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Solnce55 [7]
3 years ago
8

Tina is planning to paint a wood box she is using small paint cans that cover 20 square feet of surface area how many cans will

Tina need to paint the outside of her wood box
Mathematics
1 answer:
valkas [14]3 years ago
7 0

Answer:

How much is the ouside of the box?

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Suppose you have 60 red marbles and 40 blue marbles in a
andrew-mc [135]

Answer:  The required probability is 0.26.

Step-by-step explanation: Given that there are 60 red marbles and 40 blue marbles in a  box 10 marbles are picked without replacement.

We are to find the probability of selecting 6 red marbles.

Since the marbles are picked up without replacement, so it is a situation of combination.

Let S denote the sample space of the experiment of drawing 10 marbles and E denote the event that 6 marbles are red.

So,

n(S)=^{100}C_{10}=\dfrac{100!}{10!(100-10)!}=\dfrac{100!}{10!90!}=17310309456440,\\\\\\n(E)=^{60}C_6\times^{40}C_4=\dfrac{60!}{6!54!}\times\dfrac{40!}{4!36!}=50063860\times91390.

Therefore, the probability of event E is given by

P(E)=\dfrac{n(E)}{n(S)}=\dfrac{50063860\times91390}{17310309456440}=0.26.

Thus, the required probability is 0.26.

6 0
3 years ago
A car owner buys diesel at rs 7.50, rs 8, rs 8.50 per litre for three successive years. what approximately is the average cost p
alex41 [277]

Answer:

Average cost per litre of diesel = rs 8.00

Step-by-step explanation:

Amount spent on diesel each year = rs 4000

Price of a litre of diesel in the first year = rs 7.50

Price of a litre of diesel in the second year = rs 8.00

Price of a litre of diesel in the third year = rs 8.50

Average cost per litre of diesel = \frac{p_{1} + p_{2} + p_{3}  }{n}

where n is the number of years.

Average cost per litre of diesel  =  \frac{7.5 + 8.00 + 8.50}{3}

                                                     = \frac{24}{3}

                                                     = 8

Average cost per litre of diesel is rs 8.00

So that he buys an average of 500 (i.e \frac{4000}{8}) litres every year.

5 0
3 years ago
A 3rd degree polynomial function whose graph crosses the horizontal axis more than once.
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There are millions of solutions I’d recommend going to desmos and putting in a polynomial to find out if it does
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2 years ago
What is 1 Tablespoon as a fraction?
OLEGan [10]
In a cup, one tablespoon is 1/16. There are 16 tablespoons in a cup. 1 tablespoon also equals 3 teaspoons.
8 0
3 years ago
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HELPPP 8th grade math!!!!! Will give brainlist
Stels [109]

Answer:

60 degrees

Step-by-step explanation: It's hard and I might not be right, think through it and if you get what I got then submit it, I don't want the blood of failure in my hands >:D gl homie

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