Points A, B, and C are collinear. Point B is between A and C. Solve for x
Find AC if BC=11x-1, AC=21x, and AB=11.
In his motorboat, Bill Ruhberg travels upstream at top speed to his favorite fishing spot, a distance of 264 mi, in 6 hr. Returning, he finds that the trip downstream, still at top speed, takes only 5.5 hr. Find the rate of Bill's boat and the speed of the current. Let x = the rate of the boat in still water and y = the rate of the current.
Answer:
The values are [tex]x = 46 miles /hr [/tex]
[tex]y = 4 \ miles / hr[/tex]
Step-by-step explanation:
From the question we are told that
The distance covered is d = 264 miles
The time taken is [tex]t_1 = 6 hours[/tex]
The time taken for the return trip is [tex]t_2 = 5.5 \ hours[/tex]
Generally during the trip toward fishing spot , the velocity is mathematically represented as
[tex]v_t = \frac{d}{t_1 } = x - y[/tex]
=> [tex]v_t = \frac{264}{6 } = x - y[/tex]
=> [tex]x - y = 44 \cdots 1 [/tex]
Generally during the return trip , the velocity is mathematically represented as
[tex]v_r = \frac{d}{t_2} = x+ y[/tex]
=> [tex]v_r = \frac{264}{5.5} = x+ y[/tex]
=> [tex]48 = x+ y\cdots 2[/tex]
add equation 1 and 2
[tex]2x = 92[/tex]
=> [tex]x = 46 miles /hr [/tex]
substituting this into equation 1
[tex] 46 - y = 44 \cdots 1 [/tex]
=> [tex]y = 4 \ miles / hr[/tex]
3. What is the solution set of the equation 3x + 5) = x + 2?
what are 3 points you can use to solve the equation:
-x-2y=8
Answer:
no idea
Step-by-step explanation:
Is that the right answer ?
Answer:
Yes, that is correct
Step-by-step explanation:
The formula for the slope can be referred to as "rise over run", a fraction where the rise (change in the y direction) is divided by the run (change in the x direction).
We can get the rise and run by choosing two points on the slope and looking for the change in the x and y direction. In this case, let us use the points (-4,0) and (0,-5). The change in the y direction is from 0 to -5, thus the rise will be -5. Likewise, the change change in the x direction is from -4 to 0 and the run will be 4.
Going back to "rise over run", we divide the rise by the run, giving us -5/4
6/7 divided by 2/7 show work pls thanks.
Answer:
42/14
Step-by-step explanation:
division is multiplication by its reciprocal so its gonna be 6/7x7/2=42/14
(simplify of course)
(6 r minus 1)(negative 8 r minus 3)
Answer:
8r
Step-by-step explanation:
(6r - 1)(-8r - 3)
(6r - 8r)( -1 - 3)
-2r(-4)
8r
Pls consider marking me as Brainliest! It would mean a lot!
(-5/7)10^ (-5/7) 11^ =
Answer:
Step-by-step explanation:
did you mean:
[tex](\frac{-5}{7} )^{10} (\frac{-5}{7} )^{11} =?[/tex]
If so,
it is similar to saying
[tex]x^{10} x^{11} = x^{10+11} = x^{21}[/tex]
I need help with the maths
Answer: 1. Function 2. Not a function 3. Not a function
Step-by-step explanation:
( this is an guess so don’t judge much)
Answer: a and b are functions c is not a function
Step-by-step explanation:
I’m smart
1/6 = 5/12 + p
Solving Equations.
Your class of 32 students is divided into fourths to create groups to answer a set of questions together Testigo to the front of the classroom and read off the groups answers how many students go to the classroom classroom. A) 2. B) 4. C) 6. D) 8.
Answer: D
Step-by-step explanation: 32 divided by 4 = 8
What is the value of the expression below?
(9 divided by 3) + 4 (6 minus 7)
–7
–1
7
20
Answer:
-1
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
9/3= 3, and 4(6-7)=-4. 3+-4 (or 3-4) is -1.
solve this please!!!!!!!!!!
Answer:
x= 3/a
Step-by-step explanation:
check the attachment for a walkthrough!
i need help with finding the value of x
Answer:
Step-by-step explanation:
7x-2=11x-34
-2+34=11x-7x
32=6x
x=32/6=16/3
will be nice if you give me brainlies.Good luck!
Explain how to make this an expression
176.3- 15.75
Answer:
I have that same question on my extra credit!
Step-by-step explanation:
I know the answer its 160.55 but I don't know what i should do for the problem. This is my questions:
Mina asked four friends to explain how each one solved the expression . Here are their explanations Please comment if these are the same:
Ivy’s explanation: I lined up the numbers to subtract.
176.3
- 15.75
18.8
Hannah’s explanation: I lined up the two decimals according to place value. I put a 0 in the hundredths place to make it easier for me to subtract.
176.30
- 15.75_
161.45
Jose’s explanation: I lined up the two decimals according to place value.
176.3
- 15.75
161.45
An’s explanation: I counted up from 15.75 to 176.3 to find the difference. I underlined each number I added on each line.
15.75 + 0.25 = 16
16 + 4 = 20
20 + 150 = 170
170 + 6 = 176
176 + 0.3 = 176.3
I rearranged the underlined numbers to make them easier to add: .
150 + 6 + 3 + 0.25 = 163.25
Explain each student’s mistake and solve the problem correctly.
Show your work.
Help me pls I am struggling In everything
Answer:
The answers are A, B, C, F
72÷(x−11)=8 i am having trouble
Hope u like it
PLZ MARK ME AS BRAINLIEST ♥️
if molly had 6.5 jars of honey how many does she have if she takes away 1.684
Answer:
bro how u have 6.5 jars and how someone take away 1.684 jars???? this dont make no sense
Step-by-step explanation:
4.816 is the answer but i wouldnt know how that would be possible
Which is a graph of y = 3x - 1?
Step-by-step explanation:
it would have a slope of 3 and it would cross the y axis on -1
Which verbal expression shows 4 ÷ n?
Answer:
the quotient of 4 and n
Step-by-step explanation:
or 4 divided by n
A factory can make 300 dozen doughnuts an hour. What is the unit rate in doughnuts per minute?
Answer:
5 per minute
Step-by-step explanation:
300 divided by 60 mins is 5.
Answer:
Step-by-step explanation:
300 times 12 =3600
3600 / 60 = 60
HELP MEEEEEE 20 pOInts
Answer:
55:5
121:11
Step-by-step explanation:
The domain of this function is {-2, 3). What is the minimum value in
the range of this function?
f(x) = -2x + 5
A: {-1}
B: {9}
C: {11}
D: {-11}
helpppp meeeeeeeeeee
im not that fam wit dat but here is how u find the x
Step-by-step explanation:
(THIS AND EXAMPLE!!!!)
To evaluate a function, substitute the input (the given number or expression) for the function's variable (place holder, x).
...
Replace the x with the number or expression.
Given the function f (x) = 3x - 5, find f (4). ...
Find the value of h (b) = 3b2 - 2b + 1 when b = -3. ...
Find g (2w) when g (x) = x2 - 2x + 1.
Mrs. Potter was going through her Halloween candy to see which kind she would bring to school. She sorted using decimal values. .17 of her 100 pieces were black licorice. .42 were m&m's. .12 were skittles. .09 were smarties. .14 were lollipops and .06 were gum drops. Mrs. Potter decided to bring the black licorice and the gum drops to school. What percent of her candy did she bring to school?
Answer:
23%
Step-by-step explanation:
She sorted using decimal values.
We convert the decimals to percent
.17 of her 100 pieces were black licorice.
.17 = 0.17 × 100 = 17%
.42 were m&m = 0.42 × 100 = 42%
.12 were skittles. = 0.12 × 100= 12%
.09 were smarties = 0.09 × 100= 9%
.14 were lollipops = 0.14 × 100 = 14 %
.06 were gum drops. = 0.06 × 100= 6 %
Mrs. Potter decided to bring the black licorice and the gum drops to school. What percent of her candy did she bring to school?
Licorice = 17%
Gum drops = 6%
The percent of her candy that she brought to school = 17% + 6%
= 23%
The percent of her candy that she brought to school is 23%
Can someone help me?
Answer:
x = 10
Step-by-step explanation:
50 + 4x = 90
4x = 40
x=10
Evaluate y(-7) + 9x
When x = -6, y = 7
Answer:
-103
Step-by-step explanation:
Answer: -103
Step-by-step explanation:
y=7 so 7x(-7)= -49 because a negative times a positive always equals a negative. Same thing for 9x. x=(-6) so 9x(-6)=-54. So (-49)+(-54)= -103
pls somebody help me with this question
Karen works at a car dealership. She makes only $5 an hour, but for every car she sells, she makes $1,000 in commission. If Karen worked 200 hours this month and made a total of $6,000, how many cars did Karen sell this month?
Answer:
4
Step-by-step explanation:
You are going down the river at 2mph but your canoe loses a wheel. at this rate, how many boxes of pancake mix will it take to re-shingle your roof.
Answer:
The temperature of the sun is -498 K / meters square
Hope that helps!
Answer:
Um... Is this the real question or you just trolling???
Step-by-step explanation: