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2 years ago

The base and the altitude of a triangle

Mathematics

1 answer:

marishachu [46]2 years ago

5 0

Answer:

base=6

Step-by-step explanation:

$\frac{base}{altitude}=\frac{1}{2}~=>2*base=altitude\\\\area=\frac{1}{2}base*altutude=\frac{1}{2}base*(2base)=base^2=36~=>base=6\\\\$

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What is the value of x in the equation 3.5x+5.4=19.4

kipiarov [429]

Answer: x = 4

Step-by-step explanation: To solve this equation, we could go right to our steps of subtracting 5.4 from both sides, but I would do a slightly different approach.

Since I hate working with decimals, I would get rid of them.

We can do this by multiplying both sides of the equation by 10, and remember to multiply every term by 10 to keep it balanced.

*Multiplying by 10 shifts the decimal point 1 place to the right

So we have 35x + 54 = 194 which looks a lot better.

Now subtract 54 from both sides to get 35x = 140.

Now divide both sides by 35 and x = 4.

4 0

1 year ago

A person jogged 10 times along the perimeter of a rectangular field at the rate of 12 kilometers per hour for 30 minutes. If the

notsponge [240]

Answer:

The area of the rectangular field is 20,000 square meters.

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Number of times a person jogged along the rectangular field = 10

Speed of the person jogging = 12 km per hour

Time he/she jogged = 30 minutes = 0.5 hours

Length of the field = twice its width

2. Find the area of the field in square meters.

Step A: Let's calculate the distance the person jogged

Let's recall the formula of the speed:

Speed = Distance/Time

Distance = Speed * Time

Replacing with the values we know:

Distance = 12 * 0.5

Distance = 6 kilometers

Step B: Let's calculate the perimeter of the rectangular field

Distance jogged = ¨Perimeter * 10

6 kilometers = Perimeter * 10

Perimeter = 6/10

Perimeter = 0.6 kilometers = 0.6 * 1,000 = 600 meters

Perimeter = 2 * Length + 2 * Width

x = Width of the rectangular field

2x = Length of the rectangular field

600 = 2 * 2x + 2 * x

600 = 4x + 2x

600 = 6x

x = 600/6 = 100 meters ⇒ 2x = 200 meters

Step C: Let's calculate the area of the rectangular field

Let's recall the formula of the area of a rectangle:

A = Length * Width

A = 200 * 100

A = 20,000 m² (square meters)

7 0

2 years ago

Can you tell me who's correct with an explanation and what the cause of error is? Please? lol.

Zielflug [23.3K]

It's not an irrational number because the decimal is repeating. If it went on forever and never repeated then it would be an irrational number.

I think the error is that Richie thought for a number to be irrational, it just needed to repeat forever.

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2 years ago

A container has 3 apple juice boxes, 4 grape juice boxes, and 5 orange juice boxes. Alex picks one juice box, drinks it and then

Vinil7 [7]

The probability is 10/12. If you need it as a decimal, it should be about 8.3%

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2 years ago

The figure represents a water trough in the shape of a rectangular prism. The dimensions of

Serhud [2]

Answer:hssdojd

Step-by-step explanation:

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2 years ago