algebraic inverse proportion
y is inversely proportional to x.
When y=30, x=3
Work out y when x=6
Answer: tell me if i am wrong
yx = k, where k is a real constant.
When y = 30, x = 3.
=> k = (30)(3) = 90.
Hence when y = 6, x = k/y = (90)/(6) = 15.
Step-by-step explanation:
help pleaaseee rons of points and brainliest just need help.
Since both equations equal y they need to equal each other.
2x - 5 = -3x + 10
Add 3x to both sides:
5x -5 = 10
Add 5 to both sides
5x = 15
Divide both sides by 5
X = 3
Now solve for y by replacing x with 3:
Y = 2(3)-5 = 6-5 = 1
Y = -3(3)+ 10 = -9+ 10 = 1
Check: replace y with 1 and solve for x:
1 = 2x -5
Add 5 to both sides
6 = 2x
Divide both sides by 2
X = 3 ( True)
3y - 21 = 12x How to solve for y
Answer:
y=4x+7
Step-by-step explanation:
Let's solve for y.
3y−21=12x
Step 1: Add 21 to both sides.
3y−21+21=12x+21
3y=12x+21
Step 2: Divide both sides by 3.
3y /3 = 12x+21 /3 y=4x+7
brainliest please?
what is it m + 5 = 8.9 solve for the
Answer:
3.9
Step-by-step explanation:
m+5=8.9
m=8.9-5
m=3.9
10. Please help me with this question
Answer:
9
Step-by-step explanation:
because 1 is one hour and the first line across is 5 so it it is not 6 miles so it has to be 9 miles she rode
Find the surface area of a pringles can that has a radius of 1.6 inches and a height of 9.8 inches. (Find the WHOLE surface area, including the top cover.
Answer:
10.55
Step-by-step explanation:
Sarah earns $1800 a month. She pays $430 for rent every month, and her other monthly expenditure is $500. The remaining amount is deposited by her in the bank. What is the amount deposited by Sarah in her bank?
A. $1050
B. $950
C. $870
D. $680
Find the area of circles whose diameters
(a)14 cm
(b) 28 cm
Answer:
(a) 153.93804
(b) 615.75216
Step-by-step explanation:
(a) A=πr2
14 divided by 2 =7
=π*7 squared =153.93804
(b) A=πr2
28 divided by 2= 14
=π*14 squared=615.75216
Write an equation for esch line in Slope Intercept Form
Answer:
Step-by-step explanation:
Y intercept is at (0,1) so b=1
slope is go 4 down 1 right so slope is -4
Equation is
-4x+1=y
Help me pls I’m so confused
Answer:
(2u+8)(2u+10) inches^2=4u^2+36u+80 inches^2
Step-by-step explanation:
I don't know what the options are. But I'll try to help you anyway. Is that variable for the width of the frame... u? We'll just use u.
So the area of a rectangle is found using length* width. To find the combined area of the mat and the photo, we need the combined length and the combined width.
combined length=u+8+u
(Think of it from the top to the bottom: the top strip has a length of u inches, 8 is given, and the bottom strip is also u inches long.) You can simplify it to get 2u+8 inches.
combined width=u+10+u=2u+10 inches
To find the area, you need to multiply these dimensions.
(2u+8)(2u+10) inches^2
I think this would be your answer for Part B, because it's factored.
I think for Part A, you need to multiply it all out.
=2u(2u+10) + 8(2u+10)
=4u^2+20u + 16u+80
=4u^2+36u+80 inches^2
Hope I could help you!
Which three side lengths will NOT form a triangle?
a- 4cm, 2cm, 8cm
b- 5in, 8in, 4in
c- 2ft, 3ft, 6ft
d- 5m, 2m, 4m
Answer:
i believe it's A bc 8 cm is too long to reach 4 cm
help also dont mind karl
Answer:
15/8
Step-by-step explanation:
the mixed answer is 1 7/8
but also the answer is 15/8
Can someone help plss :)
Answer:
[tex] l(\widehat {KM}) = 15.07 \: units[/tex]
Step-by-step explanation:
[tex] Central\: angle \:(\theta) = 96\degree [/tex]
Radius (r) = 9 units
[tex]l(\widehat {KM}) = \frac{ \theta}{360 \degree} \times 2\pi r \\ \\ l(\widehat {KM}) = \frac{96 \degree}{360 \degree} \times 2 \times 3.14 \times 9 \\ \\ l(\widehat {KM}) = \frac{96 }{360} \times 2 \times 3.14 \times 9 \\ \\ l(\widehat {KM}) = \frac{5,425.92}{360}\\ \\ l(\widehat {KM}) = 15.072\\ \\ l(\widehat {KM}) = 15.07 \: units[/tex]
Use
I
=
P
R
T
I=PRT to find the total amount in the savings account. Type in "money form".
$350.00 at 6.2% for 2 years
Answer:
43.4
Step-by-step explanation:
Suppose you have a bag with 50 letters tiles in it and 9 of the tiles are the letter m. If you pick a letter tule at random from the bag, probability that is the letter m is 9/50
Answer: True- [tex]\dfrac{9}{50}[/tex]
Step-by-step explanation:
Given
There are 50 letter tiles
9 of them is m letter
Favorable outcomes to draw an m letter tile is 9
The total ways to draw a single tile is 50
Probability is the ratio of favorable to the total outcomes
[tex]P=\dfrac{9}{50}[/tex]
So, the given statement is true
Natalie drives from her home to the art museum. She knows that when she passes the fire station,
she is one fourth of the way to the museum. When she drives another 10 miles past the fire
station, she is two thirds of the way to the museum. How far does Maryann live from the art museum?
museum?
Answer:
is it maryann or natalie lol
Step-by-step explanation:
for which value of k will the equation x^2-5x-k=0 have equal roots
Answer:
therefore the value of k for which the given quadratic equation will have quale and real root
Step-by-step explanation:
k=52 and k=52
Suppose you have a bag 40 marbles and 20 of them are white if you choose a marble without looking the pribability that you choose a white marble is 20/40 describe the probability
Answer:
0.5
Step-by-step explanation:
If there are twenty white marbles in a bag of 40, then the chances of drawing a white marble is 20/40, or 0.5: one chance in two of drawing white.
Deborah surveyed customers in a restaurant to find out their favorite meal. The results of the survey are shown in the able ? One person in the restaurant will be picked at random. Based on the given in information, which statement is true ?
Answer:
I got you homie! B-)
This person’s favorite meal is twice as likely to be hamburger and French fries as it is to be spaghetti.
Step-by-step explanation:
The other person answered with something unhelpful at all
A doll manufacturer is trying to develop a special package for their Holiady Dolls in thee shape of a pyramid with a triangle base. A net of the package is shown below where F is the base of the pyramid. If the height of the package is 10 inches how many cubic inches of space are avalible for the company to fill?
Answer:
80 in³
Step-by-step explanation:
The volume of a pyramid is :
1/3 * base * height
Height = 10
The base is : the area of the triangle :
Area of triangle = 1/2 * base * height
Base = 6 inches ; height of triangle = 8 inches
Area of triangle = 1/2 * 6 * 8 = 24 inches
Base of pyramid = Area of triangle
Therefore ;
Volume of pyramid = 1/3 * 24 * 10
Volume of pyramid = 8 * 10
Cubic inches of space to fill = 80 in³
please help. will give brainliest (100 points)
Assuming the point A has coordinates (2,3) and the center of dilation is the origin.
Then the image of point A under a dilation of scale factor of 4 is (4∗2,4∗3)=(8,12)(4*2,4*3)=(8,12)(4∗2,4∗3)=(8,12)
Hence A(2,3)→A′(8,12)A(2,3)\to A'(8,12)A(2,3)→A
′
(8,12)
In general the rule for a dilation of scale factor of k is (x,y)→(kx,ky)(x,y)\to(kx,ky)(x,y)→(kx,ky)
please mark me as brainliest
Please help! I will mark brainliest!
Answer:
Area = 48 square units
Step-by-step explanation:
You're welcome :)
Write the percent of free space on the computer as a decimal . Volume capacity free space%free space(c:)150GB 60GB 40%
Answer:
Here we know that:
Volume capacity = 150 GB
Free space = 60GB
Here we know that 150 GB represents the 100%, then which percentage represents the 60 GB of free space?
Well, we can write:
60 GB = X
150 GB = 100%
Now we can take the quotient between these two equations:
(60GB/150GB) = X/(100%)
Now we can solve this for X
(60GB/150GB)*(100%) = X = 0.4*100% = 40%
Answer:
there are right :)
Step-by-step explanation:
given 4p = 18-5q. Calculate
i) value when q is 2
ii) value when p is 2
Answer:
i). 2 ii). 2
Step-by-step explanation:
i). 4p = 18 - 5(2)
4p = 18 - 10
4p = 8
p = 2
ii). 4(2) = 18 - 5q
8 = 18 - 5q
-10 = - 5q
q = 2
Find the area of the parallelogram.
Answer:
Area of Parallelogram = B (base) x H (height)
The height = 35 in.
The base = 38 in.
Area = 35 in. x 38 in.
Area = 1330 in.^2 (1330 inches squared)
Answer: 1330
Step-by-step explanation:
Area = Base · Height
Base = 38
Height = 35
38 · 35 = 1330
Therefore
Area = 1330
BER33333 Solving a word problem with two unknowns using a linear...
Devaughn is 8 years older than Sydney. The sum of their ages is 104. What is Sydney's age?
years old
Х
$
?
Answer:
56
Step-by-step explanation:
x+x+8=104
2x=96
x=48
48+8=56
George and Michelle each claimed to have the better recipe for chocolate chip cookies. They decided to conduct a study to determine whose cookies were really better. They baked a batch of cookies using their own recipe. George asked a random sample of his friends to taste his cookies and to complete a questionnaire on their quality. Michelle asked a random sample of her friends to complete the same questionnaire. For her cookies. They than compared the results. Which of the following statements about this study is false?
A. Because George and Michelle have a different population for friends, their sampling procedure makes it difficult to compare the recipes
B. Because George and Michelle each used only their own respective recipes, their cooking ability is confounded with the recipe quality
C. Because George and Michelle each used only the ovens in their houses, the recipe quality is confounded with the characteristics of the oven
D. Because George and Michelle used the same questionnaire, their results will generalize to the combined population of their friends
E. Because George and Michelle each baked one batch, there is no replication of the cookie recipes
Help me please I suck at this
Answer:
Radius is 4.2
Diameter is 8.4
Step-by-step explanation:
diameterd=2r
d=2×4.2
d=8.4
Plz mark as brainllest
Answer:
The answer for radius is 4.2 cm. The answer for diameter is 8.4 cm.
Step-by-step explanation:
If the line cuts halfway through the middle it is a radius, as you can see there. It says 4.2 cm, so that's your radius. If the line is straight through the circle and not cut in half then it is a diameter. The radius is half of the diameter. So if you add 4.2 or multiply 4.2x2 then you get 8.4 which is your diameter.
Find the radius of the sphere with the given volume. (15 points)
volume= 32/3 times pie yd cubed
show your work please
Answer:
r=1.37
Step-by-step explanation:
so first we have to change 32/2 to a decimal
to do that you have to divide 32÷3=10.66...7
the formula to find the radius when given the volume is r=([tex]\frac {v}{4*pi}[/tex])^1/3
r=([tex]\frac {10.6666666667}{4*pi}[/tex])^1/3
r= 1.37
then to check your work-
v=4/3π1.37^3
v=10.77
technically 10.77 and 10.6666666667 aren't equal but that's as close as it'll get
good luck :)
i hope this helps
have a nice day !!
find the gradient of a line that is perpendicular to 8y+4x=5
Answer:
gradient = 2
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope (gradient) and c the y- intercept )
Given
8y + 4x = 5 ( subtract 4x from both sides )
8y = - 4x + 5 ( divide the terms by 8 )
y = - [tex]\frac{1}{2}[/tex] x + [tex]\frac{5}{8}[/tex] ← in slope- intercept form
with gradient = - [tex]\frac{1}{2}[/tex]
Given a line with gradient m then the gradient of a line perpendicular to it is
[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{-\frac{1}{2} }[/tex] = 2
2 is the gradient of a line that is perpendicular to 8y+4x=5
What is slope of Line?The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane
The slope of line can also be called ad gradient of a line.
The standard form of line or slope intercept form of a line is given by
y=mx+c
where m is the slope of line and c is the y intercept.
The given equation of line is 8y+4x=5
We need to convert the equation of line to Slope intercept form
8y=5-4x
Divide both sides by 8
y=5/8-4/8x
y=-1/2x+5/8
So m is -1/2.
Two lines are said to be perpendicular if m₁m₂ =-1
if m₁=-1/2
then we need to calculate m₂
-1/2m₂=-1
m₂=2
Hence gradient of a line that is perpendicular to 8y+4x=5 is 2.
To learn more on slope of line click:
https://brainly.com/question/14511992
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