Hi! :)
This question states that four families each brought the same number of chairs. We know that 27 chairs are needed overall and 3 are still needed after the four families' contributions.
Knowing this, you can figure out that you could do 27-3. This equals 24, so you would then just divide 24 by 4, since there are 4 families.
Your final answer should be that each family brought 6 chairs.
Hope this helps!
First write the equation:
#1- <span>six spools and one thimble balance thirteen buttons: 6</span>S+1T=13B
#2- <span>one spool balances one thimble and one button: 1S=1T+1B
Take the first equation and make it so you can substitute it in the second so we look for an alike variable 1T so the first equation is rearranged like this 1T=13B-6S Then we place it in the second equation like this:
1S=(13B-</span>6S)+1B then we simplify
1S+6S=13B+1B
7S=14B
S=7B
So one spool will balance seven buttons
hope it helps any questions further message me :)
Answer:
Refer to the attachment and sorry for bad handwriting, it's 3:51 am here, In India
Answer:
20x
Step-by-step explanation:
Part 1: Circumference of circle =
inches & Area of circle =
Part 2: Area of circle = 
Part 3: Area of square not covered by circle =
.
<u>Step-by-step explanation:</u>
<u>Part 1:</u>
We have radius of circle as
. Let's find area & circumference of circle:
Circumference of circle =
⇒ Circumference of circle =
⇒ Circumference of circle =
= 
⇒ Circumference of circle =
inches
Area of circle = 
⇒ Area of circle= 
⇒Area of circle =
= 
⇒ Area of circle =
<u>Part 2:</u>
Circumference of circle =
= 
⇒ 
⇒ 
Area of circle = 
⇒Area of circle =
= 
⇒ Area of circle = 
<u>Part 3:</u>
Perimeter of square =
, a is side of square.
⇒ 
⇒ 
⇒ a = 
Since radius of circle inscribed in square is half of side of square i.e.


Now, Area of square not covered by circle = Area of square - area of circle
⇒ 
⇒ 
⇒ 
∴ Area of square not covered by circle =
.