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Artist 52 [7]
3 years ago
15

megan cut 108 roses to make flower arrangements. she made 9 equal arrangements. how many roses were in each arrangement. ​

Mathematics
1 answer:
wel3 years ago
4 0

Answer: 12 ROSES

Step-by-step explanation:

If we translate the problem to numbers you will see something like this:

x*9=108

Where:

x=the number of roses for each arrangements\\9=the amount of arrangements made\\108= the total of roses cut

So you have to solve the equation:

Its a first grade equation, you have to past the value with his product inverse, so the product transform into a division.

Then you have to solve the division between 108 and 9 to obtain the value:

x=\frac{108}{9} \\\\x= 12

And thats all.

To verify, now you can replace the x on the equation for the obtained value.

12*9=108

Greetings

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A thumbtack that is tossed can land point up or point down. The probability of a tack landing point up is 0.2. A simulation was
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Answer:

Option C: 0.28

Step-by-step explanation:

This is a binomial probability distribution problem.

Now, we want to find the probability that at least 2 thumbtacks land pointing up when 5 thumbtacks are tossed. This is written as;

P(X ≥ 2) = P(2) + P(3) + P(4) + P(5)

From the histogram;

P(5) = 0.02

P(4) = 0.02

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Thus;

P(X ≥ 2) = 0.19 + 0.05 + 0.02 + 0.02

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3 years ago
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Matt bought some boards to build a wooden deck. Some of the boards were 4 ft long and some of the boards were 5 ft long. He boug
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Answer:

8 boards.

Step-by-step explanation:

Since he bought a few of each length. The only combination that works is when he bought 5 of the 4 ft long board so 4×5=20. Than he bought 3 of the 5ft boards 3×5=15. 20+15=35 ft worth of boards.

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Answer:

Fraction of the original board left = \frac{2}{15}

Step-by-step explanation:

Let the length of the board is = l feet

Marty saws off \frac{1}{5} of a wooden board.

Length of the board left = l - (\frac{1}{5})l

                                        = (\frac{4}{5})l feet

He saws off \frac{3}{4}th of the remaining board,

Board left = (\frac{4}{5})l-[(\frac{4}{5})l\times (\frac{3}{4})]

                = \frac{4}{5}l-\frac{3}{5}l

                = \frac{1}{5}l feet

He finally saws off \frac{1}{3}rd of the remaining board.

Board left = \frac{1}{5}l-[\frac{1}{5}\times \frac{1}{3}]l

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                                                       = \frac{2}{15}

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Answer:

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