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marishachu [46]
3 years ago
14

Vanessa is solving the equation -3 + 4x=9

Mathematics
2 answers:
mina [271]3 years ago
8 0

Answer:

The -3

Step-by-step explanation:

Hope this helps :)

Gnom [1K]3 years ago
7 0

Step-by-step explanation:

Vanessa is trying to solve the equation for x.

The given equation is -3 + 4x = 9, or 4x - 3 = 9

She shouldn't be subtracting any number in the beginning. Instead, she should do the opposite of PEMDAS:

1) Vanessa should add 3 to both sides:

4x - 3 (+3) = 9 (+3)

4x = 9 + 3

4x = 12

2) Next, she should divide 4 from both sides:

(4x)/4 = (12)/4

x = 12/4

x = 3

Vanessa's answer will be x = 3.

~

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Answer:

i) 1350 m

ii) 5400 m

Step-by-step explanation:

<u>Formula for Speed</u>

\boxed{\sf Speed=\dfrac{Distance}{Time}}

Rearrange the formula so that Distance is the subject:

\implies \sf Distance = Speed \times Time

<h3><u>Question (i)</u></h3>

Given:

  • Speed = 45 m/s (meters per second)
  • Time = 30 seconds

Substitute the given values into the formula for distance:

\implies \sf Distance = 45 \times 30 = 1350\:m

<h3><u>Question (ii)</u></h3>

Given:

  • Speed = 45 m/s (meters per second)
  • Time = 2 minutes

As the time is given in a different unit of time as the speed, we must first convert the time into seconds:

1 minute = 60 seconds

⇒ 2 minutes = 60 × 2 = 120 seconds

Therefore:

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  • Time = 120 seconds

Substitute the values into the formula for distance:

\implies \sf Distance = 45 \times 120 = 5400\:m

3 0
9 months ago
Read 2 more answers
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Answer:

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Step-by-step explanation:

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3 years ago
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horrorfan [7]

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9 number is composite is answer

Step-by-step explanation:

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I hope this is helpful!

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Andrews [41]

Answer:

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Step-by-step explanation:

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