Answer:
54kg
Step-by-step explanation:
Body weight = B
Tail weight = T
Head weight = H
Total weight = F
Use equation = B + T + H = F
We are told that T = 9kg, H = T + (1/3) x B, B = H + T
We have 3 equations and 3 unknowns, solve the system of equations to find W.
B = H + 9
H = 9 + 1/3 x (H+9)=9+H/3+3 --> 2/3 x H = 12 --> H = 18
B = 18 + 9 = 27
F = 18 + 27 + 9 = 54kg
Answer: 2 step equations: x-12=4 and 3x=6. Equations that contain fractions: Equations with distributive property: 4x+2=2(x+6). One equation with decimals: 0.75X+25=50. Real world problem that is solved by an equation: Kelly intakes up to 2,000 calories per day. Today she ate breakfast which had 300 calories. For lunch she had 2 pb&j sandwiches with some chocolate milk on the side. That in total had 1,050 calories. When she had dinner she Intakes another 250 calories. For snack she had ice cream which was 150 calories with cookies. If each cookie had 50 calories how many cookies did she have?
Step-by-step explanation:
The images is where I showed all the work
<span>x^2 - 6x = 14
-6
divided by 2 =
-3
then squared =
9
</span><span>x^2 - 6x +9 = 14 +9
(x -3)^2 = 23
answer is B
Source:
http://www.1728.org/quadr2.htm
</span>
Answer:
(x - 6)(x + 4)(x - 2)
Step-by-step explanation:
since x = 6 is a root then (x - 6) is a factor
x³ - 4x² - 20x + 48 ÷ (x - 6)
= (x - 6)(x² + 2x - 8)
= (x - 6)(x + 4)(x - 2) ← factors of f(x)