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3 years ago

Tessellations

Mathematics

2 answers:

vladimir2022 [97]3 years ago

6 0

Answer:

Step-by-step explanation:

I calculated it logically

ioda3 years ago

6 0

Answer:

The answer to your question is C

Step-by-step explanation:

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Which is greater 12/12 10/11

nexus9112 [7]

12/12 is greater because it is the same thing as 1 whole, whereas 10/11 is still considered a fraction of a whole number.

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3 years ago

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Luke order an extra large square pizza for all of his friends. The area of the pizza was 289cm². what is the perimeter of crust

AlekseyPX

Answer:

68 cm

Step-by-step explanation:

√289 = 17

each side is 17 cm

17 * 4 = 68 cm

3 0

4 years ago

which of these expressions is the same as 6 × (a 2)? a 6 × a 6 × 2 b 6 (a × 2) c (6 × a) 2 d a × (6 2)

Thepotemich [5.8K]

B. 6 (a x 2)
is your answer

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3 years ago

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Cammie can mow 1/2 acre in 25 minutes. If her rate is constant, Cammie says she can mow 1 1/4 acres in one hour. Is Cammie corre

Sergeu [11.5K]

Answer: No, Cammie is not correct. She can mow $1\frac{1}{5}\ acres$ in one hour (See explanation).

Step-by-step explanation:

Convert the mixed number to an impoper fraction:

1. Multiply the whole number part by the denominator of the fraction and add the product to the numerator.

2. The denominator does not change.

Then:

$1\frac{1}{4}=\frac{(1*4)+1}{4}=\frac{5}{4}$

Let be "x" the acres Cammie can mow in one hour.

You know that she can mow $\frac{1}{2}\ acre$ in 25 minutes, then you can set up the following proportion (Remember that 1 hour has 60 minutes):

$\frac{\frac{1}{2}}{25}=\frac{x}{60}$

Solving for "x", you get:

$\frac{\frac{1}{2}}{25}=\frac{x}{60}\\\\(60)(\frac{1}{50})=x\\\\x=\frac{6}{5}$

Convert from improper fraction to mixed number:

1. When you divide 6 by 5, the quotient is 1. This will be the whole number part.

2. The remainder is 1. This will be the numerator.

3. The denominator does not change.

Then:

$x=1\frac{1}{5}$

Therefore, she can mow $1\frac{1}{5}\ acres$ in one hour.

3 0

3 years ago

08.01)Marlow wants to know how many students in his school enjoy watching the TV news. He asks all 27 students in his art class

Inga [223]

Part 1 : Marlow wants to know how many students in his school enjoy watching the TV news. He asks all 27 students in his art class and finds that 30% of his classmates enjoy watching the TV news. He claims that 30% of the school's student population would be expected to enjoy watching the TV news. Is Marlow making a valid inference about his population?

No, it is not a valid inference because he asked all 27 students in his art class instead of taking a sample from the school

No, it is not a valid inference because his classmates do not make up a random sample of the students in the school

Yes, it is a valid inference because he asked all 27 students in his art class

Yes, it is a valid inference because his classmates make up a random sample of the students in the school

Answer = The correct answer is B because Marlow was supposed to ask random kids and they were not suppose to be in his class.

Part 2 : Carl takes a random sample of 100 students in his school and finds that 72% of the sample prefers pizza over burgers. There are 1,500 students in the school. Based on the sample proportion, how many students in the school would be expected to prefer pizza over burgers? 

72

100

1,080

1,500

1500 / 100×72= 1080

7 0

4 years ago