12x + y = 4
the equation of a line in standard form is
Ax + By = C
where A is a positive integer and B, C are integers
given y = - 12x + 4 ( add 12x to both sides )
12x + y = 4 in standard form
For the pencil shaped shape, we need to split the shape up in 2 parts (which has already been done!). Lets figure out the rectangle first. To find the area of a rectangle it is Length x Width.
a=lxw
a=6x10
a=60m2
(the m2 means square meters)
For the triangle the formula is Base x Height <span>÷ 2
a=bxh</span><span>÷2
a=7x6</span><span>÷2
a=42</span><span>÷2
a=21m2
Now we just add up the rectangle and triangle area and voila! You have the area!
21+60=81m2
The area of the shape is 81m2</span>
The answer should be C. Examples of mixed numbers: 1 2/3; 3 6/7; 2 12/18. Hope this helps. Note: If I’m right can I have brainliest ?
Answer:
Speed of boat x = 84 km/hr
Speed of current = 12 km/hr
Step-by-step explanation:
Let 'x' be the speed of boat and 'y' be the speed of still water
Upstream speed = x - y and
Downstream speed = x + y
It is given that, A motorboat travels 180 km in 3 hours going upstream and 504 in 6 hours going downstream
Upstream speed = x - y = 180/3 = 60 km/hr
Downstream speed = x + y = 504/6 = 84 km/hr
<u>To find the value of x and y</u>
x + y = 84 ----(1)
x - y = 60 ----(2)
(1) + (2) ⇒
x + y = 84 ----(1)
<u>x - y = 60 </u> ----(2)
2x + 0 = 144
x = 144/2 = 72
x + y = 84
y = 84 - 72 = 12
Therefore speed of boat x = 84 km/hr
Speed of current = 12 km/hr
Yes it can it can form a 90 degree angle