Answer:
x=15
Step-by-step explanation:
Your brother traveled 117 miles in 2.25 hours to come home for Christmas. What's the average speed that he was traveling?
Answer:
52 miles per hour
Step-by-step explanation:
The formula for Average speed is given as: Distance(miles)/Time in hours
From the question,
Distance = 117 miles
Time = 2.25 hours
Average Speed = 117 miles/2.25 hours
Average Speed = 52 miles per hour
The average speed that he was traveling is 52 miles per hour
solve by graphing if possible: 12n² + 11 = 0
Answer:
No real solutions
Step-by-step explanation:
Answer:
-528
Step-by-step explanation:
Simplify.
5 + 2(3x − 4) − x
1. 1 + 5x
2. 13 + 5x
3. −3 + 5x
4. 13 + 7
Find the unknown side length of the rectangle is 3 2/3 and if the area is 11m2
Answer:
The width of the rectangle given is equal to 3m.
Step-by-step explanation:
In order to solve this question we need to know that the areas of the rectangle is equal to [tex]A_{rectangle} = (l)(w)[/tex], where "l" is length and "w" is width. So know in order to solve this question we would have to find out the unknown width by using area and the length of the triangle. Based on the formula I wrote down earlier we can understand the following.....
[tex]A_{rectangle} = (l)(w)[/tex]
[tex]\frac{A_{rectangle} }{l} = \frac{(l)(w)}{l}[/tex]
[tex]w = \frac{A_{rectangle} }{l}[/tex]
Just now we found out the formula that we can use to solve for the width when we know the area and the length of the rectangle. Now in order to get the answer we just have to plug in the values we know, and we get........
[tex]w = \frac{A_{rectangle} }{l}[/tex]
[tex]w = \frac{11m^{2} }{(3\frac{2}{3}m )}[/tex]
[tex]w = 3m[/tex]
EASYY pls help asappppppppppppp
Answer:
its B
Step-by-step explanation:
Answer:
i don't know if you still need a answer or not-
Step-by-step explanation:
Does this have Infinite, No, or One solutions? 9x - 17 = -17 + 9x
Answer:
infinite
Step-by-step explanation:
plz give brainliest
Answer:
infinite
it has infinite solutions because the numbers on both sides of the equal sign are exactly the same
Step-by-step explanation:
Helppp ...............
Answer:
i think its B
Step-by-step explanation:
im not sure but im pretty sure if its wrong im sorry but im pretty sure its correct
A garden hose fills a 2-gallon bucket in 5 seconds. The number of gallons, g (/), is proportional to the number of
seconds, t (x), that the water is running.
What is the constant of proportionality? k=-
help
Answer:
The constant of proportionality = k = 2/5
Step-by-step explanation:
Given that a garden hose fills a 2-gallon bucket in 5 seconds.Also given that The number of gallons, g (/), is proportional to the number of
seconds, t (x).
i.e.
g ∝ t
g = k × t
k = g / t
as
g = 2
t = 5
Thus,
k = g / t
= 2 / 5
Thus, the constant of proportionality = k = 2/5
In 1972, an item cost $0.28. Now the same item costs $1.02. What is the approximate percent increase of the cost of the item?
A.
27%
B.
73%
C.
264%
D.
364%
Answer:
B
Step-by-step explanation:
i did the test
Twenty seconds after a plane in the air show- dives, it is 300 feet from where it begin. At what rate is the plane diving
Please help! 20 points + brainliest
(***NOTICE: Bots/trolls seeking points will be reported.***)
Solve these two equations:
For the first one we divide every element by sqrt3
we get
q+2/sqrt3 =sqrt5/sqrt3
q=(sqrt5-2)/sqrt3
q=sqrt3*sqrt5-2*sqrt3/3
q=sqrt15-2sqrt3/3
which is the third option
For the second one
sqrt(2y-5) +4=8
first we move the 4 to the right
sqrt(2y-5)=4
we remove the square root by bringing to the power of two
2y-5=16
2y=21
y=21/2
y=10 1/2
third option
PLEASE HELP !!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!
Answer:
I actually can't measure it, but if you will and cmt the measures, I can help you round them!!!
Step-by-step explanation:
PLEASE HELP ITS URGENT
What are the domain and the range of the graph?
The domain is (−∞,1) and the range is (−∞,∞).
The domain is (−∞,∞) and the range is (−∞,1).
The domain is (−∞,−1) and the range is (−∞,∞).
The domain is (−∞,∞) and the range is (−∞,−1).
Answer: its b
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
Which of the following inequalities would have a solid line when graphed? Select all that apply.
A y>x−9y is greater than x minus 9
B −5x+y≥10negative 5 x plus y is greater than or equal to 10
C y≤3x+6y is less than or equal to 3 x plus 6
D 2x−8y 0
Answer:
A. y>x−9y is greater than x minus 9
thanks for helping!
Answer:
$45
Step-by-step explanation:
so where the line intercepts the 2 hours is $45, and to find the .25 hours we take the $20 for working one hour and divide that by four, because .25 is 1/4 of an hour. so 20/4 is five. then you add 5 to 40 and we get $45 for work 2.25 hours. hope that helped
please help ill give brainliest
What is the direct variation equation if Y varies directly with X and Y equals negative 12 when X equal 6
Step-by-step explanation:
y = kx, where k is a real constant.
When x = 6, y = -12:
(-12) = (6)k
Therefore k = -2.
Hence y = -2x.
The direct variation of Y with X is Y = -2X.
What is an equation?Equation: A declaration that two expressions with variables or integers are equal. In essence, equations are questions, and attempts to systematically identify the solutions to these questions have been the driving forces behind the creation of mathematics. Simple algebraic equations with merely addition or multiplication to differential equations, exponential equations with exponential expressions, and integral equations are examples of different types of equations. They are employed to represent a number of physics laws.
As per the given data:
Y varies directly with X.
Y equals -12 when X equal 6.
Let's consider the equation Y = kX:
∴ -12 = k(6)
k = -2
Y = -2X
Hence, the direct variation of Y with X is Y = -2X.
To learn more about equation, click:
brainly.com/question/10413253
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PLEASE HELP ME WITH THIS PROBLEM ASAP
Answer:
8
Step-by-step explanation:
32/4=8
Answer: 8 minutes
Step-by-step explanation: You can use a proportion to calculate.
[tex]\frac{32}{4} = \frac{x}{1}[/tex]
32 x 1 / 4 = 8
8 minutes = 1 mile
what abiotic factor is changing the ecosystem of Lake Washington,and how has this factor changed over time.
Answer:
Step-by-step explanation:
Temperature is the abiotic factor that is changing the ecosystem. Both the top layer temperature and the overall temperature of the lake are increasing. The warmer temperatures have delayed the yearly springtime mixing of warm and cold water in the lake.
PLEASE ANSWER ASASP FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!
A thermometer manufacturer compares the reading on one of its thermometers to a thermometer that they know is accurate. The accurate thermometer reads 25 degrees Celsius. Their thermometer reads 30 degrees Celsius. What is the percent error in their thermometer's reading?
A.2%
B.20%
C.83%
D.16%
Answer:
B. 20%
Step-by-step explanation:
Percentage Error = (Actual Value - Expected Value) / Expected Value * 100
Actual Value = 30
Expected Value = 25
Percentage Error = (30 - 25) / 25 * 100
Percentage Error = (5) / 25 * 100
Percentage Error = 0.2 * 100
Percentage Error = 20
Can somebody plz answer correctly on all 3 questions on #15 thanks a lot!!!
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDD
Find the solution of the systems of equations
Answer:
This is the answer...And can I get the Brainliest
Please help! I will mark the brainliest!
How do you graph the equation...
y=6x+600
y=8x
y=1300+3x
with a domain of 0 t 650 and a range of 0 d 1500
yall please help mee!!im struggling and i need to turn this soon!
Answer:
his faucet will leak 6/4 cup of water every hour, its c, you are correct good job, good luck
Step-by-step explanation:
Since it leaks 3/4 cups every 1/2 hour, in a whole hour it will leak twice as much:
[tex]\dfrac{3}{4}\cdot 2=\dfrac{6}{4}[/tex]
Kaitlyn start a job that pays $8.50 per hour Caitlin's manager says that if her job reviews were favourable she can expect annual pay rate increases of $0.75 which equation represents the relationship between years on the job and pay for our
Given:
Initial pay rate = $8.50 per hour
Increase in pay rate = $0.75 per year
To find:
The equation that represents the relationship between years on the job and pay for hour.
Solution:
Let x be the number of years and y be the pay rate after x years.
According to the question,
Increase in pay rate in 1 year = $0.75
Increase in pay rate in x year = $0.75x
So, variable pay rate = $0.75x
Initial pay rate = $8.50
So, the total pay rate is
Total pay rate = Initial pay rate + Variable pay rate
[tex]y=8.50+0.75x[/tex]
Therefore, the required equation is [tex]y=8.50+0.75x[/tex].
Jack drove 520 miles on his trip. If he was going 65 miles per hour, how many hours did he drive?
Answer:
8 hours
Step-by-step explanation:
520 miles divided by 65mph
Explain how to determine the locations (quadrants) based on the signs of the points (3, –4) and (–4, 3).
please hurry i will rate 5 stars and a heart
Complete the table below for the function y = -6x + 4.
16. IF X= 31, then what is the perimeter of triangle JMN?
Answer:
180
Step-by-step explanation:
To solve we must first plug 31 into each expression for x.
2(31)+5= 67
3(31)-9= 84
31-2= 29
Then, remember that the perimeter is the sum of all of the sides. So add all of the previous sums, 67+84+29. Therefore, the answer is 180.
A charity organization had to sell a few tickets to their fundraiser just to cover necessary production costs after selling 10 tickets, they were still a net loss of $800 (due to the product cost). They sold each ticket for $70 let y represent the net profit (in dollars) when they have sold x tickets
Answer:
y = 70x - 1500
Step-by-step explanation:
Price per ticket = 70
Using the relation :
y = mx + c
x = number of tickets sold
When x = 10 ; y = - 800
Hence,
-800 = 70(10) + c
-800 = 700 + c
-800 - 700 = c
Hence, c = - 1500
The equation for the net profit in dollars is :
y = 70x - 1500