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Vladimir79 [104]
3 years ago
13

How would the following problem be represented using colored tiles? -7 + (-3) seven red tiles plus three blue tiles seven red ti

les plus three red tiles seven blue tiles plus three red tiles seven blue tiles plus three blue tiles
Mathematics
2 answers:
Lelechka [254]3 years ago
5 0

Answer:

Ok, we have the equation:

-7 + (-3)

Both numbers are negative, so the solution of this will be:

-7 + (-3) = -7 - 3 = -10.

Now, how we can represent it with tiles?

First we need to define, which tiles are the ones representing negative numbers?

We can use:

Red = positive

Blue = negative.

Then:

-7 is represented with seven blue tiles

-3 is represented with tree blue tiles

then:

(-7) + (-3)

will be represented with seven blue tiles, plus tree blue tiles.

When we add them, we have a total of 10 blue tiles, and as blue tiles represent negative numbers, 10 blue tiles is equal to -10.

murzikaleks [220]3 years ago
5 0

Answer:

-7-3

Step-by-step explanation:

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It went up from 15.50 to 18.60, so it really went up 3.10.

if we take 15.50 to be the 100%, what is 3.10 off of it in percentage?

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15.50&100\\
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Answer:

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Step-by-step explanation:

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The length of a rectangle is 5 cm more than the width. The perimeter is 38 cm. Find the width.
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3 years ago
Ryan the trainer has two solo workout plans that he offers his clients: Plan A and Plan B. Each client does either one or the ot
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Answer:

Both plans last for 1.25 hours (1 hour 15 minutes)

Step-by-step explanation:

Let x hours be the time needed for plan A and y hours be the time needed for plan B.

On Wednesday there were 5 clients who did Plan A and 3 who did Plan B. Thus, 5x+3y=10.

On Thursday there were 2 clients who did Plan A and 6 who did Plan B. Thus, 2x+6y=10.

Solve the sytem of two equation. Multiply the first equation by 2, the second by 5 and subtract them:

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Answer:

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Step-by-step explanation:

Split it up into a top rectangle and a bottom rectangle. Find the area of the top rectangle and subtract the combined area of the two quarter circles.

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