Answer:
He has 22 students
Step-by-step explanation:
45 divided by 2 is 22 with 1 left over
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]
(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!
Find the solution when x=2 and y=6
x(7+ y) - 5
Answer:
21
Step-by-step explanation:
2(7+6)-5
2(13)-5
26-5
21
(-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]
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
What is the interquartile range?
(a) 18
(b) 35
(c) 57
(d) 68
(e) 75
Lowe's is advertising 3 plants for $17.94. How much would it cost for Simon to buy 2 plants?
A $11.96
O B. $10.90
C. $7.18
D. $8.97
Answer:
11.96
Step-by-step explanation:
We can figure this out by multiplying 17.94 times 2/3, which gives us a total of 11.96
Grace has $45 at most in her purse.write in less than or more than equation
Just solve for 50 points and brainliest!
10-5x3=
6x4+10=
Answer:
10-5x3=15
Step-by-step explanation:
6x4+10=34
Answer:
10-5x3= 15
6x4+10=34
Step-by-step explanation:
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%
Does this graph represent a function? Why or why not?
10+
8.1
8+
2
06142
10
A. Yes, because it passes the vertical line test,
B. Yes, because it is a curved line.
C. No, because it fails the vertical line test.
D. No, because it is not a straight line.
Can someone help me?
9514 1404 393
Answer:
54w^7/v^17
Step-by-step explanation:
The applicable rules of exponents are ...
(a^b)(a^c) = a^(b+c)
a^-b = 1/a^b
a^0 = 1 . . . . for any a ≠ 0
__
[tex]3y^5y^{-5}v^{-9}\cdot6wv^{-8}\cdot3w^6=(3\cdot6\cdot3)v^{-9-8}w^{1+6}y^{5-5}\\\\=54v^{-17}w^7y^0=\boxed{\dfrac{54w^7}{v^{17}}}[/tex]
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!
-3/4 x -1/5=
What is the answer??
Answer:
870000000000000000000000
Which expression is equivalent to x^2+ 5x – 24?
Answer:
(x+8)*(x-3)
Step-by-step explanation:
A. What’s 0.9333.... as a fraction?
Answer:
0.9333=9333/1000
Step-by-step explanation:
0.9333=0.9333/1
0.9333/1*1000/1000
=9333/1000
Help me pls I am struggling In everything
Answer:
The answers are A, B, C, F
Kristina needs to mix a 20% alcohol solution with a 60% alcohol solution to create 200 milliliters of a 34% solution. How many milliliters of each solution must Kristina use?
Answer:
20% alc: 135 mL
60% alc: 65 mL
Explanation:
Table:
20% alc / x / (.2)(x)
60% alc / 200-x / .6(200-x)
34% alc. / 200 / (.34)(200)
Equation for 60% alc: .6(200-x) = (.34)(200) + (.2)(x)
Equation for 20% alc: (.2)(x) + .6(200-x) = (.34)(200)
Final:
20% alc: 135 mL
60% alc: 65 mL
Hopes this helps! :))))))) [vote brainliest]
Is 12/3 a proportion
Answer:
yes
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
12/3 is a proportion as it is an improper fraction, and those are normal.
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:
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
Assuming there are no reflections or dilations, explain how you would write the equation of the function whose graph is sketched below.
Answer:
Start with the parent function y= 1/x^2
Add 3 to x in the denominator, because the graph is shifted left 3.
Add 1 to the fraction, because the graph is shifted up 1 unit.
Step-by-step explanation:
i just know
The equation of the function shown in the provided graph is [tex]y=\frac{1}{(x+3)^{2} }[/tex].
The parent function is: [tex]f(x)=\frac{1}{x^{2} }[/tex]
How horizontal shifting of the graph takes place?If a function f(x) is shifted horizontally by k units the parent function f(x) becomes f(x+k) where k>0
Since the graph is shifted towards the negative x-axis by 3 units.
So, the parent function f(x) will become f(x+3).
[tex]f(x)=\frac{1}{x^{2} }[/tex]
[tex]f(x+3)=\frac{1}{(x+3)^{2} }[/tex]
So, the equation of the function will be [tex]y=\frac{1}{(x+3)^{2} }[/tex].
Therefore, The equation of the function shown in the provided graph is [tex]y=\frac{1}{(x+3)^{2} }[/tex].
To get more about the graphs visit:
https://brainly.com/question/25020119
During the summer, the height of the water in a pool decreases by 4 inches each week. What is the change in height of the water over a six week period?
Height of water in a pool that decreases every week during summer = 4 inches
The change of the height of water in six weeks :-
[tex] = 6 \times 4[/tex]
[tex]\color{olive} =\color{hotpink} 24\color{olive} \: \: inches[/tex]
Therefore , the height of the water in the pool would have decreased by 24 inches in six weeks .
Julla typed 374 words in five minutes in her keyboarding class. At this rate, how many words could she type in 11 minutes?
Answer:
822.8 Words.
Step-by-step explanation:
First, divide 374 by 5 to find the amount of words "Julla" can type in 1 minute. This should give you 74.8 words. Then multiply this by 11 to find the amount of words "Julla" can type in 11 minutes. By doing this, we can get 822.8 words. You may want to round this up to 823 words.
Hope this helps! Let me know.
Can somebody please answer all of these questions and only if u know how to do this!!! Thanks
(WILL MARK BRAINLIEST
:D
Hi again I helped you on your last question, I love helping people. Anyway here's the answer!
16. 0.188 rounded nearest hundredth = 0.19
17. 0.455 rounded nearest hundredth = 0.46
18. 0.538 rounded nearest hundredth = 0.54
19. 0.417 rounded nearest hundredth = 0.42
20. 2.833 rounded nearest hundredth = 2.83
21. 3.667 rounded nearest hundredth = 3.67
what are 3 points you can use to solve the equation:
-x-2y=8
Answer:
no idea
Step-by-step explanation:
please somebody i need help with this question :c
A rectangular prism is completely packed with 84 cubes of edge length fraction 1 over 3 inch, without any gap or overlap. Which of these best describes the volume of this rectangular prism?
Step-by-step explanation:
The volume of a cube is s^3 where s is the length of a side..
So If you have 84 cubes with sides of 1/3 in the total volume is:
v=84(1/3)^3 in^3
v=84/27 in^3
v=28/9 in^3
V=3.11 in^3 (to nearest hundredth of a cubic inch)
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
write the standard form of the equation that is perpendicular to y = 5x + 4 and goes through point (3, -2).
Answer:
y=-1/5x-7/5
Step-by-step explanation:
y=5x+4
(y+2)=-1/5(x-3)
y+2=-1/5x+3/5
y+10/5=-1/5x+3/5
y=-1/5x-7/5
Answer: x+5y= -7
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}