Answer:
18 hours
Step-by-step explanation:
$108 = 9 hours
$216 = x hours
we want to get to $216 from the original equation. one thing we can do to get there is to figure out what we need to multiply 108 by to get 216. to figure this out, we can calculate 216/108 = 2.
therefore, we can multiply both sides of the original equation by 2 to get
$216 = 9 * 2 hours = 18 hours as our answer
What is the measure of x?
Angles are not necessarily drawn to scale.
Answer:
180-97=83
x=83
Step-by-step explanation:
ILL MARK U BRILLIANT PLEASE I NEED HELP
1.In which three ways can you represent a relationship between two quantities?
1.
2.
3.
Answer:
table, graph or equation
For each diagram below, write and solve an equation.
A man saves $85.50 each month. Up to now he has saved $2137.50. How much were his total savings
15 months ago?
Answer:
$855.00
Step-by-step explanation:
85.50 x 15 = 1,282.50
2,137.50 - 1,282.50 = 855.00
cos (3 X +6 ) =sin 30
ILL GIVE THE BRAINLIEST
Use textual evidence and inferences drawn from The Outsiders to describe how this interaction between Ponyboy and Cherry demonstrates that human interactions are challenging. Highlight the specific textual evidence and make annotations to record your inferences.
Use textual evidence
Inference interaction between Ponyboy and Cherry
Demonstrates human interactions are challenging
Write a short answer response:
Make sure to include T. A. G. S with answer.
Textual evidence. Explanation of evidence
Analysis and concluding sentence
Inference can be used in narration after reasonable logical constructions have been made through the use of evidence.
What is Inference?This refers to the conclusion reached based on the use of evidence and deductive reasoning.
Hence, inference is useful when finding a conclusion about something based on already made input about a character and their changing roles in a literary text.
Please note that your question is incomplete so I gave you a general overview to help you get a better understanding of the concept.
Read more about inferences here:
https://brainly.com/question/24729498
The radius of a circle is 9 miles. What is the circle's area?
Use 3.14 for .
give brainliest
Answer:
254.34 miles²
Step-by-step explanation:
How do we find the area of a circle?
The area of a circle can be found using πr², where r = radius. We have the radius as 9 miles, and pi is shortened to 3.14.Solving
[tex]3.14*9^2[/tex] [tex]3.14*81[/tex][tex]254.34[/tex]Therefore, the area is 254.34 miles².
Have a lovely rest of your day/night, and good luck with your assignments! ♡
Answer:
Formula for area of a circle:
πr^2,
where pi is equal to 22/7 or 3.14
and r is the radius that is being squared
Plug in the actual values to this formula to find the area;
a = πr^2
a = 3.14 x 9^2
a = 3.14 x 81
a = 254.34, your answer is 254.34 square miles.
I need the right answer pls :D
Answer:
x = 49
Step-by-step explanation:
If you split an equilateral triangle exactly in half you create two Right 45 triangles or 30-60-90 triangles
Answer:
30-60-90
Because the angle of 60 splits and you get two 30 and the 90
Step-by-step explanation:
Jan went grocery shopping and only bought items which had been marked down. The items she bought, along with their prices, can be seen below. Item Final Price Markdown Chicken $8. 47 15% Milk $2. 16 20% Onions $0. 89 10% Potato chips $1. 45 12% Oranges $1. 36 25% Flour $4. 39 18% Compared to if she had bought no items on sale, by what percent was Jan’s total grocery bill discounted? Round to two decimal places. A. 15. 85% b. 16. 50% c. 16. 65% d. 17. 50%.
The percent Jan’s total grocery bill discounted when she bought no items on sale is 16.65%.
What is percentage ?Percentage of a number is the part of the number expressed in the in every hundred. Percentage of a number is expressed with the symbol '%'.
Jan went grocery shopping and only bought items which had been marked down.
The items she bought, along with their prices, can be seen below.
Item Final Price MarkdownChicken $8. 47 15% Milk $2.16 20% Onions $0. 89 10% Potato chips $1. 45 12% Oranges $1.36 25% Flour $4. 39 18%Total price of the items is $18.72. Now find out the original price using the above formula for each of the item. The sum of original price of all the items will be $22.46.
Thus, the discounted price will be,
[tex]P_d=\dfrac{18.72}{22.46}\times100\\P_d=83.35\%[/tex]
The overall markdown is,
[tex]\rm Markdown=100-18.35\\\rm Markdown=16.65\%[/tex]
Thus, the percent Jan’s total grocery bill discounted when she bought no items on sale is 16.65%.
Learn more about the percentage here;
https://brainly.com/question/24304697
Solve.
–8x − 2y = –20
x + 2y = 13
Answer:
X=1, y=6
Step-by-step explanation:
Let's solve your system by substitution.
−8x−2y=−20;x+2y=13
Rewrite equations:
x+2y=13;−8x−2y=−20
Step: Solvex+2y=13for x:
x+2y=13
x+2y+−2y=13+−2y(Add -2y to both sides)
x=−2y+13
Step: Substitute−2y+13forxin−8x−2y=−20:
−8x−2y=−20
−8(−2y+13)−2y=−20
14y−104=−20(Simplify both sides of the equation)
14y−104+104=−20+104(Add 104 to both sides)
14y=84
14y
14
=
84
14
(Divide both sides by 14)
y=6
Step: Substitute6foryinx=−2y+13:
x=−2y+13
x=(−2)(6)+13
x=1(Simplify both sides of the equation)
Answer:
x=1 and y=6
Hope this helped!
4. Tanya has the equation x - 2 = 2x - 4. She states that adding x + 2 to both sides will keep the
solution set the same because of the additive property of equality. Diego states that you could
also multiply both sides of Tanya's equation by x+2 and have the same solution set because of
the multiplicative property of equality.
a) is tanyas statement correct?
b)is diego’s statement correct ?
Answer:
Tanya is correct.
Step-by-step explanation:
a). Tanya has the equation,
x - 2 = 2x - 4
x - 2x = 2 - 4
-x = -2
x = 2
By adding (x + 2) on both the sides of the equation,
(x - 2) + (x + 2) = (2x - 4) + (x + 2)
2x = 3x - 2
2x - 3x = -2
x = 2
Tanya is correct.
b). By Diego's statement
(x - 2)(x + 2) = (2x - 4)(x + 2)
x² - 4 = 2x²- 8
x² - 2x² = 4 - 8
-x² = -4
x² = 4
x = ±2
Therefore, Diego's statement is incorrect.
KT is tangent to circle L and the central angle mZTLK = 55°. What is mZLKT? K T L
The measure of m<LKT from the figure is 35 degrees
Tangential line to a circleLine tangential to a circle is at 90 degrees to the circle.
Given the following parameter
m<TLK = 55 degrees
According to the theorem above:
m<TLK + m<LKT = 90
m<LKT = 90- m<TLK
m<LKT = 90 -55
m<LKT = 35 degrees
Hence the measure of m<LKT from the figure is 35 degrees
Learn more on circle theorem here:
https://brainly.com/question/26594685
what is the surface area of the sphere shown below with a radius of 6
Answer:
S.A=452.3893421
Step-by-step explanation:
Aeen is drinking a beverage that has a pH of 3. 3. Marien is drinking a beverage that has a pH of 2. 7. About how many times the hydrogen ion concentration of Aeen’s drink is the hydrogen ion concentration of Marien’s drink? Round to the nearest whole number.
The number of times the hydrogen ion concentration of Aeen’s drink is the hydrogen ion concentration of Marien’s drink is 4 approx.
How to decide how many times some number is bigger?The phrase "times bigger" shows this:
If a number 'x' is 't' times bigger than 'y', then that means:
[tex]x = t \times y[/tex]
It is because 'y' had to multiply itself with 't' to get in equal level of 'x'
How to find the hydrogen ion concentration from the pH value?A solution with 'x' as its pH contains [tex]10^{-x} mol/L[/tex] of hydrogen ions.
For the considered case, we have:
pH of beverage drank by Marien = 2.7,Thus, its hydrogen ion concentration is [tex]10^{-2.7}[/tex] = x (say)
pH of beverage drank by Aeen = 3.3,Thus, its hydrogen ion concentration is [tex]10^{-3.3}[/tex] = y (say)
Then, let x is t times bigger than y, then that means:
[tex]x = t\times y\\\\t = \dfrac{x}{y} = \dfrac{10^{-2.7}}{10^{-3.3}} = 10^{-2.7 - (-3.3)} = 10^{-0.6} \approx 4[/tex]
It is because of the property [tex]a^b \times a^c = a^{b+c}[/tex]
Thus, hydrogen ion concentration of Marien's drink is approx 4 times the hydrogen ion concentration of Aeen's drink.
Learn more about hydrogen ion concentration here:
https://brainly.com/question/3072484
If 2 inches on a map represents 25 miles, how many inches would represent 225 miles?
Answer:
18 inches
Step-by-step explanation:
It would be 18 inches because if 2 inches represent 25 miles and 225 divided by 25 is 9 that would mean 18 inches would be 225 because instead of it being 25*18=225 which it doesn't it would be 12.5*18=225 which is true
CAN ANYONE HELP KE WITH THESE TWO QUESTIONS AND SOLVE I WILL GIVE BRANIEST
Find the volume of the cylinder.
Find the volume of a cylinder with the same radius and double the height.
Answer:
Original cylinder:
Exact: [tex] V = 243 \pi~in.^3 [/tex]
Approximate: [tex] V = 763.4~in.^3 [/tex]
Double height cylinder:
Exact: [tex] V = 486 \pi~in.^3 [/tex]
Approximate: [tex] V = 1526.8~in.^3 [/tex]
Step-by-step explanation:
Original cylinder:
[tex] V = \pi r^2 h [/tex]
[tex]V = \pi \times (9~in.)^2 \times 3~in.[/tex]
Exact: [tex] V = 243 \pi~in.^3 [/tex]
Approximate: [tex] V = 763.4~in.^3 [/tex]
Cylinder with the height doubled:
[tex] V = \pi r^2 h [/tex]
[tex]V = \pi \times (9~in.)^2 \times 6~in.[/tex]
Exact: [tex] V = 486 \pi~in.^3 [/tex]
Approximate: [tex] V = 1526.8~in.^3 [/tex]
so for the first question its answer is 763.02 in and for the second one its 1,526.04
Step-by-step explanation:
1.
V = π r^2h
π = 3.14
V = 3.14 x 9^2 x 3
V= 3.14 x 81 x 3
V = 3.14 x 243
V = 763.02 in
2.
So we already know that 9^2 is 81 and that double 3 is 6
V = 3.14 x 81 x 6
V = 3.14 x 486
V = 3.14 x 486
V = 1,526.04 in
Six more than the quotient of twice a number and 3
Answer:
2x/3+6
Step-by-step explanation:
The quotient of twice a number and 3, is 2x divided by 3. Six more is 2x/3+6
HELP! pls helpppppppppppppppppppp
Answer:
4(x+6)(x+10)
Step-by-step explanation:
4(x^2 + 16x + 60)
4(x+6)(x+10)
and x=-6 and x=-10
PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP
Answer:
(0, 6)
explanation:
original coordinates of C: (5, -6)if reflected over x-axis, then use the formula: (x,y) → (x, -y)
new coordinates: (5, 6)then if translated -5 horizontally, there will be change in x axis
new coordinates: (5-5, 6) → (0, 6)In 1925, airplane engines were cooled with water. Water freezes at a temperature of 32º Fahrenheit. Average winter low temperatures in Alaska are 50º colder than that. What is Average winter low temperature in Alaska?
Answer:
From November to March, the temperature in Alaska is between 0°F/-18°C and -30°F/-35°C, which is very cold. May and September are both often the driest and the wettest months in Alaska's summer.
I hope this helps you
:)
If a skateboarder performs 20 tricks during practice and 45% of the tricks are heelflips, how many heelflips does the skateboarder perform?
21+4(3^2-5)
PLEASE ANSWER FAST
37
Step-by-step explanation:
21 + 16
HOPE THIS HELPS!
evaluate the expression when a=-2 and y=7. 8y-a
Answer:
58
Step-by-step explanation:
Given :-
a = -2y = 7To solve :-
8y - aSolving :-
8(7) - (-2)56 + 258Answer:
58
is the final answer
Step-by-step explanation:
8(7)- (-2)=
56 +2= 58
I need answer I am having brain damage : (
Answer:
a = 8/3b or b = 3/8a
Step-by-step explanation:
The fractions present in the table, 24/9 and 40/15, are equivalent to 8/3, showing a linear relationship between the variables a and b. Knowing this, reducing any of the 3 fractions to its lowest form will allow you to find the information necessary to develop an equation. As 8/3 turns out to be the simplest form of any of the fractions, the equation is a = 8/3b, or, if you decide to reverse the variables, b = 3/8a.
match each sequence with one of the recursive definitions. note that only the part of the definition showing the relatopmship between the current term and the precious term is giving so as not to give away the solutions. one of the sequences matches two recursive definitions. a. a(n) = a(n-1)-4 b. b(n)=b(n-1)+0 c. c(n)= -1/2 x c(n-1) d. d(n)=1xd(n-1)
9514 1404 393
Answer:
A C B, DStep-by-step explanation:
1. The common difference is -4, which matches recursive relation A.
2. Signs alternate, so the common ratio must be negative, matching recursive relation C.
3. The common difference is 0, and the common ratio is 1, so both relations B and D are a match.
_____
An arithmetic sequence with common difference d can be described by the recursive relation ...
f(n) = f(n-1) +d
A geometric sequence with common ratio r can be described by the recursive relation ...
f(n) = r·f(n-1)
One typically has to look at only the first three terms to determine if they have a constant difference or a constant ratio.
Which of the following does an appropriately cautious reading of a receipt entail? I. Making sure that the items charged are the same as the items received. II. Asking for a second copy for your records. III. Checking to see if all of the discounts were applied properly.
Answer:
C
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
it wouldn't be asking for a second copy of your records, but both , making sure that the items charged are the same as the items received and Checking to see if all of the discounts were applied properly is correct
Hector's service club is raising money by wrapping presents in the mall. The function f\left(x\right)=3xf(x)=3x describes the amount of money, in dollars, the club will earn for wrapping x presents. They only have enough wrapping paper to wrap 1000 presents. What does f\left(658\right)f(658)?
Given:
The function f(x) describes the amount of money, in dollars, the club will earn for wrapping x presents.
[tex]f(x)=3x[/tex]
To find:
The f(658).
Solution:
We have,
[tex]f(x)=3x[/tex]
Substitute x=658 to find the value of f(658).
[tex]f(658)=3(658)[/tex]
[tex]f(658)=1974[/tex]
It means, the club will earn $1974 for wrapping 658 presents.
Therefore, [tex]f(658)=1974[/tex].
Question 17
1 pts
Determine whether QR and ST are parallel, perpendicular,
or neither.
Q(-6, 11), R (2, -1), S(-4, 8), T(-1, 10)
Answer:
Perpendicular
Step-by-step explanation:
Remember that:
Two lines are parallel if their slopes are the same. Two lines are perpendicular is their slopes are negative reciprocals. And two lines are neither (a.k.a intersecting) if they are neither parallel nor perpendicular.So, let's find the slope of QR and ST.
QR)
We can use the slope formula:
[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Let Q(-6, 11) be (x₁, y₁) and R(2, -1) be (x₂, y₂). Substitute:
[tex]m=\frac{-1-11}{2-(-6)}[/tex]
Subtract:
[tex]m=-12/8=-3/2[/tex]
So, the slope of QR is -3/2.
ST)
Let S(-4, 8) be (x₁, y₁) and T(-1, 10) be (x₂, y₂). Substitute:
[tex]m=\frac{10-8}{-1-(-4)}[/tex]
Subtract:
[tex]m=2/3[/tex]
So, the slope of ST is 2/3.
The negative reciprocal of -3/2 is 2/3.
And the negative reciprocal of 2/3 is -3/2.
So, the slopes are indeed negative reciprocals of each other.
So, QR and ST are perpendicular.
Perpendicular hope this helped
What is the midpoint between (-6, 3) and (4, 9)?
======================================================
Explanation:
The x coordinates of the two points are -6 and 4. They add to -6+4 = -2. Cut this in half to get -2/2 = -1.
The y coordinates of the two points are 3 and 9. They add to 3+9 = 12. Cut this in half to get 12/2 = 6.
The midpoint formula is
[tex]\left(x_m, y_m) = \left(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2}\right)[/tex]
In short, you add the corresponding coordinates and then divide by 2.