MATHEMATICS HIGH SCHOOL

if the perimeter of the rectangle is 96 feet, what are the length and width of the rectangular section?

Answers

Answer 1

Answer:

Answer:

length is 39ft

width is 9ft

Step-by-step explanation:

let 6x - 15 be the length and x be the width

the perimeter of a rectangle is 2(L+W)

96 = 2(6x - 15 + x)

96 = 2(7x - 15)

96 = 14x - 30

126 = 14x

x = 9

Length is 6x - 15

6(9) - 15

54 - 15 = 39

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Lori rode her bicycle 19.5 miles in 3 hours. Which gives the best estimate of how far Lori road in 1 hour?

Answers

Lori rode her bicycle 19.5 miles in 3 hours.
let's estimate how far Lori road in 1 hour.
=> 19.5 miles in 3 hours = 19.5 to be divided by 3 hours
=> 19.5 / 3 = 6.5
Estimate
=> 20 / 3 / = 6.7

Answer:

6.7, i am trying to help but i am bad at math so if u get it wrong look at a pro answer

Step-by-step explanation:

Use estimation to chose the correct value for this expression 5.1 X 2

Answers

Answer:

10.2

Step-by-step explanation:

Answer:

Step-by-step explanation:

Change 161/4 to a mixed number

Answers

okay right off the bat, 161/4, so 16/4 is 4, plus the 1 is 40(forget the one).
So 40 1/4

the answer would be 40 and 1/4

Circle B has an area of 675 sq meters. What is the diameter of Circle B.

Answers

Answer:

$area = \pi {r}^(2)$

675= 3.14× r²

r²= 675/ 3.14

r²=214.968

$r = √(214.968)$

radius=14.66 meters

diameter= 2× radius

diameter= 2× 14.66

diameter = 29.32 meters

If 10 cm on a map represents 25 km of actual ground, how many centimetres would 45 km of actual ground be on a map?

Answers

Answer:

The answer would be 20cm.

I have $5$ different mathematics textbooks and $4$ different psychology textbooks. In how many ways can I place the $9$ textbooks on a bookshelf, in a row, if there must be a psychology textbook exactly in the middle, and there must be a mathematics textbook at each end?

Answers

Answer:

What

Step-by-step explanation:

You can’t have more than 2 combinations with £9

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