Answer:
12 feet
Step-by-step explanation:
Draw a diagram (see picture below). The tree and its shadow is one triangle, the man and its shadow is another triangle. We assume both are right triangles because people and trees stand vertical.
Create a proportion to solve. Put the missing value in a numerator.
Tree height / Tree shadow = Man height / Man shadow
Solve using cross multiplication. Multiply x by 4. Multiply 6 by 8.
4x = 48 Divide both sides by 4 to isolate x.
x = 12 Height of tree
The tree is 12 feet tall.
Answer:
Mean=16.5
Median=9.5
Step-by-step explanation:
Answer:
Sorry im not sure on this one...
Step-by-step explanation:
Answer:
I think it's c
Step-by-step explanation:
because a*1=1
All of the other statements are incorrect because for one a+0=0 Only 0 can = 0
A*0=1? A number times 0 is always going to be zero
A+1=1? Only 0 is the only number that a number plus 0 is the same number
To solve this problem you must apply the proccedure shown below:
1. Let's call to the number of equipment operators and to the numbers of laborers.
2. Based on the information given in the problem above, you can make a system of equation, as following:
3. By applying the method of substitution, you can solve for from the second equation and substitute it into the first equation to solve for , as following:
4. Now, substitute the value of into the second equation to calculate :
The answer is: 19 equipment operators and 13 laborers.