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fenix001 [56]
3 years ago
13

A 20 foot long flag pool casts a 8 foot long shadow. At the same time the oak tree casts a 12 foot shadow. How tall is Is the oa

k tree?
Mathematics
1 answer:
Orlov [11]3 years ago
3 0
It depends on where the sun is but the answer is 22 but my math could be wrong
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Quick plz help asap marking brainliest for first answer as long as you include steps !!!
Akimi4 [234]

Answer:

a=2.48

c=9.52

Step-by-step explanation:

a+c=12

4a+7.5c=72.5 Given


a+c=12

-4a-7.5c=-72.5 multiply the equation by negative 1


-3a-6.5c=-60.5 simplify


-3a=-60.5+6.5c add 6.5c to both sides


a=-20.17+2.17c divide it by 3

now you would take that equation and plug it into an equation you already have since you have something to plug in for a, the easiest one to do is a+c=12

(-20.17+2.17c)+c=12 plug in the equation


-20.17+3.17c=12 simplify by solving for c


3.17c=30.17 add 20.17 to both sides


c=9.52 divide both sides by 3.17

now since you have found c, you can plug it in to you equation to solve for a now (use the ones from the second step).  I am using the equation a+c=12.

a+9.52=12 plug in the variable and solve for a


a=2.48 subtract 9.52 to both sides


a=2.48

c=9.52

7 0
3 years ago
How do you simplify 3(j-2k)+4 ?​
masha68 [24]

Answer: 3j-6k+4

Step-by-step explanation:

First you have to distribute the 3 to the j and the -2k since they are both in the parentheses. So it would look like (3*j) +(-2k*3)+4 and if you simplify that it is 3j-2k+4. After that there are no like terms so that is your answer.

5 0
2 years ago
Horizon Building Company is constructing a new office building. They have 5,176 ceiling tiles. The office building will have nin
slavikrds [6]

Answer:575 and 1 extra tile

Step-by-step explanation:if the total tiles is 5,176 which will be used in 9 floors .We will divide the total tiles by the floors .Therefore we will get 5176 /9 =575.111

Therefore each floor will have 575 tiles

To get the remaining tiles

575*9 = 5175 which gives us a remainder of 1 tile when you subtract the total 5176 -5175 =1

5 0
2 years ago
Solve for g: 5=5g+5h<br> Show all your work please.
natka813 [3]
5 = 5 (g + h)
1 = g + h
1 - h = g
g = 1 - h

Answer: g = 1 - h.

5 0
3 years ago
1/2 x -41 <br> x=10<br><br> Simplify the answer
Darya [45]
If I'm interpreting this right, it's -36 since a half times ten is 5... so it comes down to 5-41 which equals -36.
6 0
2 years ago
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