if y varies directly with x, and y = -20 and x = 5, what is x when y = -30
Answer:
7.5
Step-by-step explanation:
The value of x = 7.5 when y = -30
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
Given that y varies directly with x, and y = -20 and x = 5,
To determine the value of x = 7.5 when y = -30
Direct variation equations can be written as:
y = kx where "k" is a constant.
Substitute the values of y = -20 and x = 5 in the direct variation equation and solve for k:
⇒ -20 = 5k
⇒ k = -20/5
⇒ k = -4
The direct variation equation :
⇒ y = -4x
Substitute the values of y = -30 in the above equation and solve for x:
⇒ -30 = -4x
⇒ 4x = 30
⇒ x = 30/4
⇒ x = 7.5
Thus, the value ofx = 7.5 when y = -30
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The table below shows the number of school absences each day.
A 2-column table with 6 rows. Column 1 is labeled Day (x) with entries 1, 2, 3, 5, 6, 7. Column 2 is labeled Absences (y) with entries 10, 6, 2, 10, 6, 2.
Which equation models the data in the table?
y = 4 cosine (StartFraction pi Over 2 EndFraction x minus StartFraction pi Over 2 EndFraction) + 6
y = 4 cosine (StartFraction pi Over 2 EndFraction x + StartFraction pi Over 2 EndFraction) + 6
y = 2 cosine (StartFraction pi Over 2 EndFraction x minus StartFraction pi Over 2 EndFraction) + 6
y = 4 cosine (StartFraction pi Over 2 EndFraction x + StartFraction pi Over 2 EndFraction) + 6
Answer: A
Step-by-step explanation:
The equation that models the data in the table is:
y = 4 cosine (StartFraction pi Over 2 EndFraction x minus StartFraction pi Over 2 EndFraction) + 6 (Option A)
What is a mathematical model?A mathematical model is a typification of a physical system with the use of Mathematical concepts, tools, and elements.
This process is called mathematical modeling.
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ANSWER THIS QUESTION WITH WORKING PLEASE :>!!!
Step-by-step explanation:
y + 65°= 180° (Being co-interior angle)
y = 180° - 65°
y = 115°
Next we will find of the next co-interior angle which is A and D
(2x - 10)° + (3x + 20)° = 180° ( Same reason)
Now we will keep the like ones together.
2x° + 3x° - 10° + 20° = 180°
5x° + 10° = 180°
5x = 180° - 10°
5x = 170°
x = 170°/5
x = 34°
Now we need to find (2x - 10)° and (3x + 20)°
(2x - 10)°
=(2×34-10)°
=(68-10)°
=58°
(3x + 20)°
=(3×34-20)°
=(102-10)°
=92°
Instrument Panel
Identify instruments and gauges on the instrument panel of your family car or that of a friend and
list below.
the sum of two consecutive integers is 99. Find the value of the smaller integer. (Show work)
Answer:
49.5
Step-by-step explanation:
99/2=49.5
How many kilograms are there in 45,456 mg?
Mr. Bins sold 1/2 of his farm to Mr. Frost and 100 acres to Mr. Slate. He now has 1/5 of his original farm land. How big was his farm originally? How much land does he have now?
Answer:
Step-by-step explanation:
1/2
which represents the slope of a line that is parallel to a line with a slope of -2
Answer:
One with a slope of -2 and different y-intercept
e.g. y = -2x + 3
2x-3 = -x+3 what does x equal
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
x = 2
Hope this helps! :)
Answer:
x = 2
Step-by-step explanation:
2x - 3 = - x + 3
First, combine the like terms
(Don't forget to change the signs with you bring a number or variable from one side to another.)
2x + x = 3 + 3
Then, add or subtract.
3x = 6
Divide.
x = 2
Hope this helps!
Keyani went to the store with a $50 bill. She bought three pounds of turkey for $7.25 per
pound, and a certain number of packs of bread rolls, r, for $3.50 per pack. She receives $10
in change
Which statement is NOT true? *
A. Every integer is a real number.
B Every counting number is an integer
C Every integer is a rational number
D Every decimal number is an irrational number.
Answer:
D. Every decimal number is an irrational number.
Step-by-step explanation:
As long as a decimal repeats or terminates, it is a rational number.
Evaluate this expression |-9|
Answer:9
Step-by-step explanation:
The distance between-9 and 0 is 9.
Step-by-step explanation:
|-9| = 9 , since the absolute value of every negative number is a positive number
WHAT IS -(-2z+5y) HELP MY HOMEWORK IS DUE IN 50 MINUTES PLEASE
Answer:
[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{2z - 5y}}}}}[/tex]
Step-by-step explanation:
[tex] \sf{ - ( - 2z + 5y)}[/tex]
Distribute negative ( - ) sign through the parentheses
[tex] \sf{( - ) \times ( - 2z) + ( - ) \times (5y)}[/tex]
[tex] \dashrightarrow{ \sf{2z + ( - 5y)}}[/tex]
[tex] \dashrightarrow{ \sf{2z - 5y}}[/tex]
Hope I helped!
Best regards! :D
F(x)=(x-2)^2
Evaluate for f(5)
Need Answers ASAP
Answer:
f(5) = 9
Step-by-step explanation:
To evaluate f(5) substitute x = 5 into f(x), that is
f(5) = (5 - 2)² = 3² = 9
Answer:
f(5) = 9Step-by-step explanation:
f(x) = ( x - 2)²
To find f(5) substitute the value of x that's 5 into f(x). That's for every x in f (x) replace it with 5
That's
f(5) = ( 5 - 2)²
= 3²
We have the final answer as
f(5) = 9Hope this helps you
write 10 places in India and write their population in Indian and international system
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Solution :-
Following are the population of five major cities of India according to the Census of 2011.
1) Mumbai
a) Indian System :
1,24,42,373 - One Crore Twenty Four Lakh Forty Two Thousand Three Hundred Seventy Three.
b) International system :
12,442,373 - Twelve Million Four Hundred Forty Two Thousand Three Hundred Seventy Three.
2) Delhi
a) Indian System :
1,10,34,555 - One Crore Ten Lakh Thirty Four Thousand Five Hundred Fifty Five.
b) International System :
11,034,555 - Eleven Million Thirty Four Thousand Five Hundred Fifty Five.
3) Bangalore
a) Indian System :
84,43,675 - Eighty Four Lakh Forty Three Thousand Six Hundred Seventy Five.
b) International system :
8,443,675 - Eight Million Four Hundred Forty Three Thousand Six Hundred Seventy Five.
4) Hyderabad
a) Indian System :
67,31,790 - Sixty Seven Lakh Thirty One Thousand Seven Hundred Ninety.
b) International System :
6,731,790 - Six Million Seven Hundred Thirty One Thousand Seven Hundred Ninety.
5) Ahmedabad
a) Indian System :
55,77,940 - Fifty Five Lakh Seventy Seven Thousand Nine Hundred Forty.
b) International System :
5,577,940 - Five Million Five Hundred Seventy Seven Thousand Nine Hundred Forty.
Answer:
Mumbai 12,442,373Delhi 11,007,835Bangalore 8,436,675Hyderabad 6,809,970Ahmadabad 5,570,585Chennai 4,681,087Kolkata 4,486,678Surat 4,467,797Pune 3,124,458Jaipur 3,046,163.Step-by-step explanation:
Please a BrainliestComment me if you want to help me find my lost love
Write an expression for the sequence of operations described below. subtract c from the difference of 7 and 6 (slightly confused help me qwq)
The differenceeof two numbers is just another name for subtraction.
c - (7 - 6)
We can even simplify this expression further.
c - 1
Jody's English quiz scores are 56, 93, 72, 89, and 87. What is the median of
her scores?
a. 72
b. 87
C. 56
d. 85.6
Answer:
87, median is the middle value
Step-by-step explanation:
put them in order from least to greatest
56, 72, 87, 89, 93
87 is your median
Answer:
The median of her scores is 87
Step-by-step explanation:
What is median?
The middle number; found by ordering all data points and picking out the one in the middle (or if there are two middle numbers, taking the mean of those two numbers) is called a median.
Arranging the data in ascending order.
56,72,87,89,93.
n=5
Median =[(n+1)/2]th observation.
=[(5+1)/2]th observation
=3rd observation
= 87
Hence, the answer is Option (B) 87
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Write 0.12 as a fraction.
Let x = ?
100x = ?
100x - x = ? - ?
99x = ?
X = ?
Answer:
Let 0.12 be x.
Here, x is recurring in two decimal places so we'll multiply it by 10-
10x = 1.22Now, by subtracting them-
[tex] \\ \implies \sf \: 10x - x = 1.22 - 0.12 \\ \\ \\ \implies \sf \: 9x = 1.1 \\ [/tex]
Now, we'll divide both sides by 9 to get x as a fraction -
[tex] \\ \implies \sf \: x = \frac{1.1}{9} \\ \\ \\ \star \: \large{ \boxed{ \sf{x = \frac{11}{90} }}} \\ [/tex]
Regina is walking to school after 10 minutes, jen has walked 3/10 mile.Find her speed in miles per hour A 2.5 miles B 1.3 miles C 1.8 miles per hour D 3miles per hour
Answer:
B. 1.8miles/hour
Step-by-step explanation:
Speed = distance/time
Given parameters
Distance = 3/10 miles
Time = 10miuntes
Convert the time to hours
10minutes = (10/60)hour
10minutes = 1/6 hour
Substitute the parameters into the formula;
Distance = (3/10)/(1/6)
Distance = 3/10× 6/1
Distance = 18/10
DISTANCE = 1.8miles/hour
Function h is a transformation of the parent exponential function, $(=) = 2*
h(t) = -3 2-
Which statement is true?
O A
Function h is a horizontal translation of function f.
OB.
Function h is a reflection and a translation of function f.
C.
Function h is a vertical translation of function f.
D.
Function his a reflection and a dilation of function f.
Answer:
D. function h is a reflection and a dilation of functionStep-by-step explanation:
Parent function:
f(x) =2^xTransformed function:
h(x) = -3•2^xTransformation applied:
f(x) → -f(x) = reflection over x-axis = vertical reflectionf(x) → 3f(x) = dilation or vertical stretchCorrect answer choice is:
D. function h is a reflection and a dilation of function f
A statistics class with 40 students consists of 30 students with no income, 10 students with small incomes from part-time jobs, and a professor with a very large income that is well deserved. Which is better for describing the income of a typical person in this class: mean or median? Explain.
The median would be better for describing the income of a typical person in the class because the professor's large salary skews the data to the right while all the students are towards the left and center.
CAN YOU GUYS ALSO LOOK AT MY OTHER QUESTIONS I NEED HELPP
\small \overrightarrow{QS} bisects \small \angle PQR. If \small m\angle PQS=5x-11 and \small m\angle RQS=3x+7, than what is \small m\angle PQR? \small m\angle PQR= 8x-4 degrees
Answer:
[tex] m\angle PQR =(8x - 4)\degree[/tex]
Step-by-step explanation:
Since, QS bisects angle PQR.
Therefore,
[tex]m\angle PQR = m\angle PQS = m\angle RQS\\
m\angle PQR =5x - 11 + 3x +7\\
m\angle PQR =5x + 3x + 7 - 11\\
\huge \red {\boxed {m\angle PQR =(8x - 4)\degree}} [/tex]
Please help xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Answer:
thta is confusing try google
Step-by-step explanation:
Answer:
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Step-by-step explanation:
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Which set of equations is enough information to prove that lines a and b are parallel lines cut by transversal f? m∠4 = 110° and m∠3 = 70° m∠1 = 110° and m∠2 = 110° m∠1 = 110° and m∠3 = 70° m∠2 = 110° and m∠3 = 110°
Answer:
its c
Step-by-step explanation:
Answer:
C. m∠1 = 110° and m∠3 = 70°
Step-by-step explanation:
as the other person said :)
1/5(6+3+1)^2
Need answer asap
How does the 2 in the hundredths place compare to the 2 in the thousandths place?
Answer:
2 in the hundredths place is greater
Step-by-step explanation:
2 in the hundredths place is 10 times the thousands place
please help me i’m not trying to fail
Which ratio is equivalent to the ratio 28:48
Answer:
7:12
It is 7:12 because we divide by 4.
28 ÷ 4 = 7.
48 ÷ 4 = 12.
Now, you have a final answer 7:12.
Answer:
7:12
Step-by-step explanation:
Divide each side by four.
Answer is 7:12
Hope this helps! :) Let me know if it does.
Joe reads 30 chapters of a book in 6 hours What is his rate in chapters per hour
Answer:
5/1 is the rate
Step-by-step explanation:
for every hour, joe reads 5 chapters
Answer:
just divide 30 by 6 which is 5
Step-by-step explanation:
Mario and his family are discussing how to pay for his college
education. The cost of tuition at the college that Mario wants to attend is
$7,500 per year. Mario's parents will pay 60% of the tuition cost every
year, and Mario will pay the rest. Mario has two years to save enough
money to attend his first two years of college. What is the minimum
amount of money he should save every month in order to reach his goal?
Answer:
$250 per month for 2 years
Step-by-step explanation: