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Kamila [148]
3 years ago
15

Answer quick plsssssssss

Mathematics
1 answer:
Sedbober [7]3 years ago
3 0

Statements 1 and 4 are true, the others are false.

Step-by-step explanation:

Step 1:

First, we need to convert the fractions into decimals so they can be compared to each other on a common scale.

The birch tree ; \frac{1}{7} = \frac{1}{7} (100) = 0.142(100)= 14.2\%,

The pine tree ; \frac{7}{9} = \frac{7}{9} (100) = 0.777(100)= 77.7\%,

The maple tree ; \frac{1}{4} = \frac{1}{4} (100) = 0.250(100)= 25\%,

The oak tree ; \frac{11}{23} = \frac{12}{23} (100) = 0.478(100)= 47.8\%.

Step 2:

Now we check each of the given options to so which are true.

Option 1; Most students found a pine tree, 77.7% is more than any other tree, so it is true.

Option 2; the maple tree > the pine tree. The maple tree was 25% while the pine tree was 77.7%, so it is false.

Option 3; the birch tree > the oak tree. The birch tree was 14.2% while the oak tree was 47.8%, so it is false.

Option 4; the pine tree > the birch tree. The pine tree was 77.7% while the birch tree was 14.2%, so it is true.

Option 5; the maple tree > the oak tree. The maple tree was 25% while the oak tree was 47.8%, so it is false.

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A cat had a litter of 5 kittens. If each sex is equally likely, what is the probability that 3 or less were female kittens?
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Answer:

0.8125

Step-by-step explanation:

In this question, we are tasked with calculating the probability that 3 or less of her kittens were female.

Since each bsex is of likely probability, the probability of a male kitten = probability of a female kitten = 0.5

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Where m is the probability of a male kitten and f is the probability of having a female kitten with both values = 0.5

P(f) ≤ 3 =(0.3125) + (0.3125) + (0.15625) + (0.03125) = 0.8125

8 0
2 years ago
Charlotte is redecorating the master bedroom in her house. She has purchased a new bedroom set and also plans to paint the room
nasty-shy [4]
Dimensions of the room------------------- >16*13
1 in---------------- >0.0833333 foot
3 in----------------- >x
x=3*.0833333=0.25 ft
Let
<span>C-------------- > dimensions of the piece of carpet that Charlotte must purchase
C-------------- > (16+2*0.25)*(13+2*0.25)---------- > (16.50)*(13.50)=222.75 ft</span>²
<span>
The answer a the question 1) is 16.50 feet X 13.50 feet</span>

The answer a the question 2) is 222.75 ft²

<span>3. How many hours should it take for the four-person crew to lay the flooring in Charlotte's bedroom?

if </span><span>two-person carpet crew can lay 50 square feet of carpet---------- > 1 hour</span><span>
four person </span>carpet crew can lay 100 square feet of carpet---------- > 1 hour

therefore

if  100 ft² carpet----------------------- > 1 hour
 222.75 ft² carpet--------------------- > x
x=222.75/100=2.2275 hours=2.23 hours

The answer is 2.23 hours

6 0
3 years ago
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