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Elden [556K]
3 years ago
9

There are 10 red bricks and a Lego set one half of the Lego set is yellow and one quarter of the Lego set and blue there are twi

ce as many blue bricks as red bricks if the remaining bricks are all black bricks how many black bricks are there in the Lego set ?
Mathematics
2 answers:
kupik [55]3 years ago
6 0
20 blue, 10 red, 40 yellow. There are no clues to how many black.
yan [13]3 years ago
4 0
How many bricks are there in all? Does it say?..
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5(k+4)-2k simplify the expression
mixas84 [53]

Answer:

3 k + 20

Step-by-step explanation:

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A multivitamin tablet contains 10.5 mg of calcium. How much calcium does a bottle of 50 tablets contain? Write your answer in gr
andrew11 [14]
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3 years ago
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To form 3 adjacent squares (as in the figure), 10 toothpicks are required. How many toothpicks are required to form 100 adjacent
Sonja [21]
<span>Let's say in general you want "n" adjacent squares. Each one needs a top, so that's n toothpicks. Each one needs a bottom, so that's another n toothpicks, and we're up to 2n total. You need one on the far left, and one on the far right, which brings us up to 2n + 2 toothpicks. Now we need to worry about the middle ones. But notice that you don't need n toothpicks for the interior because adjacent squares share. It turns out that you only need n-1. That brings us up to a grand total of 3n + 1 toothpicks, which would be 301 for n = 100.


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7 0
2 years ago
An elephant can run of a mile in 36 seconds. At this rate, which expression can be used to determine how fast an elephant runs i
Mice21 [21]

<u>Answer:</u>

The expression that can be used to determine how fast an elephant runs in miles per hour is 100 miles per hour

<u>Solution:</u>

Given that,

Distance covered by an elephant in 36 seconds is equal to 1 mile

Therefore, <em>distance covered by the elephant in 1 second</em> is  \frac{1}{36} mile

Therefore, <em>distance covered by the elephant in 60 seconds</em> (60 seconds = 1 minute) is

\frac{1}{36} \times 60=\frac{5}{3} \text { miles }

Therefore, <em>distance covered by the elephant in 60 minute</em> (60 minute = 1 hour) is

\frac{5}{3} \times 60=100 \text { miles per hour }

Hence the expression that can be used to determine how fast an elephant runs in miles per hour is 100 miles per hour

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3 years ago
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kykrilka [37]

The answer is -4 i just did the test

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