Answer:
In general direct variation suggests that two variables change in the same direction. as one variable increases the other also increases and as one decreases the other also decreases.
Step-by-step explanation:
i hope this helps.
Write the fraction 7/8 as an equivalent fraction with the given denominator 40
Answer:
35/40
Step-by-step explanation:
7/8, with the given denominator 40
So how do we get 8, to turn into 40?
Simple multiplication.
8x5 = 40, and whatever we multiply times the denominator, we multiply for the numerator.
So
7x5 = 35
The answer should be 35/40
3. Travis gets a job which pays $22.50/h. Samantha
gets a job that starts at $0.01/h and doubles every
day. How long will it take before Samantha makes
more per hour than Travis?
a. 12 hours
b. 12 days
C. Samantha will never make more than Travis
d. 6 months
Answer: 12 days
Step-by-step explanation:
can you answer this
Answer:
3 square fhfhfjshxfjkzkdjzhx h2jxfjwjznnznzn
How do you graph y = √ 5 - x? How do I find the coordinates by hand?
Each point is of the form (x,y). We replace x with some number to get a paired y value.
For instance, if x = 1, then,
[tex]y = \sqrt{5-x}\\\\y = \sqrt{5-1}\\\\y = \sqrt{4}\\\\y = 2[/tex]
Meaning x = 1 and y = 2 pair up. The point (x,y) = (1,2) is on the curve.
Then let's try x = 4
[tex]y = \sqrt{5-x}\\\\y = \sqrt{5-4}\\\\y = \sqrt{1}\\\\y = 1[/tex]
Showing (4,1) is also on the curve.
The point (5,0) is also on the curve too because of the steps below
[tex]y = \sqrt{5-x}\\\\y = \sqrt{5-5}\\\\y = \sqrt{0}\\\\y = 0[/tex]
We can't go any higher than x = 5 or else the expression 5-x will be negative. Eg: if x = 7, then 5-x = 5-7 = -2. We cannot take the square root of a negative and get some real number output.
So let's go in the opposite direction. Let's try x = -4
[tex]y = \sqrt{5-x}\\\\y = \sqrt{5-(-4)}\\\\y=\sqrt{5+4}\\\\y = \sqrt{9}\\\\y = 3[/tex]
Showing (-4,3) is also on the curve.
The x values I'm picking are such that the y value is an integer. For the majority of the x values, you'll get some decimal value which is a bit tricky to graph on paper. So effectively you'll have to use trial and error to find the right x values to pick. The goal is to get the stuff under the square root to simplify to some perfect square (0,1,4,9,...etc)
After generating enough points, you draw a curve through them all. The more points, the more accurate the graph.
Combine like term: 7x+2y+9x+9
Answer:
16x +2y +9
Step-by-step explanation:
I hope this helps. Just combine the numbers with the same Variable/letter. That's why only 7x and 9x were combined together
What is h-(-5)=2? And how do you solve it?
Answer:
It is an equation, and the answer is [tex]h = -3[/tex]
Step-by-step explanation:
We have a variable that's equal to a term, so this is an equation.
To solve this, we want to isolate h on one side.
[tex]h - (-5) = 2[/tex]
Subtracting a negative is the same thing as adding a positive:
[tex]h + 5 = 2[/tex]
Now we can subtract 5 from both sides to isolate h.
[tex]h + 5 - 5 = 2-5\\\\h = -3[/tex]
Hope this helped!
Answer:2 2/2
Step-by-step explanation:
A plumber charges $25 for a service call plus $50 per hour of service. Write an equation in slope-intercept form for the cost, C, after h hours of service. What will be the total cost for 8 hours of work?
Answer:
C(h) = 50h + 25
$425
Step-by-step explanation:
Et the plumber works for h hours.
Cost of one hour = $50
Therefore, cost of h hours = $50h
Total cost = cost of h hours + plumber service call charge
C(h) = 50h + 25 (required equation)
Plug h = 8
C(8) = 50* 8 + 25 = 400 + 25 = $425
which graph shows a linear function?
Answer:
Step-by-step explanation:
You have shared only one graph, that of a quadratic function with vertex at (0, 0) and an equation based upon y = ax^2, where a is a constant coefficient.
Please go back to the source of your question and describe the other graphs that were given to you.
The graph that shows a straight line is the linear function.
can someone help me with these problems please?
Answer:
Please who knows the full question to this problem am unable to see the full question.....
Volume varies 1/P.
V=K/P.
21=K/1.
K=21.
The relation is V=21/P.
....if P=0.7 and K=21.
and the relation to solve the question is V=21/P then put the value of P in the formula which will be...
V=21/0.7.
V=30m^3.
This is my answer..i hope it helps
this is the photo of the question
Answer:
Plant B
Step-by-step explanation:
The only measure of variation we really need to check is the mean, or average, of tomatoes that each plant produced. This is because if Kathryn was a farmer, she would want a plant that on average, produces more tomatoes. For that reason, in this context, the mode, median and range are irrelevant. To find the mean of a data set, you simply divide the sum of all of the data by the number of data in the set. Therefore:
Mean of Plant A: (4 + 6 + 7 + 3 + 6 + 2 + 1 + 3 + 6 + 5) / 10 = 43 / 10 = 4.3
Mean of Plant B: (5 + 6 + 7 + 6 + 8 + 9 + 6 + 7 + 8 + 9) / 10 = 71 / 10 = 7.1
As you can see, the mean tomatoes Plant B produces is larger than that of Plant A, therefore, Kathryn should choose Plant B if she was a farmer.
Estelle is raking leaves in her yard. After 1 hour, she has 2 bags of leaves. After 3 hours, she has 6 bags of leaves. Which graph represents Estelle's leaf raking progress? (2 points)
Answer:
You're looking for the graph [tex]y=2x[/tex]
Step-by-step explanation:
If Estelle is raking in leaves at a constant rate, which we usually assume for cases like this, we're looking for a function of the form
[tex]y=kx+m[/tex]
x here is going to be the number of hours, or time.
y is going to be the number of bags she has raked in.
First of all, we know that at time 0, she hasn't raked in any leaves. So when x is 0, we know y is 0. Let's put these values in our function.
[tex]0 = k * 0 + m[/tex]
[tex]0 = 0 + m[/tex]
[tex]m = 0[/tex]
We now know m is 0.
We also know that after 1 hour, Estelle has 2 bags of leaves. So when x is 1, y will be 2. Let's put these values in.
[tex]2 = k*1[/tex]
We're excluding m as we know it's 0.
[tex]k=2[/tex]
So k is 2, and m is 0. Let's put these values in our original function [tex]y=kx+m[/tex]:
[tex]y = 2x + 0[/tex]
[tex]y=2x[/tex]
The equation is y=2x.
Putting this into a graphing calculator, we get this graph (attached).
Select all the properties that can be used to solve 7y – 15 = –29. Group of answer choices Identity Property of Multiplication Inverse Property of Multiplication Commutative Property of Addition Addition Property of Equality Distributive Property
Answer:
Inverse property of multiplication
Step-by-step explanation:
A data set with whole numbers has a low value of 20 and a high value of 96.
Find the class width for a frequency table with seven classes.
Find the class limits for a frequency table with seven classes.
Answer and Step-by-step explanation:
The computation of the class width for a frequency is shown below:
Class width is
[tex]= \frac{Range}{Number\ of\ class} \\\\ = \frac{96 - 20}{7}[/tex]
= 10.86
= 11
Now the class limits for a frequency table
Particulars Lower class limit to upper class limit
First class 20 - 30
Second class 31 - 41
Third class 42 - 52
Fourth class 53 - 63
Fifth class 64 74
Six class 75 - 85
Seventh class 86 - 96
The class width for a frequency table with seven classes is 10.86.
The class limits for a frequency table with seven classes are;
Particulars Lower class limit to upper class limit
First-class 20 - 30
Second class 31 - 41
Third class 42 - 52
Fourth class 53 - 63
Fifth class 64 74
Six class 75 - 85
Seventh class 86 - 96
GivenA data set with whole numbers has a low value of 20 and a high value of 96.
1. The class width for a frequency table with seven classes is;
[tex]\rm Frequency = \dfrac{Highest \ term - lowest\ term }{Class}\\\\ Frequency = \dfrac{96-20}{7}\\\\ Frequency = \dfrac{76}{7}\\\\ Frequency =10.86[/tex]
The class width for a frequency table with seven classes is 10.86.
2. The class limits for a frequency table with seven classes are;
Particulars Lower class limit to upper class limit
First-class 20 - 30
Second class 31 - 41
Third class 42 - 52
Fourth class 53 - 63
Fifth class 64 74
Six class 75 - 85
Seventh class 86 - 96
To know more about Frequency click the link given below.
https://brainly.com/question/17678599
a recipe for chocolate chip cookies calls for 1 1/4 cups of flour. if you are making 2 1/3 recipes, how many cups of flour are needed?
Answer:
2 11/12 cups of flour
Step-by-step explanation:
well 2 recipes is 2 1/2 cups of flour
1/3 is 1/3 x 1 1/4= 1/3 + 1/12= 5/12
so 2 11/12 cups of flour
An object is moving at a speed of 95 kilometers every 7.5 weeks. Express this speed in
feet per day
Answer:
5,936.76 feet/dayStep-by-step explanation:
Formula to use to get the speed is expressed as speed = Distance/Time
Given parameters
Distance = 94km
Time = 7.5weeks
Since we are to express the answer in feet per day, we will convert the distance to feet and time to days.
For the distance:
Given the conversion
1 km = 3280.84 feet
95km = (95*3280.84)feet
95km = 311,679.8 feet
For the time:
If 1 week = 7 days
7.5weeks = (7.5 * 7)
7.5weeks = 52.5 days
Speed In ft/day = 311,679.8 feet/ 52.5 days
Speed in ft/day = 5,936.76 feet/day
Hence the speed in feet per day is 5,936.76 feet/day
*PLEASE HELP
Type your response in the box.
Scientists notice two asteroids moving directly toward each other. Right now, they are 20 million kilometers apart, but they are on a collision course. The graph represents their paths and likely collision point, with the origin representing the initial position of asteroid A. What is the point of intersection of the two lines, and what do the x- and y-values of the point of intersection mean?
Answer:
The point of intersection is (6, 8). This indicates that in 6 days, asteroid A and B will collide at a point that is 8 million miles away from asteroid A's current position and 12 million miles away from asteroid B's current position.
Answer:
The point of intersection of the two lines is (6, 8). The x-value means that the two asteroids will collide in 6 days. The y-value means that they will collide 8 million miles away from where asteroid A is now located.
Step-by-step explanation:
Exact answer from edmentum.
The next term in the geometric sequence -1, -2, -4, ... is -6. True or False
Answer:
False
Step-by-step explanation:
Geometric series have ratios.
The ratio here is 2.
So the next term should be -8.
2. Change the units of the following speeds as indicated:
a) 72 km/h into m/s
b) 108 km/h into m/s
Answer:
Hey there!
Using conversion factors we get-
72 km/h=20 m/s
108 km/h=30 m/s
Let me know if this helps :)
Me ajudem por favor: 3x+30=80
0.06 es la repuesta
Step-by-step explanation:
Aqui esta como lo podias aser:
1. 3x + 30=80
-30. -30
3x=50
÷3. ÷3
Necesitas que divinir 50 en 3
3(0.06) + 30=80 x=0.06
The line plot below shows the distances of discus throws in a contest.
What was the distance of the shortest throw?
Discus Throw Distances in Meters
30 31 32 33 34 35 36 37 38 39 40 42 44 45 46 47 48 49 50
A 30 meters
B. 35 meters
40 meters
D. 50 meters
a jar has 5 tablespoons of honey in it. One serving of Honey is 3/4 of a tablespoon. how many servings of honey are in the jar.
Servings = total amount / serving size
Servings = 5 / 3/4
When dividing by a fraction, reverse the fraction and multiply:
= 5 x 4/3
= 20/3
= 6 2/3 servings
Answer: 6 servings
Step-by-step explanation:
3/4+3/4+3/4+3/4+3/4+3/4=4.5
if you add 3/4 then it will be 5.25 so basically 5 tablespoons
it is 6 full servings
when y=6 and x=8 x+9y
Answer:
44
Step-by-step explanation:
You plug in both numbers for the corresponding letters
Why are (1,2) and(2,1) not equal ordered pair?
Answer:
The pairs ( 1 , 2 ) and ( 2 , 1 ) are not equal because their respective elements are not equal.
Step-by-step explanation:
The pair of elements which are in specific order is called an ordered pair. The pair ( 1 , 2 ) is not same as the pair ( 2 , 1 ). In the pair ( 1 , 2 ) 1 is in the first position and 2 is in the second position. In the pair ( 2 , 1 ), 2 is in the first position and 1 is in the second position.
Two ordered pairs ( a , b ) and (c , d ) are said to be equal if a = c and b = d. We write ( a , b ) = ( c , d ).
Hope I helped!
Best regards!!
Learn more:
brainly.in/question/20738422
Question 2 (1 point)
Choose the correct equation. Then solve the equation. [THERE ARE
TWO CORRECT ANSWERS]
A kid has 8 more quarters than dimes. The total number of coins is 20.
a. 8 quarters 16 dimes
b. 6 dimes and 14 quarters
c. 6 quarters 14 dimes
d. d + (d + 8) = 20
e. 10 quarters and 10 dimes
f. d + 8 = 20
g. 8d = 20
Answer:
b. 6 dimes and 14 quartersd. d + (d + 8) = 20Step-by-step explanation:
If we let d represent the number of dimes, then d+8 represents the number of quarters. The total number of coins is the sum of the numbers of each:
d +(d +8) = 20 . . . . . matches choice d
Collecting terms, we have ...
2d +8 = 20
d +4 = 10 . . . . . divide by 2
d = 6 . . . . . . . . subtract 4
The kid has 6 dimes and 14 quarters. (matches choice b)
HELPPPPPPPPPPPPPPPPPPPPPPPPPP
What are the rules for subtraction and multiplication with negative numbers???
Answer:
Step-by-step explanation:
+(+) Two like signs become a positive sign 3+(+2) = 3 + 2 = 5
−(−) 6−(−3) = 6 + 3 = 9
+(−) Two unlike signs become a negative sign 7+(−2) = 7 − 2 = 5
−(+) 8−(+2) = 8 − 2 = 6
O Sr. Lima investiu R$5000,00 em um fundo de ações. No 1º ano as ações do fundo valorizaram-se 35%; no 2º ano, valorizaram-se 20% (em relação ao 1º ano) e no 3º ano desvalorizaram-se 30% (em relação ao 2º ano). Que valor o Sr. Lima terá ao final dos três anos? a) R$ 10.530,00 b) R$ 5.670,00 c) R$ 6.853,00 d) R$ 7.500,20 e) R$ 8.320,40
Responda :
R $ 10.530
Explicação passo a passo:
Investimento inicial = R $ 5.000
Apreciação no primeiro ano = 35%
Apreciação no segundo ano = 20% em relação ao primeiro ano
Valorização no terceiro ano = 30% em relação ao segundo ano
Se o investimento se valorizar em 35% no primeiro ano:
35% do investimento: 0,35 × R $ 5.000 = R $ 1.750
Total após o primeiro ano = R $ (5.000 + 1.750) = R $ 6.750
2º ano:
Valorização de 20% em relação ao primeiro ano:
20% de 6750 = 0,20 * 6750 = R $ 1.350
Total = (6.750 + 1.350) = R $ 8.100
3 º ano:
Valorização de 30% em relação ao segundo ano:
30% de 8100 = 0,30 * 8100 = R $ 2.430
Total = (8.100 + 2.430) = R $ 10.530
No final do terceiro ano:
R $ 10.530
Simplify:
3x(2y+5)-2y(3x-5)-5(3x+2).
The final result contains how many terms?
Answer:
10y-10
Step-by-step explanation:
2 terms
In a recent survey of 400 students in a college, were listed as studying Typing (T) were registered for both courses and were listed as studying accountancy (T).
Answer:
The intersect of typing and accounting ( T ∩ A ).
Step-by-step explanation:
if 200 student study typing;
200 study accounting;
the set rule pictures this as;
typing( T ) = { 200 typing student }
accounting ( A )= { 200 accounting student }
To get the number of students enrolled for both courses;
We intersect the typing and accounting sets values.
that is;
students enrolled for both courses = T ∩ A
What is the HCF used prime factorization method of 84 and 98
●✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎❀✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎●
Hi my lil bunny!
❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙
Prime Factor of 84:
84
84 divides by 2 84 = 42 x 2
84 = 2 x 42
42 divides by 2 42 = 21 x 2
42 = 2 x 2 x 21
21 divides by 3 21 = 7 x 3
21 = 2 x 2 x 3 x 7
2, 3, 7 is a prime number, therefore no further factorization is possible = 2 x 2 x 3 x 7
~~~~~~~~~~~~~~~~~~~~~~
Prime Factor of 98:
98
98 divides by 2 98 = 49 x 2
98 = 2 x 49
49 divides by 7 49 = 7 x 7
49 = 2 x 7 x 7
2, 7 is a prime number, therefore no further factorization is possible = 2 x 7 x 7
❧⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯☙
●✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎❀✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎✴︎●
Have a great day/night!
❀*May*❀
you are given the expressions 76+n and 2n + 26. What is the smallest value of n that will make each number rational?
Step-by-step explanation:
A proof that square root of 2 is irrational. ... An equation x² = a, and the principal square root ... The number under the radical sign is called the radicand. ... the given square numbers, each product of square numbers is equal to what square ... are relatively prime -- and it will be impossible to divide n· n into m· m and get 2.
Answer: The Answer is N = 5
Step-by-step explanation:
The reason is that 76 + n and 2n + 26. 5 can work for both of them. 76 + 5 = 81 which is a rational number and 2 * 5 + 26 = 36 which is also a rational number.