If y varies inversely with x, and y = 20 when x = 5, then find the constant of variation (a).
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this is the correct answer
Related Questions
476 Marks
boole
Calculate the area of this triangle.
17 cm
8 cm
15 cm
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Answer:
Step-by-step explanation:
sides =8 cm, 17 cm and 15 cm
Area of triangle by Hero's Formula,
S=a+b+c/2
S=17+8+15/2
S=40/2
S=20
A=[tex]\sqrt{s(s-a)(s-b)(s-c)}[/tex]
A=[tex]\sqrt{20(20-17)(20-8)(20-15)}[/tex]
A=[tex]\sqrt{(20)(3)(12)(5)}[/tex]
A=[tex]\sqrt{3600}[/tex]
A=60 [tex]cm^{2}[/tex]
DO ALL 4 QUESTIONS FOR BRAINLY SHOW WORK.
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find x and y in each parallelogramn
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Step-by-step explanation:
x = 30 , y = 46 x = 15 , y = 11 x = 2 ,. y = 44. x = 10 , y = 40
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hope this will be helpful to you .if you find it useful ☺️.
Write an equivalent expression using the
associative property for (7 + 8) + 10.
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[tex]\textsf{Hey there!}[/tex]
[tex]\bold{(7+8)+10}\\\\\bold{Do\ PEMDAS\ to\ solve}\\\\\bold{Parentheses}\\\bold{Exponents}\\\bold{Multiplication}\\\bold{Division}\\\bold{Addition}\\\bold{Subtraction}\\\\\\\bold{(7+8)+10}\\\bold{(7+8)=15}\\\bold{15+10=\underline{25}}\\\\\\\\\\\boxed{\boxed{\bold{Answer: 25}}}}\huge\checkmark[/tex]
[tex]\textsf{Good luck on your assignment and your day!}[/tex]
~[tex]\frak{Amohitrite1040:)}[/tex]
PLZZZZ HELLP MEEEEEEEEE IL GET U BRIANIEST
(or whatever its called)
what value of y makes the equation true -6( y + 15) = -3y + 6
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Answer:
-32
Step-by-step explanation:
do you need me to explain?
Answer:
y = -32
Step-by-step explanation:
thanks for helping me
5/8 + 3/4 / -2/3- 5/6
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Answer:
-11/12
Step-by-step explanation:
there is 2 parts to this question pls answer both!
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Final sale price would be 53.50 dollars
Hope it helps
A basketball player made 35 baskets in a season. Of these 60% were three point shots. How many three point shots did the player make
Answers
Step-by-step explanation:
the Boscombe all very well football match well because I am 15 year
A lawn mower costs $250. Today it is on sale for $150. What percent has
been taken off the price of the lawn mower? (What percent is 150 of 250?)
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250/100=1%. 2.5=1%
150/2.5=60
So the amount has been decreased by 40% :)
Or, you could do:
(150/250)x100, which also shows that 150 is 60 of 250
Solve for the following triangle
Answers
Answer:
50
Step-by-step explanation:
as 40 + 90 + ? = 180 (Angle sum property)
so ? = 180 -130 = 50
We know the 2 angles are 90 and 40, To get the third angle you add 90 + 40 to get 130.
Now minus the hole area of the right triangle from the two added angles, (180 - 130) to find out the missing angle is 50 degrees.
Restaurants frequently add an 18% tip on the pre-tax bill when the party is 8 people or more. The tax is calculated based on the bill before the tip is included. Last night, friends went out to dinner and decided to split the bill evenly. If the bill without tax or tip was $ and the tax was %, how much did each person owe?
Answers
The money each person owes at restaurants for dinner is $1.41.
What is tax?In mathematics, the tax calculation is related to the selling price and income of taxpayers. It is a charge imposed by the government on the citizens for the collection of funds for public welfare and expenditure activities. There are two types of taxes: direct tax and indirect tax.
Given that, Restaurants frequently add an 18% tip on the pre-tax bill when the party is 8 people or more.
The first step is to determine the total cost of the dinner. The total cost includes the cost of the dinner, tip and tax.
Total cost = Cost of the dinner + Tax + Tip
Tax = Cost of the meal x Percentage tax
Tax = $114.46 x 5%
Tax = $114.46 x 0.05 = $5.723
Tip = Percentage tip x Cost of the diner
Tip = 18% x $114.46
Tip = 0.18 x $114.46
Tip = $20.60
Total cost = $114.46 + $20.60 + $5.72 = $140.78
Amount each person owes = Total cost of the meal / Number of people
Amount each person owes = $140.78/10 = $1.41
Therefore, the money each person owes at restaurants for dinner is $1.41.
To learn more about the tax visit:
brainly.com/question/16423331.
#SPJ2
"Your question is incomplete, probably the complete question/missing part is:"
Restaurants frequently add an 18% tip on the pre-tax bill when the party is 8 people or more. The tax is calculated based on the bill before the tip is included. Last night, 10 friends went out to dinner and decided to split the bill evenly. If the bill without tax or tip was $114.46 and the tax was 5%, how much did each person owe?
which choice is NOT a good example of a line of best fit?
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Answer:
B
Step-by-step explanation:
it's not touch the Y axis nor the X axis?
find the value of x and the measure of each angle
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Answer:
you can just type out like 30 degrees, 50 degrees, and 100 degrees or something like that
Step-by-step explanation:
Tyler has 45% of his pay check remaining. What fraction of his pay check does he have remaining?
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Answer:
If he has 45% of his cheak remaining we already have the remaining so we just to turn it into a fraction
First we put it over 100
45
100
Then we reduce it to the lowest terms
which would be
9/20
raise r to the 2nd power, then find the quotient of the result and a
Do not simplify any part of the expression.
please help me!!!
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Answer:
Step-by-step explanation:ncncbnc
A spinner contains the numbers 1 through 70. What is the probability that the spinner will land on a number that is not a multiple of 12?
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Answer:
5 out of 70
Step-by-step explanation:
all you have to do is figure all of the multiple of 12 in 70 which is 12, 24, 36, 48, and 60 so that's 5 numbers out of the 70
plz help!!!!!!!!!!!!!!!!!!!!!
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Answer:
a) direct
b) $3
c) y = 3x
d) To buy 4 pens it costs $12
e) 8 pens
the equation is
7(4x-2)
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Answer:
28x-14
Step-by-step explanation:
Is it possible to construct a sector such that the length of the radius is equal to the length of the arc created by its central angle?
Explain why or why not, and include the radius lengths and central angle measures that you tried.
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Answer:
No
A 30 degree central angle would be a 30 degree arc.
The sin of 30 degrees is 0.5 so the arc would be just greater than 15, much less than 30.
Question 7 of 10
For what value of x is the rational expression below equal to zero?
2-x/2 + x
A. O
B. 2
O C. -2
O D.-1
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Step-by-step explanation:
if you divide 0 by any number you will get 0!!!
if you will substitute x for 2 you will have:
2-2/2+2 = 0/4 = 0
The endpoints of QR are
Q(1, 6) and R(-7, 3). Find the coordinates of the midpoint M.
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Answer:
[tex]\displaystyle (-3,\frac{9}{2})[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightAlgebra I
Coordinates (x, y)Midpoint Formula: [tex]\displaystyle (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]Step-by-step explanation:
Step 1: Define
Endpoint Q(1, 6)
Endpoint R(-7, 3)
Step 2: Find Midpoint
Simply plug in your coordinates into the midpoint formula to find midpoint
Substitute in points [Midpoint Formula]: [tex]\displaystyle (\frac{1-7}{2},\frac{6+3}{2})[/tex][Fractions] Subtract/Add: [tex]\displaystyle (\frac{-6}{2},\frac{9}{2})[/tex][Fraction] Divide: [tex]\displaystyle (-3,\frac{9}{2})[/tex]please help
10= t+13/2
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Answer:
[tex]t + \frac{13}{2} = 10 \\ t = 10 - \frac{13}{2} \\ t = \frac{7}{2} [/tex] \\ t = 3.5
PLEASE HELP ME?!!!!???
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Answer:
2. 17/2
3. 5/2
4. 6
5. 9
6. 8
Step-by-step explanation:
Answer:
Hello! :) Have a good day!
2. 17/2
3. X = 5/2
4. X = 6
5. X = 9
6. X = 8
Can you please help me?!
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Answer:
you can travel 5 miles in 1 hr
Step-by-step explanation:
20/4 = 5
This is becuase 20 / 4 = 5
C/2-3+6/D when c = 14 and d = 3
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Answer:
im not entirely sure but i think 6
Step-by-step explanation:
14/2=7, 6/3=2, 7-3 is 4 and 4 + 2 is 6
Select all the expression that have the same value
1: 2^4
2: 2^6
3: 2^8
4: 4^3
5: 8^2
6: 8^8
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Answer:
#2, 4, and 5 all have the same value of 64
Step-by-step explanation:
1) 16
3) 256
6) 16,777,216
a symbol that represents and unknown quantity is called ??
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Answer:
Variables
Step-by-step explanation:
the answer is a variable
There are 20 students in a class. A student is randomly chosen each day to record attendance. What is the probability that the same kid gets picked to record attendance two days in a row?
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Answer:
the probability is 1/20
Write an equation of the line that passes
through (4, 1) and has a slope of -2.
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Answer:5
Step-by-step explanation:
Please help !!!!!!!!!!!
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Answer: 6) x= 17 Same side interior angles sum to 180.
7) x= 3 Alternate exterior angles are equal.
8) x= 35 Corresponding angles are equal.
9) x= 12 Alternate interior angles are equal
Step-by-step explanation:
6) x= Same side interior angles sum to 180.
53+(8x-9)= 180
44+8x= 180
Subtract 44 from both sides
8x= 136
Divide both sides by 8
X = 17
7) x= Alternate exterior angles are equal. 15x+29= 26x-4
Subtract 15x from both sides
29= 11x-4
Add 4 to both sides
33= 11x
Divide both sides by 11
X=3
8) x= Corresponding angles are equal.
4x+7= 6x-63
Subtract 4x from both sides
7 = 2x -63
Add 63 to both sides
70= 2x
Divide both sides by 2
X= 35
9) x= Alternate interior angles are equal
9x+37= 14x-23
Subtract 9 x from both sides
37= 5x -23
Add 23 to both sides
60= 5x
Divide both sides by 5
12=x