Let's solve this by substitution.
y is given by the 2nd eqn as y = (1/3)x + 7. Subst. (1/3)x + 7 into the first eqn as a replacement for y: x + 9( (1/3)x + 7) = 3.
clear out fractions by mult. all 3 terms by 3: 3x + 9x + 63 = 3
Combine like terms: 12x = -60. Then x = -5
Find y by subst. -5 for x in the 2nd equation: y = (1/3)(-5) + 7
= -5/3 + 35/3 = 30/3 = 10.
Thus, the solution (x,y) of this system is (-5,10).
Start here: A = 18 ft^2 = L * W. Next, L = 2W.
Merging these 2 formulas lets us eliminate L:
18 ft^2 = (2W) * (W) = 2W^2.
So W^2 = 9 ft^2, and W=3 ft. Please use L = 2W (from above) to calculate L.
The answer is C based on SAS
Answer:
C.
Step-by-step explanation:
14/3 = 4.7 which seems about right for the Y-intercept & the gradient is - 1/3.
Gradient = rise /run
= 1/3
Hope this helps!
Answer:
Happy Earth Day to u too.
Step-by-step explanation:
1) Plant a sapling
2) Draw a poster related to Earth Day
3) Color a picture of the Earth/ tree
4) Decorate ur room with plants
5) Prepare a speech on Earth Day
6) Do T-shirt designing with Earth as a design
7) Buy a paper/ cloth bag
8) Recycle what u use
9 Avoid plastic
10) Use bikes or walk instead of vehicles
