The ratio of green food coloring to blue food coloring is 1:2. we used 6 drops of blue. how many total drops of food coloring di
2 answers:
Answer
Total 9 drops of food coloring did we use
Step-by-step explanation:
Let the number be x.
As per the statement:
The ratio of green food coloring to blue food coloring is:
1 : 2
number drops of green = x
number drops of blue= 2x
It is also given that:
we used 6 drops of blue.
⇒
Divide both sides by 2 we have;
x = 3
We have to find how many total drops of food coloring did we use.
Total number of drops = x+2x = 3x
⇒Total number of drops = 3(3) = 9
Therefore, 9 total drops of food coloring did we use
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9514 1404 393
Answer:
7 square units
Step-by-step explanation:
There are several ways the area of triangle EBD can be found.
- find the lengths EB, BD, DE and use Heron's formula (messy due to roots of roots being involved).
- define point G at the lower left corner and subtract the areas of ∆DEG and BCD from trapezoid BCGE.
- figure the area from the coordinates of the vertices.
- use Pick's theorem and count the dots.
We choose the latter.
__
Pick's theorem says the area of a polygon can be found as ...
A = i + b/2 -1
where i is the number of grid intersection points interior to the polygon, b is the number of grid points intersected by the border.
The attached figure shows the lines EB, BD, and DE intersect one point in addition to the vertices. So, b=4. A count of the red dots reveals 6 interior points (i=6). So, the area is ...
A = 6 + (4/2) -1 = 7
The area of ∆EBD is 7 square units.
