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kkurt [141]
2 years ago
7

Answerrrrr plzzzzzzzzzzzzzzzzzzzz

Mathematics
2 answers:
lys-0071 [83]2 years ago
5 0

Answer:

16

Step-by-step explanation:

Please mark my answer as brainliest :D

viva [34]2 years ago
4 0

Answer:

12

Step-by-step explanation:

5x+20 = 80, 5×12=60, 60+20=80

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The perimeter of an equilateral triangle is 5.1 m. How long are its sides?
Alja [10]

Answer:

1.7 meters

Step-by-step explanation:

because an equilateral triangle has 3 sides and they are all the same you can just divide 5.1 by 3

5.1 / 3 = 1.7

it is 1.7 m

7 0
2 years ago
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A square piece of paper 10 cm on a side is rolled to form the lateral surface area of a cylinder and then a top and bottom are a
Anika [276]

Answer:

The surface = pi*10cm2

Step-by-step explanation:

The area of any rectangle is Base *  Height,

We know that the square originally has 10cm High, when is rolled to form a cylinder, it's new shape has a bottom side that is equals to a circle.

The length of a circle is 2*pi*Radio= pi*Diameter.

Since the square has the same length in each side, we know that pi*Diameter= 10cm*pi

The surface (area) of the cylinder is= Base * Height= 10cm*10cm*pi

 

6 0
2 years ago
Trevor ran 2.3 miles on Monday and then ran some more on Tuesday, he had run a total of 5.55 miles for the week. How much did he
KiRa [710]

Answer:

He ran 3.25 on Tuesday

Step-by-step explanation:

The answer is 3.25 because 5.55 minus 2.3 is 3.25.

5 0
3 years ago
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Complete the place value chart for the following number.Write its number name and tell the value of the underlined digit.
makkiz [27]

Answer:

two hundredths

Step-by-step explanation:

6 is in the ones place. 3 is in the tenths place. 2 is in the hundredths place

5 is in the thousandths place.

7 0
3 years ago
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The adult height of a male is about 1.19 times his height at age 12. The adult height of a female is about 1.07 times her height
marissa [1.9K]
If you are 12 years old, just measure your own height, then multiply your height by 1.19 if you’re a male, or 1.07 if you’re a female.
6 0
2 years ago
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