I need help with this question
Doea the equation 6y=18x represent a direct variation? If it does, what is the constant of variation
Answer:
Yes
3
Step-by-step explanation:
a direct variation is written in the form
y = kx
k is a constant which is usually non zero.
6y = k18x
k = 3
An increase in x would lead to an increase in y
A pentagon has 5 equivalent sides. If each side is represented by the expression 2k+3, what is the perimeter
If a circle has a diameter of 24 inches, which expression gives its area in
square inches?
Answer:
C
Step-by-step explanation:
Area of a circle = pi*r^2
Diameter is twice the radius so divide 24/2 = 12
Then use 12 as radius in the area of a circle equation.
please help im tried :(
Answer:
45°
Step-by-step explanation:
well all the side are equal. Since each angle of this square is 90, and if I'm not mistaken, the two angle are equal to each other.
So both angle x and y are 45°
Please help! Quickly!!!!
Answer:
72, 48
Step-by-step explanation:
Each segment would be worth 12 hours. 6*12 is 72, 4*12 is 48. 72+48 is 120.
A box of candy contains three times as many cherry pieces. It hasfour more grape pieces than cherry pieces. There are 46 total pieces in the box. How many cherry pieces are in the box
Answer:
The number of cheery pieces in the box are [tex]18[/tex].
Step-by-step explanation:
Let the number of orange pieces in the box be [tex]x[/tex].
The box contains three times as many cherry pieces as orange pieces.
So, the number of cherry pieces in the box be [tex]3x[/tex].
It has four more grape pieces than cherry pieces.
So, the number of grape pieces in the box be [tex]3x+4[/tex].
There are [tex]46[/tex] total pieces in the box.
So, [tex]x+3x+3x+4=46[/tex]
[tex]\Rightarrow 7x+4=46[/tex]
[tex]\Rightarrow 7x=46-4[/tex]
[tex]\Rightarrow 7x=42[/tex]
[tex]\Rightarrow x=\frac{42}{7}[/tex]
[tex]\Rightarrow x=6[/tex]
So, the number of cherry pieces [tex]=3x=3\times 6=18[/tex].
Hence, the number of cheery pieces in the box are [tex]18[/tex].
What is each percent of change? Round to the nearest whole percent if
necessary. Is the percent of change an increase or decrease? 30 to 90.*
Answer:
Its an increase
30 to 90
I= 100 x (f-i)/i
I= 100 x 90-30/30
I= 100 x 2
200% increase
Graph the line with slope of 5/3 and goes through the point (2,1).
Answer: ^^ good luck
just follow what they say. graph (2,1). rise over run, so up 5 and to the right 3.
Answer:
This is the correct answer the guy above plotted it wrong!
The yellow line is the correct plot!
. Lisa takes a 3,014 mile long trip. She has already traveled 95 miles. She has 7 days left in her trip. How many miles does she need to travel each day to complete the trip?
Answer:
Lisa would travel 417 miles a day.
Step-by-step explanation:
subtract 3,014 - 95 = 2, 919
Then divide 2, 919 / 7 = 417
1 What is the RANGE for the following graph?
25 POINTS PLS HELP
Answer:
1 ≤ x ≤ 5
Step-by-step explanation:
please help me on this will give you brainliest
Answer:9,000,000 + 60,000 + 400
Step-by-step explanation:
Help Please with these 2!
Thank you!
Answer:
if you multiply the denominator by the AB^3 by 7 you wll get your common factor
Step-by-step explanation:
Step-by-step explanation:
Question 15:
5(x - 9) - 2(x + 3)
= (5)(x) + (5)(-9) - (2)(x) - (2)(3)
= 5x - 45 - 2x - 6
= 3x - 51
= 3(x - 17).
Question 16:
The terms 36x, 18y and 9 have GCF of 9.
Hence 36x - 18y + 9 = 9(4x - 2y + 1).
On a coordinate plane, Point C is at (-3,5) and Point D is at (4,9). What is the distance from point C to point D?
Answer:
5[tex]\sqrt[\\]{3} \\[/tex] or about 8.66
Step-by-step explanation:
To find the distance of any line, you have to use distance formula.
[tex]\sqrt{(y-y_{1} )^{2} + (x-x_{1} )^{2}[/tex]
So, we insert our points:
[tex]\sqrt{(5-9 )^{2} + (-3-4 )^{2}[/tex]
Then you solve, and should end up with [tex]\sqrt{75}[/tex]. Either you can simplify it for an exact number, or you can round. It depends on what the directions ask for.
In a right triangle, if a = 8in and c = 14in, what is b? Round to three decimal places.
Answer:
11.49
Step-by-step explanation:
If A=8
And C=14 then
Please answer (*´∇`*)
What are the coordinates of the point on the directed line segment from (1, -3) to
(7,5) that partitions the segment into a ratio of 1 to 3?
Answer:
The point of contact = (-2,-7)
Step-by-step explanation:
Explanation
Given that the points are (1,-3) and (7,5)
Given that ratio m:n = 1:3
The line segment AB divides 1:3 internally
[tex](\frac{mx_{2}-nx_{1} }{m-n} , \frac{my_{2} -ny_{1} }{m-n} )[/tex]
1:3
A(1,-3) and B(7,5)
[tex](\frac{1(7)-3(1) }{1-3} , \frac{1(5)-3(-3) }{1-3} )[/tex]
([tex](\frac{4}{-2} ,\frac{14}{-2} )[/tex]
(-2 ,-7)
The point of contact = (-2,-7)
What is the value of the expression (1/6)^-1? Write your answer as simplified as possible.
Answer:
[tex]6[/tex]
Step-by-step explanation:
Recall that [tex]a^{-b}=\frac{1}{a^b}[/tex]. Therefore, any number [tex]n[/tex] raised to the power of [tex]-1[/tex] will be [tex]\frac{1}{n^1}=\frac{1}{n}[/tex] (the reciprocal of that number).
Thus, the value of the expression [tex]\left (\frac{1}{6}\right)^{-1}[/tex] is:
[tex]\left (\frac{1}{\frac{1}{6}}\right )=\fbox{$6$}[/tex].
If 5 is added to the square of a number, the result is 30. Find all such numbers,
Answer:
5, -5
Step-by-step explanation:
We have the problem x^2+5=30
Same to both sides
x^2=25
And 25 is a perfect square, x = 5
BUUUUUUUT..........
x could also equal to -5 because no numbers that are squared can be negative
Confused?
Squaring a number means doing the number multiplied by itself
A negative multiplied by a negative equals a positive
A positive multiplied by a positive equals a positive
Under no circumstances can something squared be a negative number
-5*-5 also equals 25.
So those are your two numbers
Let me know if you have any questions
Ace makes an 8% commission on any artwork that he sells. If he sells $125 wroth of artwork, how much commission does he get.
I will give brainly
Answer:
10
Step-by-step explanation:
125 x .08 = 10
I need help with this problem!
Answer:
104
Step-by-step explanation:
100%= 1.00
so
420%= 4.20
Multiply 4.20×20
84
now add the original 20
104. She has 104 boxes in total.
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!
Answer:
104
Step-by-step explanation:
20 + (20*4) + (20*0.2)
= 20 + 80 + 4
= 104
Is it possible to find a value of $x$ so that the value of the surface area (in square inches) is equal to the value of the volume (in cubic inches)?
If possible, what is the value of $x$ ?
Write an equation to justify your answer.
The box has volume
11 in × 3 in × x in = 33x in³
and surface area
2 (11 in × 3 in + 11 in × x in + 3 in × x in) = (66 + 28x) in²
The volume and area have the same value if
33x = 66 + 28x
Solve this equation for x :
33x - 28x = 66
5x = 66
x = 66/5 = 13.2
Write the phrase as an expression.
the product of a number x and five
Answer:
5x
product means muliply so 5 times x
what's the place value of the 1 in 352.01
Answer:
100ths place
Step-by-step explanation:
Tom is applying for a visa.
He has to pay £2,300 for the visa as well as a 7% charge on the visa price for an on-the-day service.
If Tom has 1 year to save, how much money should he save per month to be able to cover his costs?
Round your answer to the nearest £10
Answer:
£210
Step-by-step explanation:
Given that :
Visa cost = £2300
7% charge of visa price = (0.07 * £2300) = £161
Total cost = £(161 + 2300) = £2461
Amount to be saved per month = £2461 / 12 = £205.08333
= £210 (nearest £10)
271 divided by 3 equals 93. 6 thousand 38 divided by 6 equals 1 thousand 73. 953 divided by 7 equals 136 R 1. 5 thousand 608 divided by 8 equals 71. 2 thousand 683 divided by 4 equals 67 R 3. witch is correct?
Answer:
6 thousand 438 divided by 6 equals 1 thousand 73
953 divided by 7 equals 136 R 1
Step-by-step explanation:
Computation for the equations that are correct
Based on the information given the equations that are correct are:
6 thousand 438 divided by 6 equals 1 thousand 73 which is written as 6,438/6=1073 will be calculated using this formula
Numerator/Denominator
Where,
Numerator=6,438
Denominator=6
Let plug in the formula
6,438/6
=1,083
953 divided by 7 equals 136 R 1 which is written as 953/7= 136.1 is calculated using this formula
Numerator/Denominator
Where,
Numerator=953
Denominator=7
Let plug in the formula
953/7
=136.1
Therefore the equations that are correct are :
6 thousand 438 divided by 6 equals 1 thousand 73 and 953 divided by 7 equals 136 R 1
Solve the system of equations by using substitution.
y = 2x – 3
y = x+4
Answer:
point form=7,11 x= 7,y =11
Step-by-step explanation:
Answer:
Step-by-step explanation:
y=2x-3
y=x+4
2x-3=x+4
2x-x=4+3
x=7
y=7+4=11
Help me please (the problem is in the photo)
Pls Helppp will give brainliest if u answer correct
Drag and drop the numbers to order them from least to greatest.
Answer: -5.042, -5 1/20, 5 3/7, 5.48
Step-by-step explanation:
Write the mixed fractions as decimals and calculate from there
Answer:
-5 1/20 -5.042 5 3/7 5.48
Step-by-step explanation:
Hope this helps
Help plz I need help i have no idea what to do
Answer:
the answer will be 15 number D
Answer:
x = 15 (D)
Step-by-step explanation:
First, we distribute the -1/2:
-1/2 x x = -1/2x
-1/2 x 5 = -2.5
Now we have -1/2x + (-2.5) = -10
Move the variables to one side and the regular numbers on the other (in other words, subtracting both sides by -2.5:
-1/2x = -10 + 2.5
-1/2x = -7.5
x = -7.5/(-1/2)
x = 15 (D)