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laila [671]
3 years ago
15

On a sunny day, a 4-foot red kangaroo casts a shadow that is 5 feet long. The shadow of a nearby

Mathematics
1 answer:
son4ous [18]3 years ago
8 0

Answer:

16 feet

Step-by-step explanation:

Set up a proportion where x is the height of the tree:

\frac{4}{5} = \frac{x}{20}

Cross multiply and solve for x:

5x = 80

x = 16

So, the tree is 16 feet tall

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3 0
3 years ago
-6+8x=-38<br> What is the answer and explain how you got it step by step
Anarel [89]
-6 +8x = -38
8x = -32
x = -4
I did this by first adding 6 to both sides to get 8x by itself. I then divided by 8 to get x by itself. I remembered to use the - - + rule (Two negatives make a positive, a positive and a negative make a negative). Hope this helps!
3 0
3 years ago
Read 2 more answers
Foxy used a calculator to evaluate (18+)x(49-39)-63•9 by entering C 18 +2*15-7
strojnjashka [21]
Ok what else before I can help
4 0
3 years ago
What is the equasion of the line that passes through (0,5) and (2,3)
Annette [7]

The equation for a line is mx + b = y where m is the slope and b is the y intercept. To find the slope, we need to use the equation m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}.


m = \frac{5 - 3}{0 - 2}


m = \frac{2}{-2}


m = -1


Therefore, m is equal to -1. Normally, we would then have to plug in m and one of the points to find b. However, because the point (0,5) is the y-intercept (the y-intercept is the point on the line where x is equal to 0), we can skip this step and go straight to forming the final equation, which is y=-1x+5.

3 0
3 years ago
Evaluate the expression 5x-3x for x = 2
Fantom [35]
-------------------------------------
Expression 
-------------------------------------
5x - 3x

-------------------------------------
Substitute x = 2
-------------------------------------
5 (2) - 3(2)
= 10 - 6
 = 4

-------------------------------------
Answer: 4
-------------------------------------
6 0
3 years ago
Read 2 more answers
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