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nignag [31]
2 years ago
3

Harriet counts 15 big boxes and 12 small boxes of notebooks. Each large box contains 189 notebooks, and each small box contains

79 notebooks. Estimate the total number of notebooks. Is your estimate an overestimate or an underestimate? Explain why it is better to have an overestimate than an underestimate.
Mathematics
2 answers:
earnstyle [38]2 years ago
7 0

I would round 189 to 190 and multiply by 15

190 *15 = 2850

I would round 79 to 80 and multiply 80x 12 = 960

2850 + 960 = 3810 notebooks ( estimated)


actual totals: 15*189 = 2835

12*79 = 948

2835 + 948 = 3783


this estimate was high

 depending on the situation depends on if it is better to over estimate or under estimate

 

STatiana [176]2 years ago
6 0

Answer:

3783

Step-by-step explanation:

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A cone is cut out of the center of a pyramid with a rectangular base. The rectangular base has side lengths of 15 and 10 units.
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Answer:

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Step-by-step explanation:

Volume of the shaded portion = Volume of pyramid - Volume of cone

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w = width of base of pyramid = 10 units

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Plug in the values to find the volume of the pyramid

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Volume of Cone = ⅓πr²h,

Where,

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2 years ago
489 to the nearest ten​
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Your answer is 490
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