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Harlamova29_29 [7]
4 years ago
5

you practice the piano for 30 minutes each day.write and solve an equation to find the total time t you spend practicing piano f

or a week.
Mathematics
2 answers:
djyliett [7]4 years ago
7 0
t=30\cdot7

\boxed{t=210}

Hope this helps :)
Natasha2012 [34]4 years ago
5 0
Hey there! Inequalities and equations are pretty simple once you figure out what everything means, so here's a quick review. The variable is the unknown amount or quantity that can be repeated as many times as needed. Next, because you practice for 30 minutes for 7 days, we multiply the numbers. You get 210. So your answer is 210 minutes= T Hope I helped!!
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Thepotemich [5.8K]
You can use this formula to solve this problem... it uses the surface area to find the volume.

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3 years ago
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Airida [17]

the center square is 20 x 20 = 400

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3 years ago
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aniked [119]
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2 years ago
Help easy math question!!!
bogdanovich [222]

Answer:

The length of the third side of the triangle is 30.

Step-by-step explanation:

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a^{2} + b^{2} = c^{2}

The hypotenuse, based on the problem, is 50. Anyways, let's get back to calculating!

We need to multiply 40 times 40 and 50 times 50.

40 times 40, or 40 squared, equals to 1600.

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Now, let's subtract. 2500 - 1600 = 900. We need to find the square root of 900--which is 30, because 30 times 30, or 30 squared, equals to 900.

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3 years ago
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9

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f(3) = 9

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