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2 years ago

5/3x + 1/3x = 21 2/3 + 7/3x

Mathematics

2 answers:

NemiM [27]2 years ago

5 0

Answer: x=-65

Step-by-step explanation:

Solve for x by simplifying both sides of the equation, then isolating the variable.

MrMuchimi2 years ago

5 0

Then you will have -1/3x=65/3 cross-multiply to get -3=195x then divide by 195 to get x=-1/65

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Step-by-step explanation:

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Answer:

Step-by-step explanation:

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7 0

2 years ago

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Step-by-step explanation:

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2 years ago

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sdas [7]

Given:

A right prism has height 7½ and triangular bases with sides of length 5, 12, and 13.

To find:

The total surface area of the prism.

Solution:

We have,

Height of prism = 7½ = 7.5

Sides of triangular base are 5, 12, 13. These sides of Pythagorean triplets because

$5^2+12^2=13^2$

$25+144=169$

$169=169$

So, the base of the prism is a right triangle.

Area of a triangle is

$Area=\dfrac{1}{2}\times base \times height$

$A_1=\dfrac{1}{2}\times 5\times 12$

$A_1=30$

The area of the base is equal to the area of the top, i.e., $A_2=30$ sq units.

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$P=30$

The curved surface area of the prism is

$CSA=\text{Perimeter of the base}\times \text{Height of the prism}$

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2 years ago