X=weight of large box
y=weight of small box
so
3x+5y=135 and
9x+7y=279
eliminate x's
multiply first equation by -3 and add to 2nd
-9x-15y=-405
<u>9x+7y=279 +</u>
0x-8y=-126
-8y=-126
divide both sides by 8
y=15.75
sub back to find x
3x+5y=135
3x+5(15.75)=135
3x+78.75=135
3x=56.25
divide both sides by 3
x=18.75
each large box weighs 18.75kg
each small box weighs 15.75kg
To find the probability of landing on a triangle, you will want find the combined areas of the triangles and the total area of the square target.
Divide the area of the combined areas and the total area to find the probability of landing on a triangle.
A = 1/2bh
1/2 x 8 x 8
A = 32 square inches
32 x 4
128 square inches (areas of triangles)
A = bh
26 x 26
A = 676 square inches
128/676 = 0.189
There is an approximate probability of 0.19 of hitting a triangle.
The volume (when x = 10) would be 1,000 cubic units (10^3).
Answer: 11 possible outcomes
This is all the possible outcomes
1,5 2,5 3,5 4,5 5,5 6,5 5,1 5,2 5,3 5,4 5,6
The amount of at least one dice having a 5 is 11
Use formula 2(n) - 1
2(6) - 1 = 11
Hope this helps ^_^
Answer:
So a square is a special kind of rectangle, it is one where all the sides have the same length. Thus every square is a rectangle because it is a quadrilateral with all four angles right angles. However not every rectangle is a square, to be a square its sides must have the same length.
Hope this helps!