Answer:
175
Step-by-step explanation:
90 + 85 = 175
180 - 175 = 5
180 - 5 = 175 = x
~theLocoCoco
if I'm correct, 3 would be 78 as well . I'm so sorry if I get this wrong . I struggled a bit with this part and math a lot , and I only worked on it for like 2 days and then I had to test for it
The ice cube will be completely melted in 15 hours
Answer:
A. P = 14x+6
B. A = 12x^2 +9x
C. P = 118; A = 840
Step-by-step explanation:
A. The perimeter is twice the sum of length and width:
P = 2(L +W) = 2((4x+3) +(3x)) = 2(7x +3)
P = 14x +6 . . . . the perimeter of the rectangle
__
B. The area is the product of length and width:
A = LW = (4x +3)(3x)
A = 12x^2 +9x . . . . . the area of the rectangle
__
C. When x = 8, these values are ...
P = 14·8 +6 = 118 . . . . . perimeter in units
A = 12·8^2 +9·8 = 768 +72 = 840 . . . . . area in square units
