Answer:
Step-by-step explanation:
<span> Make sure you cross multiply and divide to solve your proportions. 10 x 10=100 and 100/8 =12.5. So n=12.5........... </span>
1. Let
Shortest piece = x
Longest piece = y
Third piece = z
2.
Shortest piece = x
Longest piece = 40 + x
Third piece = (40 + x)/2 OR 20 + 0.5x
3. Add all the expressions since you know that the total of all the pieces is 120 inches
40 + x + 20 + 0.5x + x = 120.
4. Add the whole numbers first, then add the variables.
40+20=60
x+0.5=2.5x
60+2.5x=120
5. To get rid of the 60, do the opposite of addition which is subtraction and subtract 60 from both sides.
2.5x=120-60
2.5x=60
6. Do the same but rather than addition, do the opposite of multiplying which is dividing, on both sides.
x=60/2.5
x=24
7.
Shortest piece = 64-40=24 inches
Longest piece = 24+40=64
Third piece = 64/2=32
Answer:
3084 sq. ft
Step-by-step explanation:
for the first three rooms,
area= 6l² = 6× 17² = 1734
for the next two rooms,
area= 6l² = 6×15² = 1350
total area = 3084
Answer:
m>11
Step-by-step explanation:
2(m+3)<-5+3m
2(m+3)>3m-5
2m+6>3m-5
6<3m-5-2m
6<m-5
6+5<m
11<m
m>11