Use the given x and y values to write a direct variation
equation. Enter your answer in the form y = kx.
x = 5, y = 50
The form is y = kx
Replace y and x:
50 = k(5)
Solve for k by dividing both sides by 5
K = 10
Please help, Will give brainliest
Firefighters used a ladder 50 feet high to reach a window that was 30 feet above the ground. From the same point on the ground, the ladder is turned to across the street to reach a window that was 40 feet high.
Select all the true statements.
The width of the street, BM, is 70 feet.
The ground distance of the ladder from building B is 30 feet.
The ground distance of the ladder from building M is 30 feet.
The width of the street, BM, is 122 feet.
The length KL is 50 feet.
Answer:
First since 2 of the options ask for the width of BM lets solve for it using the Pythagorean theorem for both sides of point L:
a² + b² = c²
30² + b² = 50²
b² = 50² - 30²
b² = 1600
b = 40 Line BL = 40 ft
Since the ladder is 50 feet it is the same length on the other side as well
a² + b² = c²
40² + b² = 50²
b² = 50² - 40²
b² = 900
b = 30 line LM is 30 ft
SO line lm + line bl = 30 + 40 = 70 ft
A is true because ^
B isn't true because as we solved for earlier, BL is 40
C is true because line LM is in fact 30 ft as we solved for
D is not true because as we said earlier BM is 70
E is true because the same ladder was used on both sides of the street
Step-by-step explanation:
The width of the street, BM, is 70 feet. The ground distance of the ladder from building M is 30 feet. The length of KL is 50 feet.
What is Pythagoras's theorem?Pythagoras's theorem states that in a right-angled triangle, the square of one side is equal to the sum of the squares of the other two sides.
First, because two of the possibilities require the width of BM, let us solve for it using the Pythagorean theorem for both sides of point L.:
a² + b² = c²
30² + b² = 50²
b² = 50² - 30²
b² = 1600
b = 40
So, Line BL = 40 ft
So because the ladder is 50 feet long, it is also the same length on the other side.
a² + b² = c²
40² + b² = 50²
b² = 50² - 40²
b² = 900
b = 30
So, line LM is 30 ft
So line lm + line bl = 30 + 40 = 70 ft
Hence, the true statements are options (A), (C), and (E).
Learn more about Pythagoras's theorem here:
brainly.com/question/343682
#SPJ2
Brainliest to first correct answer.
Solve the system of linear equations by substitution.
4x−2y=14
y=12x−1
The answer is x = -0.6 and y = -8.2.
Find an equation for y in terms of x
Answer:
y = [tex]\frac{9}{x^2}[/tex]
Step-by-step explanation:
Given y is inversely proportional to x² then the equation relating them is
y = [tex]\frac{k}{x^2}[/tex] ← k is the constant of proportion
To find k use an ordered pair from the table
Using x = 3 when y = 1 , then
1 = [tex]\frac{k}{3^2}[/tex] = [tex]\frac{k}{9}[/tex] ( multiply both sides by 9 )
9 = k
y = [tex]\frac{9}{x^2}[/tex] ← equation of proportion
21.06 + 3.3x = 6.7x – 9.54
Help pleaseeeee I will try and give brainliest
Answer:
the answers B c=35h+50
Step-by-step explanation:
Answer:
the answer is D. c= 85h
Step-by-step explanation:
i think this is the answer if it is correct plz give brainliest.
Expand and simplify
(x+2)(x-6)
Answer:
[tex]→(x + 2)(x - 6) \\ = {x}^{2}- 6x + 2x - 12 \\ = \boxed{{x}^{2} - 4x - 12}[/tex]
(x²-4x-12) is the right answer.Carrie rolls 2 fair dice and adds the results from each.
Work out the probability of getting a total more than 9.
Answer:
it is a 1 in 4 chance
Step-by-step explanation:
8 is the out come with more than 9 and 36 is the total number of out comes
Rectangle ABCD with dimesions of 8 cm by 12 cm is dilated by a scale facor k=1.5.
a. Find the area of Rectangle A'B'C'D':
b. How many times larger is the perimeter of Rectangle A'B'C'D' than Rectangle ABCD?
c. How many times larger is the area of Rectangle A'B'C'D' than Rectangle ABCD?
first one to answer gets brainlist
Answer:
a) 216 b)1.5 c) 2.25
Step-by-step explanation:
Laura bought a DVD for $12 and a CD for $10. After she bought the DVD and CD she had $55 left. How much money did she have before she bought the DVD and CD?
Answer:
she had $77 to her name
Step-by-step explanation:
Add the cost up from the cd & dvd then add the total from that and the 55
Answer:
She should've had 77 dollars before
Step-by-step explanation:
55 plus 12 = 67
67 plus 10 = 77
Which ones are true?
Answer:
its box 1,3,5
Step-by-step explanation:
plss helppp mee! The corporate team-building event will cost $18 if it has 3 attendees. How many attendees can there be, at most, if the budget for the corporate team-building event is $42? Assume the relationship is directly proportional.
Answer:
16 attendees at most. sorry if its wrong
Step-by-step explanation:
33 divided by 11 = 3.
3 for each attendee.
48 - 33 = 15.
15 divided by 3 = 5.
Jada had read 2/3 of a book . She has read 60 pages so far . How many pages are in the whole book?
A 24-foot ladder is placed 7ft from the wall, (as shown)
if the top of the ladder slips down 4 ft, how many feet will the bottom slide out?
a. 4 feet
b. 8 feet
c. 15 feet
d. 20 feet
anyone who answers this (first) will get 15 points!
5. A joint of meat weighs 3.5 kg when frozen. It loses 8% of its weight
when it is thawed. Find the mass of the joint when thawed. *
Answer:
The mass of the meat when thawed is 7.72 kg (0.28 kg is lost)
Step-by-step explanation:
From the question, we are told that the weight loss amount is 8% of its initial weight
The mass lost here when thawed will be;
8/100 * 3.5 = 0.28 kg
So the mass of the joint will be;
8-0.28 = 7.72 kg
Someone help please im really stuck on this one
Answer:
The answer should be c
Step-by-step explanation:
i need help on this geometry theorem bs it would be very appreciated
Answer:
D.10
Step-by-step explanation:
180 - 50 - 75 = 55
55 + 5 = 60
60/6 = 10
The length of the hypotenuse of a right triangle
is 10 cm and the length of one leg is 5 cm. What is
the length of the other leg?
Someone please help me! Easy 10 points
Answer:
I can't see ;-; show close up
3x^(2)+5x-2=0
solve step by step using quadratic formula.
Answer:
x=1/3,-2
Step-by-step explanation:
Need help with this one
Answer: Line 3
Step-by-step explanation:
PLEASE HELP!!! WILL MARK BRAINLIEST!!!
Name each transformation correctly as a Translation, Dilation, or Reflection.
WILL MARK BRAINLIEST IF CORRECT!!!!!!
Answer:
Translation
7, 18, 19, 20Dilation
9, 10, 17Reflection
7, 8 , note 7 has both reflection and translationIt took a car 4 days to travel 2686 miles. What was this car's average speed, in miles per hour? (round to the nearest mile per hour)
Answer:
28
Step-by-step explanation:
Well we know that in a day there are 24 hrs so in 4 days there will be 96 hrs
so the car travelled 2686 miles in 96 hours
2686/96= 27.9791666667
So the car's average speed is about 28
Need to find the answer to this equation. -10×+6=-74
Answer:
fe4trhegweggwerg4twerewerth54h4hyrht5th53h
Step-by-step explanation:
PLS HELP at a summer camp there are 876 girls and 25 boy how many more girls are there then boys
Answer:851
Step-by-step explanation:
help me please it's easy ig
Answer: 9 R53
**If the picture is sideways, use the rotate button at the top right.
x+0.5y=1.5 solve for y
Answer:
Y = 3 - 2x
Step-by-step explanation:
Kendra wants to put 37 games on 5 shelves. She wants to put the same number of games on each shelf and she will put the remaining games into a box. How many games will Kendra put in the shelves and how many will she put into the box?
Answer:
Kendra will put 7 games on each of the 5 shelves, 35 in total. 2 of the games will be put into the box.
Step-by-step explanation:
Find the least common denominator of the fractions. 4/7 and 2/3 A. 21 B. 7 C. 3 D. 10
Answer:
4/7 has least common denominator
= 0.5( approx.)
Answer:
21 is the answers for the question
Step-by-step explanation:
please mark me as brainlest
Please I need help anything
Step-by-step explanation:
g(x)=5/4(2)^x
Make a table of points. Choose any 5.
X. Y
0 5/4. 5/4*2^0
1. 5/2. 5/4*2^1
2. 5. 5/4*2^2
3. 10. 5/4*2^3
4. 20. 5/4*2^4
The x, y table above are x, y coordinates to plot. To the right is just solving the equation with different values for the power of 2