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3 years ago

1/2(5-2h)=h/2. What is h?

Mathematics

1 answer:

tia_tia [17]3 years ago

5 0

Multiply both sides by 2
5-2h=h

Then add 2h to both sides
5=3h

Divide both sides by 3
5/3=h

Final answer: h=5/3

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What is the volume of a right triangular pyramid whose base is 5 meters on each side and whose altitude is 4 meters?

algol13

Answer: 10 for each side but in total is 20

Step-by-step explanation: u multiply 5 x 4 = 20 divided by 2 to get 10 meters and another is 4 divided by 2 is 2 x 5 is 10 meters times 2 is 20 total

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3 years ago

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Tamiku [17]

Answer:

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Step-by-step explanation:

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3 years ago

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-8z+(4.5)+3.5z+7y-1.5

bogdanovich [222]

Answer:

$\boxed{\sf{7y+3-4.5z}}$

Step-by-step explanation:

In order to combine like terms, you have to isolate x and y from one side of the equation.

$\sf{-8z+\left(4.5\right)+3.5z+7y-1.5}$

First, thing you do is remove parentheses.

$\Longrightarrow: \sf{-8z+4.5+3.5z+7y-1.5}$

Solve.

Then, you combine like terms.

$\Longrightarrow:\sf{-8z+3.5z+7y+4.5-1.5}$

Add/subtract the numbers from left to right.

-8z+3.5z=-4.5z

Rewrite the problem down.

$\Longrightarrow: \sf{-4.5z+7y+4.5-1.5}$

Solve.

4.5-1.5=3

$\Longrightarrow: \boxed{\sf{7y+3-4.5z}}$

Therefore, the correct answer is 7y+3-4.5z.

I hope this helps, let me know if you have any questions.

6 0

2 years ago

Solve. 3(x-4) = -3 How do i slove this

astraxan [27]

Answer:

$3(x - 4) = - 3 \\ 3x + 12 = - 3 \\ 3x = - 15 \\ x = - 5$

Firstly, multiply the number and variable in the perenthesis. Then move the variable on it's own side of the equation. The simplify.

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3 years ago

Read 2 more answers

How to solve y for this problem:

True [87]

$16x+9=9y-2x\ \ |Add\ 2x\ to\ both\ sides\\\\
16x+9+2x=9y-2x+2x\\\\
18x+9=9y\ \ \ |Divide\ by\ 9\\\\
\frac{18x}{9}+\frac{9}{9}=\frac{9y}{9}\\\\
2x+1=y\\\\
Solution\ is\ y=2x+1.$

6 0

3 years ago