Answer:
x = (z + 3y) / 20
Step-by-step explanation:
20x - 3y = z
+3y +3y
-----------------------
20x = z + 3y
/20 /20
-----------------------
x = (z + 3y) / 20
Doing 2 strategies at one time or in a certain order
Answer:
S.A. = 1,017.36
Step-by-step explanation:
S.A. =
12 x 12 x 3.14 = 452.16
3.14 x 12 x 15 = 565.2
565.2 + 452.16 = 1,017.36
Answer:
Length= 30 in
Width= 10 in
Step-by-step explanation:
Let the width of the rectangle be x in.
Length of rectangle
= 3 (width)
= 3x
Perimeter of rectangle= 2(length) +2(width)
80= 2(3x) +2(x)
80= 6x +2x
8x= 80 <em>(</em><em>simplify</em><em>)</em>
x= 80 ÷8 <em>(</em><em>÷</em><em>8</em><em> </em><em>on</em><em> </em><em>both</em><em> </em><em>sides</em><em>)</em>
x= 10
Thus width of rectangle= 10 in
Length of rectangle
= 3(10)
= 30 in