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2 years ago

What number is shown by the model? A. 28 B. 2080 C. 208 o D. 280

Mathematics

2 answers:

Alex17521 [72]2 years ago

6 0

Answer:

280

Step-by-step explanation:

each of those squares are 100 and each bar is 10

add up the squares and you have 200

add up the bars and you have 80

add 200 and 80 and you have your answer. 280

Yanka [14]2 years ago

6 0

Answer:

Step-by-step explanation:

Well, the bars, if you count them are ten for each column.

There are 8 bars on the right, so that is 280 - 80 = 200

There are two squares that are ten by ten, so that is 200 - 100 * 2 = 0

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3 years ago

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Step-by-step explanation:

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3 years ago

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3 years ago

Write an equation that models the sequence 400, 200, 100, 50, ...

Julli [10]

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3 years ago

Read 2 more answers

During the cold winter months, a sheet of ice covers a lake near the Arctic Circle. At the beginning of spring, the ice starts t

Masja [62]

Answer: The ice sheet's thickness decrease every 6 weeks= 1.5 meters

Step-by-step explanation:

GIven: At the beginning of spring, the ice starts to melt. The variable sss models the ice sheet's thickness (in meters) t weeks after the beginning of spring. $s=-0.25t+4$

At t=0, $s=4$

So, Thickness of ice sheet at the beginning = 4 meters

Now at t= 6, we get

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3 years ago