MATHEMATICS MIDDLE SCHOOL

If the floor of a square office is 256 square units, what is the perimeter of the office?

Answers

Answer 1

Answer:

Square have 4 equal sides length = a

A = 255

A = a^2

255 = a^2 |sqrt

15 = a

P = 4a

P = 4*15 = 60

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A cylinder has a base diameter of 18ft and a height of 16ft. What is its volume in cubic ft, to the nearest tenths place?

Answers

Answer:4073 cubic feet

Step-by-step explanation:

VOLUME OF A CYLINDER

V=Πr²h

radius = diameter/2 =18/2 =9ft

V= 22/7 × 9² × 16

=28512/7

=4073.14

V= 4073 cubic feet to the nearest tenth

Explain how am estimate helps you to place the decimal point when multipling 3.7 X 5.1

Answers

well 3.7×5.1 put the decimals at the end so 37×51=1887 there is 2 decimals so it should be 18.87 you put it back 2 spaces since there's 2 decimals

Since 3*5=15, then the answer to 3.7*5.1 should be close to that same value. But if you were solving it by hand, and accidentally wrote the answer as 1.887 or 188.7. Estimating helps you know that you placed the decimal in the wrong area, Since the number isn't close to 15.3.7*5.1+18.87

I'm a little bad in math can you plz help me :Shelly has a ribbon that is 52 feet 6 inches long. She wants to cut the ribbon into 7 pieces of equal length. How long should each piece of ribbon be?

F. 7 ft 0 in.
G. 8 ft 2 in.
H. 7 ft 6 in.
J. 8 ft 3 in.

Answers

It's alright! everyone is bad at something :) so all you have to do is divide 52feet and 6inches by 7 inches which will give you 7.5

Answer:

H.7 ft 6

Step-by-step explanation:

Graph this system of equations. Sorry about all the writing

Answers

what equation. Can u plz make it clear. (0,2) and (0,0)

A rectangular poster has an area of 22 square feet. It is 3 and two thirds feet wide at its base. What is the height of the poster?

Answers

A=area=22
sq ft; L=length;
W=width=3 2/3 ft
3 2/3 ft=11/3 ftA=L*WA/W=L
22sq ft/(11/3)ft=L
6ft=L
So the length (height) of the poster is 6 feet.

the height of the poster is 66 feet

i hope i helped

Is this correct. if it is how do I put 2 10/25 as minutes and if wrong tell me how to do it

Answers

yes that is the answer

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