide both sides by 12

R₁ = 230 / 12

R₁ = 19.17 ohms

<h3>How to determine the total resistance</h3>
  • Voltage (V) = 230 V
  • Current (I) = 16 A
  • Total resistance (Rₜ) =?

V = IR

230 = 16 × Rₜ

Divide both sides by 12

Rₜ = 230 / 16

Rₜ = 14.375 ohms

<h3>How to determine the resistor connected in paralle</h3>
  • Resistor 1 (R₁) = 19.17 ohms
  • Total resistance (Rₜ) = 14.375 ohms
  • Resistor 2 (R₂) = ?

1/Rₜ = 1/R₁ + 1/R₂

Collect like terms

1/R₂ = 1/Rₜ - 1/R₁

R₂ = (Rₜ × R₁) / (R₁ - Rₜ)

R₂ = (14.375 × 19.17) / (19.17 - 14.375)

R₂ = 57.47 ohms

Learn more about Ohm's law:

brainly.com/question/796939

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I hope this helps you

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3 years ago
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raketka [301]
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5.625= (L)(1.25)
Divide both sides by 1.25
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