Answer:
b = (-3)/2
Step-by-step explanation:
Solve for b:
(-10 b)/3 = 5
Multiply both sides of (-10 b)/3 = 5 by -3/10:
(-3 (-10) b)/(10×3) = (-3)/10×5
(-3)/10×(-10)/3 = (-3 (-10))/(10×3):
(-3 (-10))/(10×3) b = (-3)/10×5
(-3)/10×5 = (-3×5)/10:
(-3 (-10) b)/(10×3) = (-3×5)/10
(-10)/10 = (10 (-1))/10 = -1:
(-3-1 b)/3 = (-3×5)/10
(-3)/3 = (3 (-1))/3 = -1:
--1 b = (-3×5)/10
(-1)^2 = 1:
b = (-3×5)/10
5/10 = 5/(5×2) = 1/2:
Answer: b = (-3)/2
Answer:
400 square yards
Step-by-step explanation:
square part = l x w = 20 x 15 = 300
triangle part = 1/2 b x h = 1/2 (20) (10) = 100
300 + 100 = 400
Answer:
Width=13cm
Length=18cm
Step-by-step explanation:
Width of the Initial Photograph=9cm
Length of the Initial Photograph=14cm
If width and length are increased by an equal amount, say x
New Width=9+x
New Length=14+x
Area of the new photo is 108 square centimeters greater than the area of the original photo.
Area of Original Photo=14*9=126cm²
Aeea of the New Photo=126+108=234cm²
Therefore:
(9+x)(14+x)=234
126+9x+14x+x²-234=0
x²+23x-108=0
x²+27x-4x-108=0
x(x+27)-4(x+27)=0
(x+27)(x-4)=0
x+27=0 or x-4=0
x=-27 or x=4
Since x≠-27
x=4cm
The dimensions of the new photo are:
Width=9+x=9+4=13cm
Length=14+x=14+4=18cm
Answer:
3 9/10
Step-by-step explanation:
in first step convert mix fraction into simple fraction then take LCM and then subtract it.
I multiplied $15 by 230% and then added my answer(which was 34.5) because subtracting it wasn't an option and got $49.50
