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Juliette [100K]
3 years ago
13

A rectangular bulletin board is 12 inches tall and 27 inches wide. Elena plans to cover it with squares of colored paper that ar

e all the same size. The paper squares come in different sizes; all of them have whole-number inches for their side lengths.
What is the side length of the largest square that Elena could use to cover the bulletin board completely without gaps and overlaps? Explain or show your reasoning.
Mathematics
2 answers:
quester [9]3 years ago
7 0

Answer:

the aswer is 26

Step-by-step explanation:

Daniel [21]3 years ago
7 0

9514 1404 393

Answer:

  3 inches

Step-by-step explanation:

The dimension of interest is the greatest common factor of 12 and 27.

  12 = 3 · 4

  27 = 3 · 9

The greatest common factor is 3.

Elena needs squares that are 3 inches on each side.

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Mkey [24]

Answer:

The answer is c

Step-by-step explanation:

8 0
3 years ago
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Using the slope formula, find the slope of the line through the given points.<br> (1,6) and (3,4)
svlad2 [7]
To find slope you do y2-y1 over x2-x1. So 4-6 is -2. And 3-1 is 2. So -2/2 is -1. The slope is -1.
7 0
3 years ago
M&amp;M plain candies come in various colors. According to the M&amp;M/Mars Department of Consumer Affairs, the distribution of
lyudmila [28]

Answer:

A) 0.12. Yes. Choosing a green and blue M&M is possible

B) 0.43. Yes. Choosing a yellow and red M&M is possible

C) 0.78

Step-by-step explanation:

First of all, the summation of the distribution of all colours is;

Σ(all colors ) = 22% + 20% + 23% + 10% + 6% + 6% + 13% = 100%, or 1.

Thus;

a) P(green candy or blue candy) is;

P(GREEN ∪ BLUE) = P(G) + P(BL)

P(GREEN ∪ BLUE) = 6%+6%

P(GREEN ∪ BLUE) = 12% or 0.12

Now, due to the fact that we have to choose ONE candy and only ONE candy at random, then they are mutually exclusive: Yes. Choosing a green and blue M&M is possible

b)P(yellow candy or red candy is;

P(YELLOW ∪ RED) = P(Y) + P(R)

P(YELLOW ∪ RED) = 20% + 23% = 43% or 0.43

Yes. Choosing a yellow and red M&M is possible

c) P(NOT PURPLE)

the probability of having a purple is;

P(PURPLE) = 22% or 0.22

So, the Probability of NOT having a PURPLE is 1 - 0.22 = 0.78

4 0
3 years ago
The difference of two trinomials is x2 - 10x + 2. If one of the trinomials is 3x? - 11x - 4, then which expression could be the
klio [65]

Answer:

2x^2-x-6

or

4x^2-21x-2

Step-by-step explanation:

The difference of two trinomials P(x) and Q(x) is x^2 - 10x + 2. This means that

P(x)-Q(x)=x^2-10x+2

or

Q(x)-P(x)=x^2-10x+2

If one of the trinomials is P(x)=3x^2-11x - 4, then

(3x^2-11x-4)-Q(x)=x^2-10x+2

or

Q(x)-(3x^2-11x-4)=x^2-10x+2

1. If (3x^2-11x-4)-Q(x)=x^2-10x+2, then

Q(x)=(3x^2-11x-4)-(x^2-10x+2)\\ \\Q(x)=(3x^2-x^2)+(-11x+10x)+(-4-2)\\ \\Q(x)=2x^2-x-6

2. If Q(x)-(3x^2-11x-4)=x^2-10x+2, then

Q(x)=(x^2-10x+2)+(3x^2-11x-4)\\ \\Q(x)=(x^2+3x^2)+(-10x-11x)+(2-4)\\ \\Q(x)=4x^2-21x-2

4 0
3 years ago
last week christi spent 2 3/4 hours playing piano this week she spent 3 2/4 hours playing piano how much more time did she play
Tasya [4]

Answer: 45 minutes

Step-by-step explanation:

On the first week she played 2 3/4 hours which translates to 2 hrs and 45 minutes (165 min), and this week she played for 3 2/4 hours which is 3 hours and 30 minutes (210 minutes)

Then just do 210 minus 165, and you'll get 45 minutes, which can also be said as 3/4 of an hour.

3 0
4 years ago
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