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Nostrana [21]
3 years ago
9

How is the product of 2 and –5 shown using integer tiles? 2 positive tiles and 5 negative tiles. 2 negative tiles and 5 positive

tiles. 5 negative tiles and 5 negative tiles. 5 positive tiles and 5 positive tiles.
Mathematics
2 answers:
Levart [38]3 years ago
6 0

Answer:

5 negative tiles and 5 negative tiles

Step-by-step explanation:

When multiplying a positive number by a negative number, the product is always negative.

This can be visualized using integer tiles:

AlladinOne [14]3 years ago
3 0

Answer:

So lets say the negative tiles are red and the poiitive tiles are yellow.

Now for the first one

2*-5

That would be shown with two groups of fives with red tiles

Now we know its -10 be used if you count it up, its 10 negatives red tiles

-2*5

So 5 groups of 2 red tiles and if you count it all up, you’ll get -10

-5*-5

So 5 groups of -5 tiles

You’d get -25

But thats not the answer

I have no clue to show this but i guess you just have to know that negative *negative is positive so just switch the signs

25

5*5

Just make 5 groups of 5 yellow tiles and count them up, you’ll get 25

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A bicycle store costs ​$3500 per month to operate. The store pays an average of ​$75 per bike. The average selling price of each
vfiekz [6]

Answer: the store needs to sell 50 bicycles each month to break even

Step-by-step explanation:

The average selling price of each bicycle is ​$145.

When we talk of break even, we are referring to the point at which the income being accrued from a business is equal to the total cost of running the business. At this point, their is no profit and there is no loss.

From the example information given,

Total cost of running the business will be

cost of operating the bicycle store + the total amount the store pays per bike.

cost of operating the bicycle store

= ​$3500 per month

The store pays an average of ​$75 per bicycle. If the store buys x bicycles per month, then,

Total the total amount the store pays per bike = 75 × x = 75x

Total cost of running the business per month

= 3500 + 75x - - - - - - -1

The average selling price of each bicycle is ​$145. This means that the selling price for x bicycles will be

145 × x = 145x

Therefore , total income is $145x

To break even,

145x = 3500 + 75x

145x - 75x = 3500

70x = 3500

x = 3500 / 70 = 50

8 0
3 years ago
Estimate the sum or difference 4/5+18/20 A 1 B 1 ,1/2 C 2
const2013 [10]

Answer:

C 2

Step-by-step explanation:

4/5+18/20=1.7

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6 0
3 years ago
Thrice the difference between x and 4 is less than9 what's the inequality
3241004551 [841]
(x-4)•2 < 9
the difference between x and 4 means to subtract
and twice that means to double or times by 2
and all that’s LESS than 9
so the sign opens up towards the 9
4 0
3 years ago
Pi/6 is the reference angle for:<br><br> 3pi/6<br><br> 5pi/6<br><br> 13pi/6<br><br> 8pi/6
Elanso [62]

Answer:

\frac{5\pi}{6}, \frac{13\pi}{6}

Step by step

Remember, a reference angle is a positive acute angle that represents an angle θ of any measurement.

a)

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b)

\frac{5\pi}{6}=150^ \circ is in the second cuadrant, then its reference angle is 180^ \circ -150^{\circ}=30^{\circ}=\frac{\pi}{6}

c)

\frac{13\pi}{6}=390^\circ=360^\circ+30^\circ, then it is in the first cuadrant and the reference angle is 30^\circ =\frac{\pi}{6}.

d)

\frac{8\pi}{6}=240^\circ and it is in the third cuadrant, then its reference angle is 240^\circ -180^\circ=60^\circ=\frac{\pi}{3}

5 0
3 years ago
If two parallel planes are cut by a third plane, then the lines of intersection are _________.
maxonik [38]
<span>If two parallel planes are cut by a third plane, then the lines of intersection are parallel and cannot intersect one another.</span>
6 0
3 years ago
Read 2 more answers
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