fixed cost= $8
cost= $4.50
payed= $50
recieved= $10.50
to find:how many days Hannah rented the bike.
solution:let the unknown be ( x )
[tex]x = 50 - (10.50 + 8)[/tex]
[tex]x = 50 - 18.50[/tex]
[tex]x = 13.50[/tex]
[tex]x = \frac{13.50}{4.50} [/tex]
[tex]x = 7[/tex]
hence, Hannah rented the bike for 7 days.
the size of a triangle are X cm, (X-5)cm and (X+3)cm long. if the perimeter is 25 cm, find the length of the three sides?
Step-by-step explanation:
let's be more detailed than the other answer :
the perimeter is the sum of all sides of an object. in case of a triangle, well, that is the sum of all 3 sides.
so,
25 = x + (x-5) + (x+3) = x + x - 5 + x + 3 = 3x - 2
27 = 3x
x = 9
so, the sides are
x = 9 cm
(x-5) = 9 - 5 = 4 cm
(x+3) = 9 + 3 = 12 cm
Estimate the product of 67 x 23
by rounding to the nearest ten.
Answer:
1400
Step-by-step explanation:
67 rounds to 70 because 7 is bigger than 5 so it rounds up. 23 rounds down since 3 is smaller than 5.
So, 70x20=1400
26.
ZT.
Q
R
(9x - 17)
(4x + 28)
T
S
Simplifying
9x + -17 = 4x + 28
Reorder the terms:
-17 + 9x = 4x + 28
Reorder the terms:
-17 + 9x = 28 + 4x
Solving
-17 + 9x = 28 + 4x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4x' to each side of the equation.
-17 + 9x + -4x = 28 + 4x + -4x
Combine like terms: 9x + -4x = 5x
-17 + 5x = 28 + 4x + -4x
Combine like terms: 4x + -4x = 0
-17 + 5x = 28 + 0
-17 + 5x = 28
Add '17' to each side of the equation.
-17 + 17 + 5x = 28 + 17
Combine like terms: -17 + 17 = 0
0 + 5x = 28 + 17
5x = 28 + 17
Combine like terms: 28 + 17 = 45
5x = 45
Divide each side by '5'.
x = 9
Simplifying
x = 9
-2x^2 + 4x + 16 in vertex form
Answer:
y = - 2(x - 1)² + 18
Step-by-step explanation:
- 2x² + 4x + 16 ← factor out - 2 from the first 2 terms
= - 2(x² - 2x) + 16
using the method of completing the square
add/subtract ( half the coefficient of the x- term)² to x² - 2x
= - 2(x² + 2(- 1)x + 1 - 1) + 16
= - 2(x - 1)² + 2 + 16
= - 2(x - 1)² + 18 ← in vertex form
What is the area of the base of a cylinder with a volume of 2407 in.3 and a height of 16 inches?
Can someone PLS help me?
Answer:
15π in²
Step-by-step explanation:
Formula
V = πr²hSolving
240π = πr² × 16πr² (Area) = 15π in²newton watches a movie with his friends. they watch 50% of the movie and then takes a break. they then watch the remaining 65 minutes = how long was the movie
Answer:
130 minutes
Step-by-step explanation:
They watched 50% of movie, means 50% left unwatched
Remaining length = 65 minutes = 50% of movie
Movie length = 65 *2 = 130 minutes
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER
Answer:
a = 24
Step-by-step explanation:
a - 1.5 = 22.5
a = 24
you can plug it into the other 2 to make sure it is right my brain hurts so i won't.
Have a nice day! :) and btw people will think it is a scam because 2 answers are allowed right so the points split in half and the person answering will only get 10 points
If tan A=2 sin A .Then find the value of A, given 0<\= A <\=360.
[tex]tan(A)=2sin(A) \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \cfrac{sin(A)}{cos(A)}~~ = ~~2sin(A)\implies sin(A)=2sin(A)cos(A) \\\\\\ sin(A)-2sin(A)cos(A)=0\implies sin(A)[ ~~ 1~~ - ~~2cos(A) ~~ ]=0 \\\\[-0.35em] ~\dotfill\\\\ sin(A)=0\implies A=sin^{-1}(0)\implies A= \begin{cases} 0\\ 180^o\\ 360^o \end{cases} \\\\[-0.35em] ~\dotfill\\\\ 1-2cos(A)=0\implies 1=2cos(A)\implies \cfrac{1}{2}=cos(A) \\\\\\ cos^{-1}\left( \cfrac{1}{2} \right)=A\implies A= \begin{cases} 60^o\\ 300^o \end{cases}[/tex]
Using identities, evaluate 11.2²
[tex]~~~~(11.2)^2\\\\=(11+0.2)^2\\\\=11^2 + 2(11)(0.2) + (0.2)^2\\\\=121+4.4+0.04\\\\=125.44[/tex]
Hey there!
11.2^2
= (11.2)^2
= 11.2 * 11.2
= 125.44
Therefore, the answer should be: 125.44
Good luck on your assignment & enjoy your day!
~Amphitrite1040:)
please help me find the distance between the two polar coordinates
thank you!
Answer:
⅜ is the distance
Hope you found this answer very useful
Determine whether each situation calls for a survey, an experiment, or an observational study. Explain your reasoning.
1. A research group wants to determine if playing music in a patient waiting room reduces stress levels.
2. A nutrition research group wants to determine whether ninth-grade students who reported having eating breakfast
every school morning had higher standardized test scores than who did not report having eaten breakfast every school
morning.
3. A restaurant plans to ask 100 randomly selected customers to determine which menu item is most popular.
Find the perimeter
................
Answer:
119 5/7
Explanation:
I’ve attached my worK
Madison hits a tennis ball with an initial velocity of 18 m/s straight up into the air. When she hits the ball, it is 1.2 m above the ground
Which equation can be used to find the time, t, it takes for the ball to reach the ground?
A) -16t^2 + 18t+ +1.2=0
B) 4.9t^2 + 18t + 1.2 = 0
C) 4.9^2 + 1.2t + 18 = 0
D) -16t^2 +1.2t + 18 = 0
A jar contains 100 gumballs. There are 40 blue gumballs, 3 green gumballs, 27 red gumballs, and 30 yellow gumballs. What is the probability of randomly selecting a red gumball?
Answer:
27%
Step-by-step explanation:
Red gumballs / total = 27/100 = 27%
Five friends are sharing 6 cups of lemonade. If they share the lemonade equally, how many cups
will each friend get?
Answer:
[tex]1\frac{1}{5}[/tex]
Step-by-step explanation:
6/5
= 1 1/5
Answer:
[tex]1\frac{1}{5}[/tex]
Step-by-step explanation:
First, we do 6 / 5 = 1.2. We do this because we are sharing 6 cups with 5 friends - we are dividing 6 cups between 5 friends.
So, each friend will get 1.2 cups. But, the question is asking for a fraction. 0.2 is the same as [tex]\frac{1}{5}[/tex], so each person will get [tex]1\frac{1}{5}[/tex]
Alternatively, you could do [tex]\frac{6}{5} = 1\frac{1}{5}[/tex]
Hope this makes sense.
- profparis
surface area of hemisphere with diameter of 18
Answer:
In terms of pi: 243[tex]\pi[/tex]
in decimal form: 763.407
Step-by-step explanation:
to find surface area of a hemisphere the formula is,
[tex]3\pi r^{2}[/tex]
diameter (d) = 18
radius = d / 2 = 18 / 2
radius = 9
[tex]3\pi (9)^{2} \\3\pi (81)\\243\pi \\OR\\763.407[/tex]
Need help with this find the value of x
What is the sum 2, 3, 4, and 5?
Answer:
14
Step-by-step explanation:
We can find the sum of these numbers by adding them together.
The cumulative rule of addition lets us add numbers together in any order we want.
So, for 2 + 3 + 4 + 5 …
2 + 3 = 5
So now we have 5 + 4 + 5
5 + 4 = 9
Now we have 9 + 5
And 9 + 5 = 14
So, your answer is 14
Hope this helps!
Using the quadratic formula to solve 2x² - 4x-7, what are the values of x?
ọ trở lại
O 18 -√101
28/101
.
012-√51
[tex]~~~~~~~~~~~~\textit{quadratic formula} \\\\ y=\stackrel{\stackrel{a}{\downarrow }}{2}x^2\stackrel{\stackrel{b}{\downarrow }}{-4}x\stackrel{\stackrel{c}{\downarrow }}{-7} \qquad \qquad x= \cfrac{ - b \pm \sqrt { b^2 -4 a c}}{2 a} \\\\\\ x= \cfrac{ - (-4) \pm \sqrt { (-4)^2 -4(2)(-7)}}{2(2)} \implies x= \cfrac{ 4 \pm \sqrt { 16 +56}}{ 4 } \\\\\\ x=\cfrac{4\pm 6\sqrt{2}}{4}\implies x=\cfrac{2\pm 3\sqrt{2}}{2}\implies x= \begin{cases} \frac{2\pm 3\sqrt{2}}{2}\\\\ -\frac{2\pm 3\sqrt{2}}{2} \end{cases}[/tex]
The circumference of a circle is 37.68 miles. What is the circle's diameter?
Use 3.14 for .
Answer:
12 miles
Step-by-step explanation:
[tex]C=\pi d\\37.68=3.14d\\12=d[/tex]
Thus, the diameter of the circle is 12 miles
Why are 1995 pennies worth less than 2018 pennies?
Answer:
Most 1995 pennies in circulated condition are only worth their face value of $0.01. These coins can only sell for a premium in uncirculated condition. The 1995 penny with no mint mark and the 1995 D penny are each worth around $0.30 in uncirculated condition with an MS 65 grade.
Step-by-step explanation:
hope this helps.
The figure below shows a circular lawn. Its diameter is 26ft. 26ft (a) Use the calculator to find the area and circumference of the lawn. Use 3.14 for π in your calculations, and do not round your answers. Make sure to include the correct units. Area: Circumference: (b) Fertilizer will be applied to the lawn. Which measure would be used in finding the amount of fertilizer needed? Circumference Area (c) The lawn will be surrounded by tape. Which measure would be used in finding the amount of tape needed? Circumference Area
The area and the circumference of the circle are 530.93 square ft and 81.68 ft. If fertilizer will be applied to the lawn. Then the area is used. If the lawn will be surrounded by tape. Then the circumference is used.
What is a circle?It is the centre of an equidistant point drawn from the centre. The radius of a circle is the distance between the centre and the circumference.
The figure below shows a circular lawn. Its diameter is 26 ft.
Then the area of the circle will be
[tex]\rm A = \dfrac{\pi }{4} d^2\\\\A = \dfrac{\pi }{4} \times 26^2\\\\A = 530.93 \ \ ft^2[/tex]
Then the circumference of the circle will be
Circumference = π d
Circumference = π × 26
Circumference = 81.68 ft
If fertilizer will be applied to the lawn. Then the area is used.
If the lawn will be surrounded by tape. Then the circumference is used.
More about the circle link is given below.
https://brainly.com/question/11833983
#SPJ1
Find the length x.
pls help
Answer:
x = 6
Step-by-step explanation:
To find x we set up an equation as so:
[tex]\frac{4.5}{x} =\frac{6}{8}[/tex]
Then we solve by multiplying 4.5 by 8 and 6 by x
[tex]6x=36[/tex] Solve for x
[tex]\frac{6x}{6} =\frac{36}{6}[/tex] x = 6
To check our answer when we substitute x or 6 we divide to make sure both sides equal the same number
[tex]\frac{4.5}{6} =\frac{6}{8}[/tex] when divided both equals 0.75
Linda hiked 10 miles last weekend. She plans to hike 3/5 of that distance next weekend. enter the distance in miles that Linda plans to hike next weekend
Answer:
6 Miles
Step-by-step explanation:
What do we know: Linda hiked 10 miles last weekend, and she plans to walk 3/5ths of that next weekend.
Thus, we take 10 and multiply it by 3/5.
To understand it all better, let's write the equation like this, X will be the number of miles Linda plans to hike next weekend.
[tex]\frac{10}{1}[/tex]×[tex]\frac{3}{5}[/tex] = [tex]\frac{30}{5}[/tex]
Afterwards we can simplify like so, factoring 5 from both the numerator and the denominator:
[tex]\frac{5(6)}{5(1)}[/tex]
The 5's in the numerator and denominator cancel out, leaving us with:
[tex]\frac{6}{1}[/tex]
Or in simpler terms 6. Thus we can know that Linda will hike 6 miles next weekend.
Evaluate the expression when a = 4, b=8 and c=12 4(a+b)-c
Answer:
36
Step-by-step explanation:
4(a+b)-c
4(4)+4(8)=16+32-12
48-12=36
How much joe pay in dollars to get 40 euros
Answer:
42$
Step-by-step explanation:
Hope it helps :)
Question 9 of 10
A system of two equations is shown below. What will you need to multiply the
top equation by in order to solve this system using the elimination method?
X +2y = 11
6X + 4y = 34
A. 6
• B. -2
C. 2
( D. -4
Answer:
by 6
Step-by-step explanation:
Isolate x for x + 2y= 11: x= 11- 2y
Substitute x =11 -2y
6(11 - 2y) + 4y = 34|
Simplify
[66 -8y= 34]
Isolate y for 66 - 8y= 34: y =4
For x = 11 - 2y
Substitute y = 4
X= 11-2 x 4
Simplify
X=3
The solutions to the system of equations are:
X=3,y=4
Find the midpoint of the line segment joining the points C= (4,7) and D= (-2,-3)
Answer:
(1, 2)
Step-by-step explanation:
Hi there!
We are given two points - (4, 7) and (-2, -3)
We want to find the midpoint between these two points
The midpoint can be found using the formula [tex](\frac{x_1 + x_2}{2}, \frac{y_1+y_2}{2})[/tex], where [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] are points
We have everything we need to find the midpoint, but let's label the values of the points to avoid any confusion & mistakes
[tex]x_1=4\\y_1=7\\x_2=-2\\y_2=-3[/tex]
Now substitute into the formula
[tex](\frac{x_1 + x_2}{2}, \frac{y_1+y_2}{2})[/tex]
[tex](\frac{4+ -2 }{2}, \frac{7+-3}{2})[/tex]
The pluses can be replaced with minus signs:
[tex](\frac{4 -2 }{2}, \frac{7-3}{2})[/tex]
Now subtract
[tex](\frac{2 }{2}, \frac{4}{2})[/tex]
Divide
(1,2)
The midpoint is (1, 2)
Hope this helps!
Plss help meee!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
m<2 + 108 = 180
m<2 = 72
Which steps should be used to graph the equation below? y - 4 = 1/3 * (x + 2)
Answer:
Step-by-step explanation:
y - 12/3 = 1/3x + 2/3
y = 1/3x + 14/3