Step-by-step explanation:
[tex]x = \frac{k}{y} [/tex]
x varies inversely as y. This means that x is equal to the inverse of y which can be translated as x = 1/y but the problem said that x is not exactly equal to the inverse of y. Therefore, we need to introduce a factor k. Factor k will represent the word "varies" in the problem.
To illustrate:
[tex]x = \frac{k}{y} [/tex]
Since we don't have the value of k, we have to solve for it by using the first values of x and y which was given as x=2 and y=20.
[tex]x = \frac{k}{y} \\ 2 = \frac{k}{20} \\ k = 2(20) = 40[/tex]
Now that we have the value of k, we can now solve for the value of x when y=5.
[tex]x = \frac{k}{y} \\ = \frac{40}{5} \\ = 8[/tex]
Therefore, when y is 5, the value of x is 8.
A plane travels a distance of 6,000 km in a time of 6.8 hours.
What is its average speed rounded to the nearest whole number?
Answer:
distance =6,000km
time =6.8 hrs
speed =distance /time =6,000/6.8=60000/68=882 km/h
What is the value of y= 3x + 5 when x = -4?
Answer:
y=-7
Step-by-step explanation:
y=3(-4)+5
y=-12+5
y=-7
giving brainliest please help
Answer:
Question 1:
1: 2 xs
1 1/4: 5 xs
1 1/2: 1 xs
1 3/4: 1 xs
2: 2xs
Question 2:
6 1/4 pounds
I hope I helped!
10.5 divided by .21
help fast pls! and i need to show my work.
Answer:
50
Step-by-step explanation:
Use long division
the answer is 50
hope this helps
Sara ordered 2 slices of pizza and a 12-ounce cola and paid
$3.00. Sydney ordered 3 slices of pizza and 2 12-ounce
colas for $4.75. How much does a slice of pizza cost?
Answer: a slice of pizza cost $1.25 and a 12-ounce cola cost $0.50.
Step-by-step explanation:
Let slice of pizza cost x and a 12-ounce cola cost y.
Then Sara's order cost: 2x+y=3
and Sydney's order cost: 3x+2y=4.75
From the first equation we have: y=3-2x and put this to the second equation:
3x+2(3-2x)=4.75
3x+6-4x=4.75
x=1.25
y=3-1.25*2=0.50
Answer: a slice of pizza cost $1.25 and a 12-ounce cola cost $0.50.
Find whether the pair of linear equations y = 0 and y = -5 has no solution, unique solution
or infinitely many solutions
Answer:
infinitely many solutions
Answer:
NO SOLUTION
Step-by-step explanation:
Describe the compliment of the set of odd numbers greater than 0 within the set of positive integers.
Answer:
Step-by-step explanation:
it is the set of positive even integers.
{0,2,4,...}
Write an equation in slope-intercept form of the line that passes through the points. 0,1 and 4,2
Answer:
[tex]y=\frac{1}{4}x+1[/tex]
Step-by-step explanation:
the common formula of the required equation is:
[tex]\frac{x-X_A}{X_B-X_A} =\frac{y-Y_A}{Y_B-Y_A};[/tex]
if to substitute the given coordinates into the folmula above, then the required equation is:
[tex]\frac{x-0}{4-0} =\frac{y-1}{2-1};[/tex] ⇔ y-1=1/4*x; ⇔ [tex]y=\frac{1}{4} x+1.[/tex]
Least to greatest 2/3, -2 2/5, 0.5, -0.8
Answer:
-2 2/5, -0.8, 0.5, 2/3
Step-by-step explanation:
We have four values, two that are fractions and two that are decimals and are asked to put them from least to greatest.
We have a dillema of values in this question, two are fractions and two are decimals. We need to convert all of them towards one symbol to get our answer.
Let's try decimals, since they are more easier to see which is the bigger value.
Start with 2/3, what is 2 divided by 3?
2/3
0.6 repeated.
As of now, we have 0.6 repeated, -2 2/5, 0.5, and -0.8.
Now do the second fraction, turn -2 2/5 to an improper fraction by multiplying the whole number by the denominator and adding the numerator.
-2 * 5 + 2
-10 + 2
-8/5
Now convert -8/5 to a decimal :
-8/5
-1.6
Now we have all decimals, put the from least to greatest.
0.6 repeated, -1.6, 0.5, -0.8
-1.6, -0.8, 0.5, 0.6 repeated
Therefore our list from least to greatest is :
-2 2/5, -0.8, 0.5, 2/3
Evaluate the given expression for x= -8.
- 3x -8
The answer is
Answer:
Substitute the value of the variable into the equation and simplify.
16
Step-by-step explanation:
Hope this helps! Have a great day!
Answer: 16
Step-by-step explanation:
[tex]- 3x -8=\\-3(-8)-8=\\24-8=\\16[/tex]
Write an equation that represents the relationship between the number
of hours worked h and the amount of money made in wages w."
Answer:
Step-by-step explanation:
so u have to mulpie the all of the he money bey step by step in till u get the answer
The Excel file Store and Regional Sales Database provides sales data for computers and peripherals showing the store identification number, sales region, item number, item description, unit price, units sold, and month when the sales were made during the fourth quarter of last year.2 Modify the spreadsheet to calculate the total sales revenue for each of the eight stores as well as each of the three sales regions.
Answer:
Total sales revenue use excel function : ( SUMIF. =sumif(range, criteria, [sum_range] )
For each of the stores: Use excel function: For Store 1: =sumif(B4:B99,1,I4:I99) then repeat same for Store 2 to store 8
Step-by-step explanation:
To modify the spreadsheet to calculate the total sales revenue we will add a column " sales revenue "
multiply values of column : ( unit sold * unit price ) to get Total sales revenue. then use excel function : ( SUMIF. =sumif(range, criteria, [sum_range] ) to find Total sales revenue
calculate the total revenue for each of the 8 stores using a pivot table using "store identification number" in row and " sales revenue " in values field
To get the sales revenue ; replace " store identification value" with sales region " column
5 Clear A Mare for Reyes
A number cube has faces numbered from 1 to 6. When the number cube is rolled, the theoretical probability of it
1
landing with a multiple of 3 on the top face is
What is the probat
of the number cube NOT landing with a multiple of 3 on its top face?
Answer:
2/3
Step-by-step explanation:
Devaughn is 8 years younger than Sydney. The sum of their ages is 70. What is Sydney's age?
Answer:
Sydney 39 yrs old
Step-by-step explanation:
S=x
D=x-8
x-8+x=70
2x=78
x=39
If sally weighed 129 pounds last month and she gains 6 pounds every month how much does she weigh now?
Answer:
129 + 6x
Step-by-step explanation:
x represents how many months have passed
simplify -20y+30/ -2y+6
Answer:
− 3 5 + 6
Step-by-step explanation:
p.s. give me crown please
79% of a university's freshman class are majoring in Engineering. If 2765 students in the freshman class are Engineering majors, how many students are in the freshman class?
Answer:
3500
Step-by-step explanation:
2765 / .79 = 3500
There are total 3500 students in the freshman class.
How can we represent "a% of b"?We can represent "a% of b" as -
a% of b = a/100 x b
a% of b = ab/100
So, a% of b = ab/100
Given is that 79% of a university's freshman class are majoring in Engineering. 2765 students in the freshman class are Engineering majors.
Assume that there are {x} number of students in the freshman class. So, we can write -
79% of {x} = 2765
79x/100 = 2765
{x} = 276500/79
{x} = 3500
Therefore, there are total 3500 students in the freshman class.
To solve more questions on percentage, visit the link below-
https://brainly.com/question/19034579
#SPJ3
Plzz help me plz! I am very bad at math!
Answer:
D. 4 3/4
Step-by-step explanation:
1+3=4
2/4 + 1/4 = 3/4
hope it helps:)
POSSIBLE POINTS: 2
Jack had $32 to spend on 5 markers. He had $12 remaining after buying the markers. How much did each marker cost? ASAP!!!
Answer:
4
Step-by-step explanation:
Answer:
Use Photo Math
Step-by-step explanation:
Anyone have a answer for this?
Answer:
36.1 meters
Step-by-step explanation:
Since this is a rectangle, the parallel sides are equal to each other, meaning we technically already know all the side lengths.
I'll choose to look at the bottom triangle in this case
30 is already there, and the other leg should be 20. Knowing this, we can plug these into the pythagorean theorem.
20 is A, 30 is B, and the missing side is C
[tex]a^{2} + b^{2} = c^{2}\\20^{2} + 30^{2} = c^{2} \\400 + 900 = 1300 \\\sqrt{1300} = 36.06\\[/tex]
C, the missing side to the nearest tenth is 36.1 meters
Which of the following graphs show a proportional relationship?
Choose all answers that apply:
Choose all answers that apply:
(Choice A, Checked)
A
(Choice B, Checked)
B
(Choice C)
C
None of the above
This is from Khan Academy. Proportional Relationships
Answer:
it should be B
Step-by-step explanation:
it looks like a proportional line
Answer:
Answer A and answer B
need a answer ASAP!!!!!!!
Which function is the inverse of h(x)=18x+7/3?
Question 1 options:
A) k(x)=3x-7/18
B) k(x)=3x+7/18
C) k(x)7x-3/18
D) k(x)=18x-7/3
Please solve this!
Simplify:
7x/2x
a large clock has a face that is shaped like a circle the circumference of the circle is 5 feet which measurement is closest to the area of the face of the clock in square feet
Answer:
78.5
Step-by-step explanation:
What is an equation of the line that passes through the points (-6, -3) and
(-3, -5)?
Answer:
m= -2/3
Step-by-step explanation:
m= y2-y1/ x2-x1
m= -5-(-3)/ -3-(-6)
m= -5+3/ -3+6
m= -2/3
Can someone PLEASE HELP!!!
0nly answer if you know the answer please
I will mark BRAINLY if correct!
Pls help!
You are buying a fence to enclose a garden that has an area of 315 square feet.
Answer:
.............
Step-by-step explanation:
2.109 A large industrial firm uses three local motels to provide overnight accommodations for its clients. From past experience it is known that 20% of the clients are assigned rooms at the Ramada Inn, 50% at the Sheraton, and 30% at the Lakeview Motor Lodge. If the plumbing is faulty in 5% of the rooms at the Ramada Inn, in 4% of the rooms at the Sheraton, and in 8% of the rooms at the Lakeview Motor Lodge, what is the probability that
Answer:
Step-by-step explanation:
From the given information;
Let R represent Ramadan Inn
S to represent Sheraton; &
L to represent Lakeview Motor
F to represent faulty plumbing
So;
P(R) = 0.2
P(S) = 0.5
P(L) = 0.3
P(F|R) = 0.05
P(F|S) = 0.04
P(F|L) = 0.08
Then; to find the probability there will be a client assigned to the faulty room.
i.e.
P(F) =( P(R) × P(F|R) ) + ( P(S) × P(F|S) ) + ( P(L) × P(F|L) )
P(F) = (0.2 × 0.05) + (0.5 × 0.04) + (0.3 × 0.08)
P(F) = 0.01 + 0.02 + 0.024
P(F) = 0.054
suppose an individual with a room possessing faulty plumbing was given an accomodation at Lakeview Motor
Then:
P(L|F) = P(L) × P(L|F) / P(F)
P(L|F) = 0.3 × 0.08 / 0.054
P(L|F) = 0.4444
1 =
b
3
− 1
b = find b
Answer:
b = 2/3
Step-by-step explanation:
Solve for b:
1 = 3 b - 1
1 = 3 b - 1 is equivalent to 3 b - 1 = 1:
3 b - 1 = 1
Add 1 to both sides:
3 b + (1 - 1) = 1 + 1
1 - 1 = 0:
3 b = 1 + 1
1 + 1 = 2:
3 b = 2
Divide both sides of 3 b = 2 by 3:
(3 b)/3 = 2/3
3/3 = 1:
Answer: b = 2/3
What is 4m-5 ??
m=3
Answer:
7
Step-by-step explanation:
4m - 5 = 4 * 3 - 5 = 12 - 5 = 7
Answer: 7
Step-by-step explanation:
4m-5
=[ 4 x 3] - 5 (as m=3)
= 12 - 5
=7
Hope it helped u,
pls mark as the brainliest
^_^