1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Paraphin [41]
3 years ago
7

a tree casts a shadow 42 feet long.at the same time, a person 5 feet tall casts a shadow 7 feet long. what is the hight of the t

ree?
Mathematics
1 answer:
arlik [135]3 years ago
4 0

Answer:

height of the tree is 30 feet

Step-by-step explanation:

a tree casts a shadow 42 feet long . at the same time, a person 5 feet tall casts a shadow 7 feet long.

shadow of a 5 feet tall person is 7 feet long

Let x be the height of the tree

shadow of a 42 feet tree is x feet long

Make a proportion

\frac{x}{42} =\frac{5}{7}

cross multiply

7x=(42)(5)

7x=210

divide by 7 on both sides

x=30

So height of the tree is 30 feet

You might be interested in
How do you graph y=12/x
Tpy6a [65]

Answer: \frac{12}{x} is an asymptote

Step-by-step explanation:

Apply a table, and plug in values of x into the equation.  For example f(2)=\frac{12}{2} =6. That's one of the points on the graph that we just found (2,6)

7 0
1 year ago
HELP...here say:write five decimals that have at least 3 digits to the right of the decimal point.Write the expanded form and th
just olya [345]
27÷9=3
1+2=3
1×3=3
10-7=3
27-24=3
8 0
3 years ago
Is the point (4,2) the solution to the system? Why or why not? Explain your reasoning.
VMariaS [17]
Solve the top equation to get on variable on one side
2x-y=6
-y=-2x+6
y=2x-6
then plug in the coordinate for x and y for both equations. if both equations are true then it’s a solution
2=2(2)+6
2=10

4+2=6

so it’s not a solution
4 0
3 years ago
This is the example my teacher used. However, I still don't understand what makes the integers even or odd. I was hoping someone
kow [346]

Answer:

<h2>Here's what makes an integer odd:</h2>
  • It is NOT a multiple of 2.
  • When divided by 2, the quotient would be a decimal or have a remainder or fraction.

<h2>Here's what makes an integer even:</h2>
  • It is a multiple of 2.
  • When divided by 2, the quotient has a whole number.

<em>The odd numbers from one to 10 are: 1, 3, 5, 7, 9.</em>

<em>The even numbers from one to 10 are: 2, 4, 6, 8, 10. </em>

  • With big numbers, if it ends with any of the odd numbers from one to ten, listed above, it would be odd. This goes for the same with even.
<h2>With the x + 2, x + 4, etc:</h2>
  • An odd number and even number has a pattern....

[odd, even, odd, even, odd...] [1, 2, 3, 4, 5]

  • So, if x was an odd number, adding it by 2, 4, 6, etc. will result in another odd number.

Here's an example:

x= 17\\x + 2 = ?\\(17) + 2 = 19

<em>See how x is an odd number and the sum of the number and two makes another odd number? </em>

The same can go with an even number:

x=2\\x + 6 = ?\\(2) + 6= 8

<em>See how x is an even number and the sum of the number and six makes another even number? </em>

I hope my answer helps you understand even and odd numbers.

6 0
3 years ago
Ben earns $12,800 a year. About 15% is taken out for taxes. How much is taken out for taxes?​
lesya692 [45]

Answer:

$10880

Step-by-step explanation:

12800-15%=10880

5 0
3 years ago
Other questions:
  • Find the next two terms in this sequence 10, 40, 160, __, __
    14·2 answers
  • Write a fraction, less than 1 with a denominator of 6 that is greater than 3/4
    10·1 answer
  • I need help solving these.
    8·2 answers
  • Given f (x) = x2 + 7, evaluate f (4).
    11·2 answers
  • How do I factor this equation fully?
    6·1 answer
  • Can y’all please help me? :,)
    11·1 answer
  • <img src="https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B5%7D%20%3D%20%5Cfrac%7B10%7D%7B2%7D" id="TexFormula1" title="\frac{x}{5} = \f
    15·1 answer
  • Tom drives 200 miles in 4 hours.
    13·2 answers
  • Suppose you invest $150 a month for 3 years into an account earning 7% compounded monthly. After 3 years, you leave the money, w
    14·1 answer
  • Which are examples of numerical data sets? Choose all that apply.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!