Answer:
1.25b+0.75c=23
Step-by-step explanation:
1.25 for each bag of chips and 0.75 for each bag of candy.
Sign. 4 ft. 1ft shadow
Pole. Xft. 5ft shadow
X=4•5/1
X=20 ft
Flag pole is 20 ft tall
-4x + 3y = 6
-4x + 4x + 3y = 6 + 4x
<u>3y</u> =<u> 6 + 4x</u>
3 3
y = 2 + 4/3x
-4x + 3(2 + 4/3x) = 6
-4x + 6 + 4x = 6
-4x + 4x + 6 = 6
0x + 6 = 6
<u> -6 -6</u>
<u>0x</u> = <u>0</u>
0 0
x = 0
-4(0) + 3y = 6
0 + 3y = 6
<u>+0 +0</u>
<u>3y</u> = <u>6</u>
3 3
y = 2
(x, y) = (0, 2)
A regular triangle is a triangle with 3 equal sides. A perimeter of a triangle with 3 sides = 3 x length = 3 (length). Since you know that the perimeter is also equal to 18x + 27, therefore,
3 (length) = 18 x + 27
length = (18x + 27) / 3 <-- divided both sides by 3
length = 6x + 9
An expression for the length of one of its sides is 6x + 9.
