20 should be the answer because 205 divided by 10 =20
Answer:
-2/-3
Step-by-step explanation:
(75, 60) (45, 40)
75 60 since 75 is larger than 45, we subtract = -30
45 40 since 60 is larger than 40, we subtract = -20
= -20/-30
reduce
= -2/-3
Answer:
The change in the area of the rectangle is 0 square feet
Step-by-step explanation:
To solve this problem we have to calculate the area of the two rectangles that give us
first we have to know the formula to calculate the area of a rectangle
a = area
l = length = 12ft
w = width = 5ft
a = l * w
we replace the known walues
a = 12ft * 5ft
a = 60ft²
we do the same with the other rectangle, but first we have to calculate its sides
w = 5ft - (5ft * 20/100)
w = 5ft - 1ft
w = 4ft
l = 12ft + (12ft * 25/100)
l = 12ft + 3ft
l = 15ft
a2 = 15ft * 4ft
a2 = 60ft²
to calculate the change in the area we subtract (a - a2)
a - a2 =
60ft² - 60ft² = 0ft²
Answer:
is there any data?
Step-by-step explanation:
the "given data" would really help
Answer:
A₍ₙ₎ = - 74 + (n-1) x 6
Step-by-step explanation:
A₍ₙ₎ = A₍₁₎ + (n-1) x d
A₍₁₈₎ = 28 = A₍₁₎ + 17 x d ..... (1)
A₍₄₀₎ = 160 = A₍₁₎ + 39 x d .....(2)
(2)-(1) 132 = 22d
d = 6
A₍₁₎ = 28 - 17 x 6 = -74
formula: A₍ₙ₎ = - 74 + (n-1) x 6
