A ladder 17 m long reaches a window 8 m high on one side of the road. the ladder is then turned over to the opposite side of the road and is found to reach another window 15 m high. Find the width of the road.Please apply the pythgoras property .
Answers
Answer:
23 mStep-by-step explanation:
It is assumed the width of the street is the distance between the opposite buildings.
See the picture attached
It comprises of two parts:
x and yUsing Pythagorean theorem, lets find the value of x:
x² + 15² = 17²x² = 289 - 225x² = 64x = 8 mSame rule for y:
y² + 8² = 17²y² = 289 - 64y² = 225y = 15 mThe width of the street (road) is:
8 m + 15 m = 23 m
Related Questions
$750 was earned in interest over 3 years. Find the interest rate if $5,000 was originally invested
Answers
Answer:
5% intrest yearly
Step-by-step explanation:
What value is closest to the length of major arc Xyz?
Answers
Answer:
44.0
Step-by-step explanation:
cause i did it :)
The triangles below are similar. Which similarity statement expresses the relationship between the two triangles?
Answers
Answer:
C. ΔFGH~ΔJKL
Step-by-step explanation:
Find the area of this figure.
A = in^2
Answers
Answer:
34
Step-by-step explanation:
Answer:
[tex]34in^2[/tex]
Step-by-step explanation:
First, you should find the area of the trapezoid which the formula for that is:
[tex](b1 + b2)h/2[/tex]
So, you will ad up 7in and 3in, and you should get 10in.
Now multiply 10 in by the height which is 5in, so it will be 50in^2. Then you have to divide that by 2 turning it into 25in^2.
For the top part, it is basically a triangle so you just multiply 3 by 6, giving you 18/2 = 9in^2
Add the two together and you should get 34in^2
A retangle has an area of 30 square meters and a perimeter of 34 meters what are the dimensions of the retangle
Answers
Answer: Length = 15 meters
Width = 2 meters
Step-by-step explanation:
Perimeter of a rectangle = 2l + 2w
Area of a rectangle = l × w
where l = length
w = width
Therefore,
2l + 2w = 34 ...... i
l × w = 30 ........ ii
From equation i
2l + 2w = 34
Divide through by 2.
l + w = 17 ...... iii
Then, l = 17 - w ........ iv
Put equation iv into ii
l × w = 30
(17 - w) × w = 30
17w - w² = 30
w² - 17w + 30 = 0
w² - 15w - 2w + 30 = 0
w(w - 15) - 2(w - 15) = 0
(w - 2) = 0
w = 0 + 2 = 2
w - 15 = 0
w = 0 + 15 = 15
Length = 15 meters
Width = 2 meters
A sweater was discounted by 36%. The amount if the discount was $27. What was the cost of the sweater?
Answers
Answer:
The cost of the sweater would be $17.28
if you buy three stickers you get a 75% discount on third sticker if one sticker cost $.40 how much will three stickers cost you
Answers
Answer:
$1.10
Step-by-step explanation:
The first two stickers cost $0.8. The thrird one will cost 75% of the cost of one sticker. To find the answer, you multiply 0.75 (0.75 is 75% as a decimal) by 0.4 to get 0.3. $0.3 plus $0.8 equals $1.10.
Lilly bought 4 pairs of blue jeans for $40. How much money did she pay the clerk for each pair of jeans?
$ -10
$ 10
$ -160
$ 160
Answers
Answer:
$10
Step-by-step explanation:
Answer:
10 in the answer
Step-by-step explanation:
10 is the answer
1.
This function represents the value, in dollars, of a particular model of car, whero z represents the number of miles driven,
f(x)= -50x + 25,000
a. What does f(x) represent?
b. What does x represent?
c. What does the number 25,000 represent?
d. What does the number -50 represent?
e. What is the value of the car after it's been driven 100 miles?
f. What is the value of the car after it's been driven 200 miles?
Answers
Answer:
The number of dollars it costs to drive the car 30 miles
Step-by-step explanation:
Translate this sentence into an equation.
The sum of 23 and Delia's score is 71.
Use the variable d to represent Delia's score.
Answers
pls help i well give u points
Answers
Answer: 4(-1)^3 (2)^2=4
So you would first substitute the x for -1
Then you would substitute the y for 2
Giving you- 4 (-1)^3 Times (2)^2 which would equal 4
Hope this helps :) Im learning this too in math lol
Mrs. Pascal has a candy jar that contains 5 Jolly Ranchers and 13 jawbreakers. Solve each of the following problems and explain your thinking.
1) Suppose that you have a new candy jar with the same ratio of Jolly Ranchers to jawbreakers that Mrs. Pascal had but it contains 100 Jolly Ranchers. How many jawbreakers would you have?
Answers
Answer:
260 jawbreakers
Step-by-step explanation:
The ratio is 5:13 so if the value of Jolly ranchers increased 20x then the number of jawbreakers would also increase by 20x. There are 260 jawbreakers.
What is the variables in the expression
x2 + y - 2 - 16
Answers
Answer:
The variables in your equation are x and y;
the numbers in your equation are 2, -2, and -16
In the Seventh grade Rachel read 15 books in the 8th grade she read 19 books what is the percent of change of books read
Answers
Answer:
26.67%
Step-by-step explanation:
In the Seventh grade Rachel read 15 books in the 8th grade she read 19 books what is the percent of change of books read
The formula for Percent change =
New value - Original value/Original value × 100
New value = 19 books
Original value = 15 books
= 19 - 15/15 × 100
= 4/15 × 100
= 26.67%
The percent change of book read= 26.67%
A tire has a radius of 7.5 inches.
How many inches will the tire travel after one rotation?
Answers
Answer:
80
[tex]80\pi \frac{rad.}{sec.} [/tex]
Step-by-step explanation:
You need to calculate the circumference of this wheel to determine how far it travels with each revolution.
First, you need to know the diameter of a circle, which is the length of a straight line drawn through the circle.
You need to calculate the circumference of this wheel to determine how far it travels with each revolution.
First, you need to know the diameter of a circle, which is the length of a straight line drawn through the circle.
The magic number here is pi, which is roughly 3.14159265. The digits to the right of the decimal point continue infinitely.
Dividing a circle’s circumference by pi will give you a circle’s diameter.
Multiplying a circle’s diameter by pi will give you a circle’s circumference.
Suppose 15 Argus student ride the city bus to school. Out of a total of 220 students, what percent ride the city bus (round to nearest whole %)
Answers
Answer:
7%
Step-by-step explanation:
(15/220) x 100 = 6. 8182 = 7%
to convert to percentage multiply by 100
To convert to the nearest whole number, look at the first number after the decimal. If it is greater or equal to 5, add 1 to the number after the decimal. 8 is greater than 5, so add one to 6
The sum of a number and five is
thirteen.
(write the equation )
Answers
Answer:
8+5 = 13
Step-by-step explanation:
mark brainliest please
Answer:
n+5=13
Step-by-step explanation:
if you want the answer, its 8
5 divided by 7 as a decimal
Answers
Answer: 0.714
Step-by-step explanation:
Which best describes the association shown in the scatter plot?
A. no association
B. strong positive
C. moderate positive
D. strong negative
Answers
Answer:
strong negative
Step-by-step explanation:
i need help baddddddddddddddd plzz
Answers
Answer:
A
Step-by-step explanation:
it's A because it is the only option with an inequality symbol
the inequality symbols are: < > ≤ ≥
the perimeter of the floor of a room is 18 metre and its height is 3 cm what is the area of 4 walls of the room
Answers
Note: The height of the room must be 3 m instead of 3 cm because 3 cm is too small and it cannot be the height of a room.
Given:
Perimeter of the floor of a room = 18 metre
Height of the room = 3 metre
To find:
The area of 4 walls of the room.
Solution:
We know that, the area of 4 walls of the room is the curved surface area of the cuboid room.
The curved surface area of the cuboid is
[tex]C.S.A.=2h(l+b)[/tex]
Where, h is height, l is length and b is breadth.
Perimeter of the rectangular base is 2(l+b). So,
[tex]C.S.A.=\text{Perimeter of the base} \times h[/tex]
Putting the given values, we get
[tex]C.S.A.=18\times 3[/tex]
[tex]C.S.A.=54[/tex]
Therefore, the area of 4 walls of the room is 54 sq. metres.
what is 7 over 5 - 1
Answers
Answer:
2/5
Step-by-step explanation:
I assume you mean 7/5 - 1
In that case you would need to make 1 a fraction that has a common denominator with 7/5.
7/5 - 5/5 = 2/5
A photo is 15 centimeters high and 9 centimeters wide. Mikael wants to proportionately shrink it so its height is 6 centimeters high. How wide would it then be? Find the missing measurement using a proportion
Answers
Answer:
6:3.6
Step-by-step explanation:
The hight of the photo=15
so,15=6
15 :- 2.5=6
9 divided by 2.6= 3.6
therefour, the answer will be 6:3.6
If B = 49° 13' and b = 10, find a.
a. 4.6
b. 8.6
c. 5.4
d. 6.5
The answer is B.
Couldn’t find the answer when I was looking so I thought I’d post it.
Answers
Answer:
A. is 8.6
B= 49°13' b=10 A=?
so my answer for A=8.6
solve : 3x - 3 = 2x
if you can show workings that would be great thank you !
Answers
Answer:
3
Step-by-step explanation:
3x-3=2x
3x-2x=3
x=3
Answer:
x=3
Step-by-step explanation:
3x - 3 = 2x
-3x -3x
-3 = -x
The x cannot be a negative so you divide both sides by -1 and then the answer becomes x=3
The sum of the measures of 2 angles is 90o. Angle C is 34o. Angle G is (3x-4)o. What is the value of x?
Answer: x =
a
13 in2
b
25 in2
c
50 in2
d
200 in2
Answers
Answer:
d if "in2" means /2
Step-by-step explanation:
3x-4=90-34
8b-What is the Unit Price for the better deal? Round to the nearest hundredth) Put your answer in the form 0.00 or .00, so if answer is 43 cents, its 0.43 or.43, if there is a dollar amount like 1.50, do not add zeros in front) Your answer 9- Which sour cream is the better deal? * O Daisy Sour Cream $1.49 for 8 oz O Kraft Sour Cream $2.55 for 16 oz
Answers
14 i think is the answer
Two identical number cubes are shown in the picture. The edge length of these number cubes is 3 centimeters. What is the combined volume of the two number cubes in cubic centimeters? 27 cm3 9 cm3 18 cm3 54 cm3
Answers
Answer:
They are both identical cubes which makes it much easier.
Work out the volume for just one first.
The formula for volume is:
l x w x h
However, since it is a cube, all lengths are the same.
3 x 3 x 3 = 27
Now multiply it by 2 to get the volume of both combined:
27 x 2 = 54.
In short, your answer is 54cm 3
Hope This Helps You!
Good Luck :)
Step-by-step explanation:
What is 9876 times 567
Answers
Answer:
5599692
Step-by-step explanation:
Simply do the multiplication out, then you should get the answer:
5599692
Answer:5599692
Step-by-step explanation:
just multy and you will get it
27=15+n I can not get this one ether
Answers
Answer:
n= 12
Step-by-step explanation:
27=15+n
step 1. simplify
27=n+15
step 2. flip the equation n+15=27
step 3. subtract 15 from both sides
n+ 15 - 15 = 27 - 15 =
n=12
Answer:
12.
Step-by-step explanation:
We don't have the other number, so we must do the reverse operation, which is subtraction. So we have to subtract 27 from 15. 7-5 is 2, and 20-10 is 10. Add those together and you get 12.