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Ksenya-84 [330]
3 years ago
7

Jay had to pain part of the outside of this house he spend 7 hours painting one side and 12 hours painting another how long did

it take him to pain both side?
Mathematics
2 answers:
Whitepunk [10]3 years ago
8 0

Answer:

the answer is 19 hours

stich3 [128]3 years ago
7 0

Answer:

19 hours

Step-by-step explanation:

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One inch is what part of one yard?<br><br> F. 1/12<br> G. 1/100<br> H. 1/3<br> J. 1/36
viva [34]

I think the answer is either:

J.1/36 or G.1/100

Because 1 yard is 0.027778 inch. So it has to be a really small fraction.

3 0
3 years ago
Read 2 more answers
. A box in a certain supply room contains four 40-W lightbulbs, five 60-W bulbs, and six 75-W bulbs. Suppose that three bulbs ar
yaroslaw [1]

Answer:

a) 59.34%

b) 44.82%

c) 26.37%

d) 4.19%

Step-by-step explanation:

(a)

There are in total <em>4+5+6 = 15 bulbs</em>. If we want to select 3 randomly there are  K ways of doing this, where K is the<em> combination of 15 elements taken 3 at a time </em>

K=\binom{15}{3}=\frac{15!}{3!(15-3)!}=\frac{15!}{3!12!}=\frac{15.14.13}{6}=455

As there are 9 non 75-W bulbs, by the fundamental rule of counting, there are 6*5*9 = 270 ways of selecting 3 bulbs with exactly two 75-W bulbs.

So, the probability of selecting exactly 2 bulbs of 75 W is

\frac{270}{455}=0.5934=59.34\%

(b)

The probability of selecting three 40-W bulbs is

\frac{4*3*2}{455}=0.0527=5.27\%

The probability of selecting three 60-W bulbs is

\frac{5*4*3}{455}=0.1318=13.18\%

The probability of selecting three 75-W bulbs is

\frac{6*5*4}{455}=0.2637=26.37\%

Since <em>the events are disjoint</em>, the probability of taking 3 bulbs of the same kind is the sum 0.0527+0.1318+0.2637 = 0.4482 = 44.82%

(c)

There are 6*5*4 ways of selecting one bulb of each type, so the probability of selecting 3 bulbs of each type is

\frac{6*5*4}{455}=0.2637=26.37\%

(d)

The probability that it is necessary to examine at least six bulbs until a 75-W bulb is found, <em>supposing there is no replacement</em>, is the same as the probability of taking 5 bulbs one after another without replacement and none of them is 75-W.

As there are 15 bulbs and 9 of them are not 75-W, the probability a non 75-W bulb is \frac{9}{15}=0.6

Since there are no replacement, the probability of taking a second non 75-W bulb is now \frac{8}{14}=0.5714

Following this procedure 5 times, we find the probabilities

\frac{9}{15},\frac{8}{14},\frac{7}{13},\frac{6}{12},\frac{5}{11}

which are

0.6, 0.5714, 0.5384, 0.5, 0.4545

As the events are independent, the probability of choosing 5 non 75-W bulbs is the product

0.6*0.5714*0.5384*0.5*0.4545 = 0.0419 = 4.19%

3 0
3 years ago
Irene knows her blood type is A, but William does not know his blood type. However, William knows that his mother and father bot
Lostsunrise [7]

Based on this information, William's blood type could be either B or O.

What is Segregation of alleles?

  • Allele pairs (several features of the same gene) are segregated during meiosis so that they can be transferred selectively to different gametes.
  • During meiosis, maternal and paternal alleles separate.

What is genotype vs phenotype ?

  • Genotype: An organism's genetic makeup.
  • Phenotype. physical characteristic that arises within an organism as a result of its genotype. Probability law.
  • Genotype - the set of alleles that make up an organism.

How does genotype influence phenotype ?

  • The alleles you have for a specific gene or collection of genes are referred to as your genotype.
  • The physical attribute itself, or phenotype, can be affected by both genotype and environmental variables.

Learn more about Genotype

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3 0
2 years ago
90x − 20 what is the constant term in this equation
Fittoniya [83]
The constant term in the equation is -20 because you will always be subtracting 20 no matter how big x is
7 0
3 years ago
Read 2 more answers
Find the ordered pairs for x and y intercepts of the equation 3x - 2y =18
My name is Ann [436]
                  
                                                           3x - 2y = 18
Wherever the line crosses the
x-axis, y=0.                                         3x        = 18
                                                             x        =  6
The x-intercept is                                    (6, 0)  .


                                                           3x - 2y = 18
Wherever the line crosses the
y-axis,  x=0.                                            - 2y = 18
                                                                   y = -9
The y-intercept is                                        (0, -9)  .

8 0
3 years ago
Read 2 more answers
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