Charles decides to use the method of proportions and similar
triangles to find the height of a lamppost. He measures the length of
the post's shadow and finds it is 10 feet long. Then he holds a 12-inch
ruler perpendicular to the ground and finds that it casts a 4-inch
shadow. How tall is the lamppost?
a. 2.5 ft c. 30 ft
b. 4.8 ft d. 120 ft

Answers

Answer 1

Answer:

C. 30 ft.

Step-by-step explanation:

10 = x

12 = 4

Divide by 4

1inch shadow = 3 inches height

1 inch of a shadow is 3 inches

10 feet is 120 inches

120 * 3

360 inches height = 30 ft

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Answer 2
I think it might be A. Since sometimes shadows can come off longer than the actual object.

Related Questions

Two points in a transformation are J'(-2, 5) and J'(0, 4). which of the following translations was used?

a. (x+2, y-1)
b. (x-2, y+1)
c. (x-2, y-1)
d. (x+2, y+1)

Answers

the answer is a-(x+2, y-1)

Henry divided his socks into five groups. Let s represent the total number of socks. Which expression and solution represent the number of socks in each group if s=20?

A. S/5; when s=20, the number of socks in each group is 4.


B. S/5; when s=20, the number of socks in each group is 15.


C. S-5; when s=20, the number of socks in each group is 4.


D. s-5; when s=20, the number of socks in each group is 15.

Pls help

Answers

Answer:

A

Step-by-step explanation:

If Henry has 20 socks and he split them into a group of 5, he would have 4 socks in each group. To solve this equation you must divide the number of socks by the number of groups. Once you do this, you will get the number of socks in each group.

Answer:

a

Step-by-step explanation:

Find the measures of the interior angles.

Answers

Answer:

The two angles are 39°

Step-by-step explanation:

180 - 102 = 78. 78/2 = 39.

Answer:

x=39

Step-by-step explanation:

We know that three angles combine has equal 180 degrees.

180-102=78

78/2=39

I subtracted 102 from 180 to know the degrees of the rest of the two angles combine, then divide the 78 by 2 to find the angles of the individual angles.

Hope this helped you : )  

The product of a number and -3, increased by 8 is 20. I need help. >:

Answers

Answer:

-4

Step-by-step explanation:

-3(x)+8=20

-3x=12

x=-4

Which equation has the solution x = 9?


Select EACH correct answer.


4 + 5x = 18

24−2x=13

x3+7=8

2x−3=15

3x + 2 = 25

81x−3=6

Answers

Answer: The corect ones are 81/x - 3 =6 and 2x - 2 = 15

If i am correct please consider giveing me brainliest :)

have a good day:)

what she said lollll

Jeffrey had both chocolate cake and coconut cake at his birthday party. There were 25 people at the party, and 20 of them picked chocolate cake. What percentage of the people at the party picked chocolate cake?

Answers

Answer: 555555

Step-by-step explanation:

55555

Using your long division algorithm, show how 3/4 and .75 are equal.
Please and thank you. Also, Happy Thanksgiving everyone!
- Arina Brooks-

Answers

Answer:

[tex] \frac{3}{4} = 0.75[/tex]

Answer: 3/4 = 0.75

Working out: 3/4 = 3 divided by 4
3 divided by 4 = 0.75

All the fudge machines at a chocolate factory work at the same rate. Six machines working simultaneously can complete a big order in 22 hours.

How many hours would it take to fill the order if the number of working machines increased by a factor of 2?

Answers

Answer:

11

Step-by-step explanation:

Please answer the following essay question:

Explain why we need to have a common denominator in order to add or subtract fractions.

Answer in paragraph form using complete sentences and include any calculations, graphs, and labeled diagrams as appropriate.

Answers

Answer: The denominator of a fraction tells you the relative size of the pieces. Therefore, the reason fractions need a common denominator before adding or subtracting is so that the numbers of pieces you are adding/subtracting are all the same size.

Answer:

We need to have a common denominator in order to subtract different fractions because if we have an example like.

5/2 - 6/8 we cannot do that because the denominator is not alike.

We have to use multiplication to help us here.

2 x 8 = 16 !

So. no we have 5/16

so now we do 5 x 8 = 40

So now my new fraction is - 40/16 BUTTTT 40/16 is an improper fraction. so 40/16 = 5/2

Now we are back at the square 1 so now we have to fix 6/8.

8 x 6 = 48

6 x 6 = 36.

--

2 x 24 = 48.

5 x 24 = 120 or 12

now we have 12/48 and  36/48.

We can subtract now!

Hope this helped for problems like this.

What is the answer I dont understand.

Answers

Answer:

A = (0.5, 4)

B = (-3, 0)

C = (-1, 1)

Step-by-step explanation:

I hope this helped and if it did I would appreciate it if you marked me brainliest. Thank you and have a nice day!

Answer:

A=(.5,4)

B=(-3,0)

C=(-1,1)

Step-by-step explanation:

Clara opened a bank account. She deposited $95 each month for 10 months. Her bank charged her $2 each month to use the account. How much money is in Clara's account after 10 months?
A. $75
B. $970
C. $93
D. $930.
{Please give the most accurate and correct answer. I will reward with brainliest if so.}

Answers

Answer:

930$ I belive hope this helped if it did plz leave a brainliest

Step-by-step explanation:

D. 930
95•10=950
2•10=20
950-20=930

Eight pipes were turned on to fill the pool in 36 hours. Then, after 12 hours some of the pipes were turned off, and the rest of the pool was filled in 32 hours. How many pipes were turned off?
Please show your work

Answers

Answer:

4 pipes (im pretty sure)

-but i hope this was correct and if not i hope it at least helped have a good rest of your day :)

Step-by-step explanation:

because 36 - 32= 34

6 or 7 i would think. hope that helps.

Think about how you can use absolute value notation to express the distance between two points on a coordinate graph. For each pair of points below, find the distance between the given points and express your work using absolute value symbols. Explain How you solved it.

(4, 9) and ( –5, 9)

Answers

The answer is on your other copy of this same problem.

(-5, -1, 10, -9)
on the number line.

Answers

-9,-5, -1, 10 is the right order

Select the correct answer. Bryan works as a florist. The number of bouquets he makes is given by the equation , where b is the number of bouquets and h is the number of hours. How many hours would it take him to make 6 bouquets? A. 6 B. 8 C. 12 D. 18 E. 24

Answers

Answer:

c

Step-by-step explanation:

Find the quotient of 4.13x10^4 and 0.04x10^5. In two or more complete sentences, explain each step in your calculations. Include the quotient as part of your final answer.

bro i will give brainly to the correct answer

Answers

Answer:

4.13X10^3= 4130 0.04x10^5=4000

Step-by-step explanation:

first I multiplied 10 three times and got 1000 after that i did 4.13x1000 to get 4130.

(Second part)

Firstly I multiplied 10 five times and got 100,000. After i got that i multiplied 0.04x100,000 and got 4000.

answer correct and you get brainlyest
5- 3/14= ?

Answers

5- 3/14= 4.25 you have to subtract right??

Answer:

4 11/14

Step-by-step explanation:

Follow PEMDAS order of operations ( Since its only 1 equation just do what the equation is asking you to do which is subtract)

5-3/14 = 5/1 - 3/14 = 70/14 - 3/14

= 67/14

= 4 11/14

Hope this helps!!!

4. Wilfredo buys 2/5 pound of mixed nuts for $2.50. at this rate how many pounds of mixed nuts can he buy for $10

Answers

Answer: Wilfredo can buy 1 3/5 pounds of Mixed Nuts for $10

Step-by-step explanation:

2/5*4=8/5

$2.5*4=$10

8/5=1 3/5 pounds for $10

Sorry you have the answer so I’m gonna steal points sorryyyy

The shaded area of the picture shows what part of the yard Rashon mowed in 15 minutes. He wonders how long it will take him to mow the whole yard.

How long will it take Rashon to mow the entire yard?


30 mins.




60 mins.



90 mins.

180 mins.

Answers

Answer:60

Step-by-step explanation:

60 because I’m big brain

Burger Town sells cheeseburgers for $7.95 each plus an additional $1.00 for each extra topping, t. Write an equation that best represents the cost, c, of a cheeseburger?

Answers

8.95$ would be the answer

Answer:

7.95 + 1.00 = 8.95\

Step-by-step explanation:

question: Simplify the following Inequality:
r − 12/−9 > −2

A.
r -30

Answers

Answer:

A

Step-by-step explanation:

r-30

How the Right of Occupancy can be transferred or exchanged.

Answers

Answer:

wha...?

Step-by-step explanation:

Quadrilateral Q’R’S’T is a dilation if quadrilateral QRST, with the origin as the center of dilation.

What appears to be the scale factor used to create this dilation?

4

0.5

2

0.25

Answers

0.5 I think I hope I’m right

HURRY FOR BRAINLIEST
Peter has a collection of 65 action figures. 15% of them are superheroes, 12% are aliens, 33% are monsters, and the rest are soldiers. How many of Peter’s action figures are soldiers?

Answers

Answer: 32

Step-by-step explanation:

The answer is 32. Hope that helps

Which answer choice correctly identifies the extraneous information in the problem?Samuel is 10 years old. He mowed the neighbors lawn on Saturday and earned $40. It took him 4 hours to mow the lawn and 2 hours to clean his room. How much money did Samuel earn an hour?A. The extraneous information is Samuel earned $40 and it took him 4 hours to mow the lawn.B. The extraneous information is Samuel took 4 hours to mow the lawn and 2 hours to clean his room.C. The extraneous information is Samuel is 10 years old and earned $40.D. The extraneous information is Samuel is 10 years old.

Answers

Answer:

D

Step-by-step explanation:

no reason for the question to include his age

Answer:

The extraneous information is Samuel is 10 years old.

Step-by-step explanation:

You don't need Samuel's age to solve the problem you only need the amount and the hours to answer the question. So, the answer would be D, The extraneous information is Samuel os 10 years old.

A truck travels 2,400 miles in 60 hours, going the same distance each hour.
How many miles does the truck travel each hour?
A. 3 miles
B. 60 miles
C. 6 miles
D. 40 miles

Answers

2400miles/60hours
40miles/hour
Answer is D

The truck travels D) 40 miles per hour

What is the speed of an object?

Speed of an object is given by the distance travelled divided by time taken to traverse that distance , S = Distance/ time

Given here, distance = 2,400 miles and time taken= 60 hours

therefore speed = 2400/60

                           = 40 miles per hour

Hence, the truck travels 40 miles every hour.

Learn more about speed here:

https://brainly.com/question/7359669

#SPJ2

PLEASE SOLVEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

I think the answer is -6
The answer: -2,5
-2-3/2
-5/2
-2,5

Its for science but its got math involved
its got to do with speed distance and time​

Answers

for 1

distance:1, 1, 1.3, 1.5, 2, 2.3, 2.5, 3 ,3.2, 4

time. :1, 2, 3 , 4 , 5 , 6 , 7 , 8 ,. 9 ,10

for 2

distance:1.5, 2, 3.2, 4.2, 5, 6, 7, 8

time. : 1 , 2, 3 , 4. , 5, 6, 7, 8

at 5 seconds which travelled the greatest distance : snail 2

which travelled a greater distance:snail 2

what is the speed of snail 1 at 8 second :

distance = 3. Time = 8

speed = distance

time

speed = 8

3

speed =2.66

approximately = 2.7. or 3

Abby takes a ride-sharing service to ride from her home to the mall. The ride-sharing service charges $1.75 per mile plus a one-time charge of $5.00.

Which equation can be used to find y, the total cost of the ride, given x represents the number of miles of the ride?

(A.) y=1.75x−5
(B.) y=1.75(x+5)
(C.) y = 1.75x + 5
(D.) y = 5x + 1.75

Answers

Answer:

c)

Step-by-step explanation:

$5.00 is a one time charge but $1.75 is per mile and x represents the number of miles.

The equation can be used to find y is option (C.) y = 1.75x + 5

Given that,

The ride-sharing service charges $1.75 per mile plus a one-time charge of $5.00.Equation:

Here we present the equation for determining the y.

y=1.75(x+5)

Therefore, the option c is correct.

learn more about the equation here: https://brainly.com/question/10821476

An image point of a tranformation has coordinates Y'(2, -4). If the pre-image point had coordinates Y(6, -12) what was the transformation and scale factor?
a. reflection with scale factor 3
b. reflection with scale factor 1/3
c. dilation with scale factor 3
d. dilation with scale factor 1/3

Answers

dilation with a scale factor 1/3. the original points are three times as big as the transformed points, so the transformation needed to reduce the size by three times smaller.
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