Thomas 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 5 feet long. Then, he holds a 1-foot
ruler perpendicular to the ground and finds that it casts a 2-inch
shadow. How tall is the lamppost?
a. 2.5 ft c. 30 ft
b. 12 ft d. 60 ft
Answer:
The lamppost is 30 ft tall.
Step-by-step explanation:
You need to draw a diagram of the problem. Refer to attachment.
Now you need to convert the measurements that are in feet to in. The 1 foot ruler is now 12 in. and the 5 foot post's shadow is now 60 in.
The next step is to create a proportion between both angles. [tex]\frac{x}{1} =\frac{60}{2}[/tex]
x over 1 is simplified to x and 60 divided by 2 is just 30. So the lamppost is 30 ft tall.
Hope that helped. :)
Is this right? I chose 15.
Answer:
Correct, it is 15
Step-by-step explanation:
Because 3 turns into 9, you also want to multiply the other by 3, so you’d do 5x3 to get 15
Answer:yes you are correct. The answer is 15
Step-by-step explanation:
You would have to do 9/3=x/5. If you simplify that it would be 3x=45. If you simply further, you would get x=15 so yes you are correct.
If you have time... HELP
Answer:
8/5
Step-by-step explanation:
opposite reciprocal
flip sign ±
flip numerator and denominator
If i'm getting paid 20$ a week to clean my house, and i need 600$ to buy a dog how many weeks would i have to clean?
Answer:
30 weeks
Step-by-step explanation:
600/20
The following linear equation is shown: y = 2% + 5
Using this equation, what is the value of the missing space on the table
Oy=8
Oy=9
O y = 18
I don't know
Answer:
y=8
Step-by-step explanation:
Answer:
13
Step-by-step explanation:
Between 9 and 11 the gap is 2. Add 2 to 11 and you get 13
Pls help....due 11:59 do (not do numbers 1,2,3,4,6,9,11, and 12)
Answer:
5-24.97
7-92.31
8- -14.16
Step-by-step explanation:
Answer:
Step-by-step explanation:
1) 8.53
2) -10.46
4) -5.05
5) 24.97
7) 92.31
8) -14.16
10) 6.42
11) 14.64
13) 6.7
14) 9.9
What does an “Indian reservation” do to the Right of Occupancy?
Answer:
lol 2 months later
Step-by-step explanation:
Thomas 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 5 feet long. Then, he holds a 1-foot
ruler perpendicular to the ground and finds that it casts a 2-inch
shadow. How tall is the lamppost?
a. 2.5 ft c. 30 ft
b. 12 ft d. 60 ft
Answer:
C. 25
Please mark brainiest
Step-by-explanation:
4. Is the relation represented on the graph a function? Explain
5. What is the slope of the line shown on the graph? Explain how you got your answer pls.
Jerod is making candles from beeswax. He has 132.72 ounces of beeswax. If each candle uses 8.4 ounces of beeswax, how many whole candles can he make?
brainliest will be given!
Answer:
15 candles
Step-by-step explanation:
132.72÷8.4=15.8
therefore jerod can make 15 whole candles
hope this helps
3(4x - 8) = 15x - 10 - 3x. Explain if this is an infinite, one or none solution problem. Explain your answer!!
Answer:
There are no solutions to this answer.
Step-by-step explanation:
I checked my answer by going to an app and they said there was no answer to the question too.
PLEASE HURRY, BRAINLIEST??
Jude graphed the inequality s
A number line going from negative 12 to negative 4. A closed circle is at negative 9. Everything to the left of the circle is shaded.
Is his graph correct? Explain why or why not.
Answer:
Sample Response: No, Jude’s graph is incorrect. The inequality symbol is “less than,” so -9 is not included. He should have used an open circle on -9.
Step-by-step explanation:
Answer:
No, Jude’s graph is incorrect. The inequality symbol is “less than,” so -9 is not included. He should have used an open circle on -9.
Step-by-step explanation:
Plz :<
In a science experiment, the temperature of a substance is changed from 42 degrees Fahrenheit to -54 degrees Fahrenheit at an average rate of -12 degrees per hour. Over how many hours does this change take place? *
10 points
A -8 hours
B. 1/8 hour
C. 1 hour
D. 8 hours
Answer:
D 8 hours
Step-by-step explanation:
it has to be positive and it is obviously more than 1 hour so it has to be 8 hours by process of elimination.
Evaluate -(7-³)(7⁵)
A. -49
B. 49
C. 1/49
D. - 1/49
Answer:
A
Step-by-step explanation:
The length of a path from a picnic area to the playground is 34 mile. The path has signs with arrows pointing to the playground every 18 mile.
How many signs are placed along the path, assuming that there is a sign at the beginning of the path but not at the end?
An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
The number of signs that are placed along the path, assuming that there is a sign at the beginning of the path but not at the end is 2 signs.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
Length of the path = 34 mile
There is a sign after every 18 miles.
Now,
There is a sign at the beginning of the path and not at the end.
The number of signs:
= 34 ÷ 18
= 34/18
= 1.8
This means there will be one sign.
Now,
There was a sign at the beginning so we have,
1 + 1 = 2 signs
Thus,
The number of signs that are placed along the path, assuming that there is a sign at the beginning of the path but not at the end is 2 signs.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ2
Create a proportion using the form = to represent the following word problem.
What is 60% of 20?
Answer:
60/100 and x/20 and x=12
Step-by-step explanation:
60 % of 20
60/100 = x/20
cross product
60 * 20 = 100x
divide by 100
1200/100 =x
12=x
Answer:60/100 = x/20 x= 12
hope it's right
Select the correct answer from each drop-down menu.
Claire is on a business trip. She’ll be traveling from Liverpool, England, to Melbourne, Australia.
The latitude value of Liverpool is 53.41 degrees, and the longitude value is -2.99 degrees. The latitude value of Melbourne is -37.81 degrees, and the longitude value is 144.96 degrees. The two cities are
degrees apart in latitude. The two cities are
degrees apart in longitude.
Answer:
the difference in latitude is 91.22°
the difference in longitude is 147.95°
Step-by-step explanation:
For Liverpool, London. The latitude is 53.41°, longitude is -2.99°
For Melbourne, Australia. The latitude is -37.81°, longitude is 144.96°
The negative or positive magnitude of their values shows their position on either sides of the origin of the latitude (equator) and the origin of the longitude (prime meridian).
The latitude measures the relative position of a point, north or south of the equator (latitude 0°). The longitude measures the relative position, east or west of the prime meridian (longitude 0°)
the difference in latitude is 53.41° - (-37.81°) = 53.41° + 37.81° = 91.22°
the difference in longitude = 144.96° - (-2.99°) = 144.96 + 2.99 = 147.95°
ASAP DINT ANSWER IF YOU DONT DO ALL BRAINLEST TO THE ORECT ANSWERS
Answer:
The first one towards the left, or the green triangle, would be 70 degrees.
The second one, or the one in the middle, would be 108 degrees.
The last one, or the yellow triangle, would be 65 degrees.
PLEASE ANSWER! I WILL GIVE 80+ POINTS, BRAINLIEST, A THANKS, 5 STARS, AND A FOLLOW IF YOU ANSWER ALL OF THESE (P.S they all have to do with direct variation):
#1) If y varies directly with x, write an equation for the direct variation. Then find each value. If y = –4 when x = 10, find y when x = 5
#2) If y varies directly with x, write an equation for the direct variation. Then find each value. If y = 12 when x = –15, find y when x = 2
#3) If y varies directly with x, write an equation for the direct variation. Then find each value. Find x when y = 18, if y = 9 when x = 8.
Answer:
Step-by-step explanation:
1: -2?
2: 17?
3: 16?
Can someone please help me!?
The length of a rectangle is 6 times its width. If the perimeter of the rectangle is 98 in, find its length and width.
Answer:
length - 42
width - 7
Step-by-step explanation:
There are 9 bottles of juice on a shelf. Each serving of juice is 15 of a bottle.
How many servings of juice are there in the bottles on the shelf?
I donthave time to work these out so please help :)
Answer:
135
Step-by-step explanation:
what's the missing side? A side of 6 cm and a side of 6 cm. what is the hypotenuse? Round the answer
Answer 4 I think
Step-by-step explanation:
6*6=36 round it off 4
PLEASE HELP ME ;-; ILL MARK AS BRIANLIEST IF ITS RIGHT
The event coordinator asks you to determine how many students participated in the
track-and-field day. The total number of students in seventh and eighth grade
combined is 584; 5/8 of them are seventh graders and 3/8 of them are eighth-graders. If 4/8 of the seventh graders participated in track-and-field day and 7/8 of the eighth graders participated, about how many total students participated? Describe the process you used to find your answer.
Answer:
374.125 students. Not sure if you're supposed to round up or down considering you can't have a fraction of a person, but I would round down.
Step-by-step explanation:
(5/8) (584) = 365 seventh graders in total
(3/8) (584) = 219 eighth graders in total
(4/8) (365) = 182.5 seventh graders who participated in track-and-field day
(7/8) (219) = 191.625 eighth graders who participated in track-and-field day
182.5 + 191.625 = 374.125 students in total who participated
Answer:
First, I took 5/8 out of 584 for the seventh graders which came out to 365 seventh graders. Then, I did the same thing with 3/8 and it came out to 219 eighth graders. Then I took out 4/5 out of 365 which resulted as 292. Then I did the same thing for 7/8 and the results came out as 191. So in total 483 students participated in track-and-field day.
Step-by-step explanation:
A plant grew 7 inches in 5 months. The plant grows the same amount each month. Use this rate to complete this table.
Answer:
month height
1 1.4
2 2.8
3 4.2
4 5.6
5 7
6 8.4
7 9.8
Step-by-step explanation:
help with these 3 questions
Answer:
1. A
Step-by-step explanation:
You would need to multiply 20 times 60, which equals 1800, then divide 1800 by 300 which will get you 4 halves, then make them wholes and you get 2
Does the table represent a proportional relationship? (I know I'm asking again but I am legit confused now)
Answer:
No. There is not a constant slope on the y side of the table
Step-by-step explanation:
Answer:
I believe so it a difference between x and y so it should be.
Step-by-step explanation:
im a little bit confused but i believe thats right
Help?
( this is not from a quiz. )
( also, this is science. )
my last question got answered and they told me answers not even related to the question.
Answer:
A
Step-by-step explanation:
if u count the number of spaces from the zero after the decimal point then make it negative becouse the zeros are behind it
HELP NOW PLEASE!
For the below graph what is the Constant Rate of Change?
A. 3/1
B. -3/1
C. 1/3
D. -1/3
Answer:
-3/1 is the correct answer
Please help me write this inequality from the graph.
Answer:
y < 1/2x + 8y <
Step-by-step explanation:
y = mx+b
m = slope
b = y - intercept
slope = 1 1/2
y - intercept = 8
Line is dotted so its not equal to
The shade is underneath so its less than.
y < 1/2x + 8
Find the Mean Absolute Deviation of the set: 56, 21, 55, 30, 33
A-65.2
B-192
C-39
D-13.2
Answer: it's c
Step-by-step explanation:The mean is the average of the numbers. It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.
56+21+55+30+33/5=39
Answer: i think the answer is 39
Step-by-step explanation: the mean is the average of all the numbers so you would add 56+21+55+30+33 =195 you would then dived the total by the amount of numbers there are in this situation there are 5 so you would do 195diveded by 5 which = 39 I hope this makes since and this helps if this is not what your asking plz clarify :)