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san4es73 [151]
3 years ago
10

Solve Thais equation 2x=8(4x-5).

Mathematics
2 answers:
shutvik [7]3 years ago
8 0

Answer:

x = \frac{40}{-30\\}

Step-by-step explanation:

Lets start by working with our numbers on the right side of the equation.

Begin by using distributive property, turning:

<em>2x = 8(4x - 5)</em> into <em>2x = 32x - 40</em>

To make things easier, lets subtract 32x on both sides

-30x = 40

Finally, divide by -30 on both sides to get our answered, simplified if necessary:

x = \frac{40}{-30}  = \frac{4}{-3} = -1.33

Misha Larkins [42]3 years ago
6 0
4/3 in fraction form
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Last night, Roberto spent 90 minutes doing homework, infinity symbol hour reading, and 540 seconds making his lunch for the next
Margarita [4]

Answer:

41 minutes

Step-by-step explanation:

We are given;

Time spent on homework = 90 minutes

Time spent reading = 2/3 hours = 2/3 × 60 minutes = 40 minutes

Time spent making lunch = 540 seconds = 540/60 minutes = 9 minutes

We want to find how many more minutes Roberto spent doing homework than he did reading and making his lunch.

Thus;

Time spent on reading and making lunch = 40 + 9 = 49 minutes

Hence, the word "how many more" means we will subtract 49 from 90.

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Step-by-step explanation:

6 0
3 years ago
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12345 [234]

System of Linear Equations entered :

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[2] y + x = 4

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Multiply equation [1] by 3

// Equations now take the shape:

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Graphic Representation of the Equations :

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Solve by Substitution :

// Solve equation [2] for the variable x

[2] x = -y + 4

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8 0
3 years ago
Which continent is estimated to have more than 5.31 billion people by 2050? To solve find what percent 5.31 is of billion is of
emmasim [6.3K]

The continent which has 59% of the total population will have more than 5.31 billion people by 2050.

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It is given that,

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Therefore, you need to find out which continent has the estimated number by finding the percentage value.

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Let x be the percentage to be calculated.

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⇒ (x/100) × 9 = 5.31

⇒ x = (5.31 × 100) / 9

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∴ The continent which has 59% of the total population will have more than 5.31 billion people by 2050.

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