Answer:
B x=-6
x=2
Step-by-step explanation:
Answer:
-8
Step-by-step explanation:
(x-3y=136) + (18x+3y=288) We collect both processes to make y's disappear
19x=-152
x=-8
Answer:
Area = 27 cm²
Step-by-step explanation:
let L be the length of the rectangle
w the width
P the perimeter
A the area
<u>Formulas</u> :
P = 2×(L + w)
A = L × w
<u>We are Given</u> :
L = 3w
P = 2×(L + w)
⇔ 24 = 2×(3w + w)
⇔ 24 = 2×4w
⇔ 24 = 8w
⇔ w = 24/8 = 3
Then
L = 3w = 3×3 = 9
We obtain L = 9 and w = 3.
Then
A = L × w
= 9 × 3
= 27
I hope this helps you
Perimeter =2 (width +length )
324=2 (67+length )
162-67=length
length =95
Answer:
32z-14
Step-by-step explanation:
2(9z-8)+2(7z+1)
18z-16+14z+2
simplify
32z-14
