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Alecsey [184]
3 years ago
9

Joseph's age is three times that of his sister, Isabella. When you add Joseph's age to Isabella's age, you get 36. How old is Jo

seph? (a) Write an equation that represents the situation. Explain any variable used. (b) Solve the equation from Part (a). Show your work. State your solution as a complete sentence.
Mathematics
1 answer:
kogti [31]3 years ago
3 0
A: x (isabella)
3x+x=36
b: 3x+x=36
4x=36
x=9
3x=27
c: Joseph is 27 years old.
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Which expression can be used to find the surface area of the following square pyramid
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Answer:

a. 36+15+15+15+15

Step-by-step explanation:

The base of the pyramid is a square. We know that all sides of a square are equal so if we multiply the two sides of the base square(6*6) we get 36.

The area of a triangle can be found with the formula (b*h)/2. If we input the given values of 5 and 6 into our equation, then (5*6)/2 is 15 and since there are 4 triangles in the square pyramid, you multiply 15 by 4 (or add 15+15+15+15), and add the 36 from the base square.

Hope this helps :)

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2 years ago
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Answer:

Jamal and Gary

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3 years ago
Find the volume of a cylinder with a diameter of 6 inches and a height that is three times the radius. Use pi on your calculator
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ANSWER
V=254.47in^3

EXPLANATION

The volume of a cylinder is given by the formula:

V=\pi \: {r}^{2} h

The given cylinder has diameter 6. This means that, the radius is

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The is height is

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We substitute the values into the formula to obtain;

V=\pi \: {3}^{2} \times 9

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7 0
3 years ago
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rodikova [14]

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hope this helps!

7 0
2 years ago
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