Answer:
x=3
Step-by-step explanation:
If y is 15 when x is 5, and y =f(x), then the equation is y=3x. Substitute in 9 for y, and do the algebra, and you will get 3. Hope this helped :D
The value of x is 3 when y = 9.
What is Proportionality?When two quantities are proportional, it means that they can be expressed as a ratio or a fraction, and this ratio remains constant as the values of the quantities change.
If y varies directly as x, it means that the ratio of y to x remains constant.
We can express this relationship as y = kx, where k is the constant of variation.
To find the value of k, we can use the given information that y = 15 when x = 5:
15 = k . 5
Dividing both sides of the equation by 5, we get:
k = 15/5
k = 3
Now that we have the value of k, we can substitute it into the equation
y = kx to find x when y = 9:
9 = 3x
Dividing both sides of the equation by 3, we get:
x = 9/3
x = 3
Therefore, when y = 9, x = 3.
Learn more about Proportionality here:
https://brainly.com/question/8598338
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the circle shows the radius of 12mm what is the circumference
Answer:
24π or about 75.4 mm
Step-by-step explanation:
The circumference of a circle is denoted by C = 2πr, where r is the radius.
Here, we see that r = 12, so plugging this in:
C = 2πr
C = 2π * 12 = 24π ≈ 75.4 mm
The answer is thus 24π or about 75.4 mm.
~ an aesthetics lover
Answer:
about 75.36
Step-by-step explanation:
The circumference formula is C=pi times the diameter and the diameter is 24 because it is twice the diameter so 24 times pi.
Use the graph to determine the domain and range of the relation, and whether the relation is a function.
a. Domain: {x| -10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10}
Range: {y| -6, -5, -1, 1, 3, 4, 5, 7, 8, 10}
Yes, the relation is a function.
b. Domain: {x| -10 ≤ x ≤ 10}
Range: {y| -6 ≤ y ≤ 10}
Yes, the relation is a function.
c. Domain: {x| -10 ≤ x ≤ 10}
Range: {y| -6 ≤ y ≤ 10}
No, one y-value is shared by two x-values.
d. Domain: {x| -10, -8, -6, -4, -2, 0, 2, 4, 6, 8, 10}
Range: {y| -6, -5, -1, 1, 3, 4, 5, 7, 8, 10}
No, one y-value is shared by two x-values.
Answer: A.
Step-by-step explanation:
just answered on edge2020
expressions that are equivalent to 3(q+2).
A.5q
B.6q
C.3(2+q)
D.6q+3
Answer:
Option C
Step-by-step explanation:
Lets calculate 3(q + 2) first;
Distribute;
3(q + 2) = 3q + 6
Option C because 3(2 + q) = 6 + 3q
-f+2+4f=8-3f what is the answer
Answer:
Answe 6 yeah i know 6
because you due
Answer:
1
Step-by-step explanation:
move like terms to each side
-f+4f+3f=8-2
simplify
6f=6
divide by 6 each side
f=1
If you can answer this question please do it as soon as you can.
9514 1404 393
Answer:
6.045×10^40 ergs1.8×10^-2 mmStep-by-step explanation:
A) Your scientific or graphing calculator can tell you the product:
(3.9×10^33 erg/s)(1.55×10^7 s) = 6.045×10^40 ergs
__
B) 10^2 mm is 100 mm, about 4 inches, so 1.8×10^2 mm is about 7 inches. This is somewhat larger than the diameter of a human hair (and about the same size as the diameter of a human head).
1.8×10^-2 mm = 18 μm is a more reasonable estimate of hair diameter
(The range of hair diameters is reportedly about 17 to 181 μm, so the given dimension is on the low end.)
carry out the multiplication of the expressions in each of the following pairs 4p,q+r
Answer:
Step-by-step explanation:
4p ( q + r )
4pq +4pr
Hope this helps
plz mark as brainliest!!!!!!
Who is my Dad?
A. Donkey kong
B. King kong
C. papa smurf
D. Napolean bonepart
Answer:
Donkey Kong
Step-by-step explanation:
what is the answer for −3x−6+(−1)
Answer:
-3x-7
Step-by-step explanation:
Combine like terms
-6+-1 = -6-1 = -7
Hence, it's -3x-7
WILL MARK BRAINLEST!!
Solve for y put in slope intercept form
(y = mx + b) to find slope
Y + 6 = 1/2 ( x + 20)
Show work please
I’m not very great a math and I’m a bit rush so yeah
Answer:
y=1/10x -9
Step-by-step explanation:
slope intercept formula - y=mx+b
What are the slope and the y-intercept of the linear function that is represented by the table?
Х
3
4
y
1
30
2
1
2
15
1
4
13
30
NICO
3
5
Answer:
1/4
Step-by-step explanation:
HELP HAVING BAD DAY
Stanley practices his running, swimming and biking every day. During these practices he runs at 9 mph, bikes at 16 mph and swims at 2.5 mph. Yesterday he ran for half an hour longer than he swam, and his biking time was twice his running time. How long did Stanley run, swim, and bike yesterday if the total distance he covered was 64 miles?
If Stanley swam for t hours yesterday, what was his running time?
Answer:
9
Step-by-step explanation:
9 (t3+0.5)
his running time is 9
Answer:
1.5 Hrs
Step-by-step explanation:
SWIM: Time: T Rate: 2.5mph Distance: 2.5T
RUN: Time: T+0.5 Rate: 9mph Distance: 9T+4.5
BIKE: Time: 2T+1 Rate: 16mph Distance: 32T+16
2.5T+9T+4.5+32T+16 = 64
43.5T+20.5=64
43.5T=43.5
T=1
RUN: T+0.5= 1+0.5=1.5
The admission fee to an amusement park is $18. It costs an additional c dollars to rent a locker to hold your belongings. The total cost for 2 people to enter the amusement park and each rent a locker is $46. How much does it cost for one person to rent a locker?
Answer:
$5 for one person to rent a locker
Step-by-step explanation:
Assuming the $18 is for one person, then two people it would be $36, since $18 + $18 = $36 and it's stated there's two people. If you subtract $36 from $46 you get $10, and since it's for two people you split it in half (so basically divide by 2) you get $5 for a locker.
Hope this helps!
2x+b=w,for x i need to know what this answer is
Answer:
Let's take this step by step:
2x+b=w
2x+b-b=w-b (the basics to what we are trying to do is to get x alone so that it equals whatever is on the other side of the equation.)
2x=w-b(now that we got rid of the b on the left side of the equation by canceling it out, we have to subtract by b on the other side of the equation as well)
2x divided by 2=w-b/2 (For our final step x is being mulitplied by 2 so what we can do to get x alone is canel out the multiplication by dividing by 2. What this does is it leaves x alone showing us what x equals)
x=w-b/2
Step-by-step explanation:
The weight W of an aluminum flatboat varies directly with the length L of the boat. If a 6-foot boat weighs 102 pounds, then what is the weight of a 11-foot boat? The weight of a 11-foot boat is nothing pounds
Answer:
The 11 foot boat ways 187 pounds
Step-by-step explanation:
102 / 6 = 17
17 * 11 = 187
Consumer Math Test
You borrow $13,000 to buy a car. You borrow the money for 4 years and the interest rate is 2.5%
Answer:
$1300 hope this helps
Step-by-step explanation:
i= prn/100
i= 1300x2.5x4/100
i= $1300
put these numbers from least to greatest
0.491, 0.49, 0.09, 19.4, 0.049
Answer:
0.09, 19.4, 0.49, 0.049, 0.491
Step-by-step explanation:
Solve in Multi Step (Show work)
-2x + 5 = -6
Answer:
5.5
Step-by-step explanation:
-2x + 5 = -6
subtract -5 from -6 then divide by -2
i hope i explained it well.
Answer: 5.5 is your answer.
Step-by-step explanation:
1) -2x + 5 -5 = -6 -5 <------Subtract 5 from 5 and 5 from -6.
2) -2/-2 x = -11/-2 <---------------Now divide -2 by -2 and divide -2 by -11.
3) x = 5.5 <-------------And this is your answer.
Hope this helped! Have a great day! :).
Solve the system by substitution.
Y = 10x
7x + 3y =
37
Answer:
x=1 , y=10
Step-by-step explanation:
i attached photo of steps of solution
I SWEAr If you DO THIS I WilL GIVE brainiest AND GIVE 5 STAR RATING!! xoxo
How do you find range and domain
Answer:
another way to identify the domain and range of functions is by using graphs. because the domain refers to the set of possible input values z the domain of a graph consists of all the input values shown on the x-axis. the range is the set of possible output values, which are shown on the y-axis.
A. Corresponding angles
B.Same side interior angles
C. Alternate exterior angles
D. alternate interior angles
Answer:
Alternate exterior angles
A line is represented by the equation y=3x+5. what are the coordinates
URGENT NEED HELP DUE IN 12 AM
Answer:
ASA
Step-by-step explanation:
you can prove it by using ASA (Angle Side Angle)
ASA is a postulate that states if two angles and one side are congruent to another triangle.
hope this helps :)
brainliest?
Answer:asa
Step-by-step explanation:
because it is lol
If the measure of angle ACB is 65 degrees, find the measure of angle BCD
Answer:
the answer is 25
Step-by-step explanation:
you take 65 and add 90 to it because there is an angle that is 90 and you should get 115 then you take 115 and subtract it from 180. and you will get 25 and 25 is your answer.
hope this helped!
p.s it would be cool if you gave me brainliest.
Answer: The answer would be 25
Step-by-step explanation:
Hope this helps!
10points!
will make brainliest for correct answer
-8 1/3 + (- 1/6)
Answer:
-8 1/2
Step-by-step explanation:
-8 1/3 + (- 1/6)
Get a common denominator
-8 2/6 - 1/6
Combine terms
-8 3/6
Simplify
-8 1/2
help pls ?? it’s confusing
Answer:
2x+24+4x+36=180
6x+60=180
6x=180-60
6x=120
x=120/6
x=20
So <KPL=64 AND <JPL=116
Answer:
KPL = 64 JPL = 116
Step-by-step explanation:
This is a straight angle, meaning this angle will equal 180 degrees.
They give you two parts of this angle, which is (2x+24) and (4x+36)
All you have to do is add them and set this equal to 180.
So when you add 2x+24+4x+36=180 that equals 6x+60=180
Do the algebra, subtract 60 on both sides.
180-60=120
Now divide 6 on both sides.
120/6 = 20
Great, so now solved x. To find the angles, we must plug them in.
2(20)+24= 64
4(20)+36= 116
So your answer should be
KPL = 64 and JPL = 116.
This is correct because when you add these results together, you get 180.
Determine the domain and range for this relationship.
f(x)=72-12x
Domain:
Range:
Answer:
see below
Step-by-step explanation:
f(x)=72-12x
Domain:
Is the possible values that x can take
This is a line and x can take all values
(-∞,∞) or all real numbers
Range:
Is the possible values the output can take
This is a line and y can take all values
(-∞,∞) or all real numbers
Answer: The domain is 6, and range is 72 I believe.
Step-by-step explanation:
I really hope it helps :0
Please help!
Each of these is a pair of equivalent ratios, for each pair explain why they are equivalent. 5:1 and 15:3
10.2 and 25.5
198:1,287 and 2:13
Answer:
the best way I can explain this is that you have to simplify and you get the other ratio. think of them as fractions.
Find the value of x
A-6
B- 4
C- 11
D- 5
Answer:
b.11
Step-by-step explanation:
3x+2+70=9x+6
put your like terms on one side:
9x-3x=70+2-6
6x=66
divide both sides by 6
x=11