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3 years ago

A side of square A is halved to create square B. If the area of square B is x, what is the area of square A?

Mathematics

1 answer:

riadik2000 [5.3K]3 years ago

5 0

If I'm understanding correctly, the answer would be x2 .

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help. If 20 men can survive for 24 days on 15 cans of rations, how many cans will be needed for 16 men to survive for 36 days?

Semmy [17]

Answer: 29 cans.

Step-by-step explanation:

20 can survive 24 days with 15 cans.

If X is the number of days that a man can survive with one can of rations.

so X is in the units can/day

then we have that:

24/15*X = 20

X = 20*15/24 = 12.5

This means that a man can live 12.5 days with a can of food.

then, for 16 men and 36 days we have:

(36/C)*12.5 = 16

C = (36/16)*12.5 = 28.1215

And we can not have a 0.1215 of a can, so we should round it up to 29 cans.

4 0

3 years ago

The restaurant in the Space Needle in Seattle rotates at the rate of one revolution per hour. (Round your answers to two decimal

Natalija [7]

A) 130 mins = 2 hours 10 mins or 2 and 1/6 hours... so 2 and 1/6 revolution. and 1 revolution is equal to 2*pi radians
ANSWER: 13/6 (2 and 1/6) * 2*pi = 13.6 radians 

b) 8/13.6 = x/(13/6) so x = 0.2715 hours or 16 and 1/3 minutes 

c) if the restaurant is 21 meters, the radius is 10.5 meters, and the circumference is 2*pi*r so circumference = 65.97 meters. 

2 and 1/6 revolution is going around the circumference 2 and 1/6 times, so simply multiply 65.97 by 13/6 

ANSWER: about 143 meters

8 0

4 years ago

(12,-12), (18,2), (12,6), (20,5) A. Function B. Not a function

Alex Ar [27]

B. Not a function. 12 repeats twice.

8 0

3 years ago

Givin the area of a square is 225 square feet, what is the length of each side

Romashka [77]

The area of a square is calculated by squaring the length of the sides (multiplying by itself). Therefore, in order to find the length, you must find the square root of 225.

The square root of 225 is 15. Therefore, you length of each side is 15 feet.

p.s. I don't know how old you are, but I would recommend trying to memorise your square numbers up to $17^{2}$ . I know I found that incredibly useful when it came to my exams last year (GCSEs)

7 0

4 years ago

Read 2 more answers

Use inequality symbol to compare -3 + 7--------10 - 2

melisa1 [442]

$-3+7=4$

$-10-2=-12$

$4>-12$

5 0

3 years ago

Read 2 more answers