Answer:
yes because 10 groups 27 taking 1 group of 27 is now 9 groups of 27
10*27-27=243 is equal to 9*27=243
Answer:
Step-by-step explanation:
- 1) Total points = 25
- 2) Points earned = 21
- 3) Percent score = 84%
<u>Proportion:</u>
Solving the others in the table
<u>21 out of 25 points:</u>
- 21/25 = x/ 100 ⇒ x = 100*21/25 = 84
<u>15 out of 20 points:</u>
- 15/20 = x/100 ⇒ x = 100*15/20 = 75
<u>47 out of 50 points:</u>
- 47/50 = x/100 ⇒ x = 100*47/50 = 94
<u>28 out of 30 points:</u>
- 20 / 30 = x/100 ⇒ x = 100*20/30 = 66.66
<u>19 out of 45 points:</u>
- 19/45 = x/100 ⇒ x = 100*19/45 = 42.22
<u>3 out of 4 points:</u>
- 3/4 = x/100 ⇒ x = 100*3/4 = 75
3 1/2 equals 28/8 and if you divide you get 5.6 books
<h2>Dimensional Analysis</h2><h3>
Answer:</h3>
is 
if written in 
- is
if written in 
<h3>
Step-by-step explanation:</h3>
Rewriting 
in 
:
Rewriting in 
:
in :
Answer:
Step-by-step explanation:
Area of wall = lh + lh + bh + bh = 2lh + 2bh = 2h *(l + b)
Area of ceiling = lb
Area of wall and ceiling = 2h(l +b) + lb
= 2*8* (20 +15) + 20*15 = 16*35 + 20*15
= 560 + 300 = 860
Cost of painting per m^2 =20/10 = 2
Cost of painting 860 m^2 = 860 * 2 = 1720
Volume = l * b *h = 20 * 15 * 8 = 2400 m^3
