Answer:
r = 6
Step-by-step explanation:
4r + 6r - 13 = 7r + 5
10r - 13 = 7r + 5
10r - 7r = 13 + 5
3r = 18
r = 6
hi there! here's my answer for you...
Answer:
r = 6
Step-by-step explanation:
4r + 6r - 13 = 7r + 5
10r - 13 = 7r + 5
10r - 13 + 13 = 7r + 5 + 13
10r = 7r + 18
10r - 7r = 7r + 18 - 7r
3r = 18
3r/3 = 18/3
r = 6
hope this helped. have a good one!
What is the Inverse Point of (1,5)?
Answer:
The Inverse point of (1,5)=(5,1)
1 Which expression is equivalent to 1/3y?
• 1/3(y+12)-12
1/6y+1/3(y+3
1/6y+1/6(y+12)-2
1/3y+1/3(6-y)
Answer:
The answer is 1/6y+1/6(y+12)-2
Answer:
1/6y+1/6(y+12)- 2
Step-by-step explanation:
Distribute [tex]\frac{1}{6}[/tex] through the parentheses : [tex]\frac{1}{6}[/tex]y + [tex]\frac{1}{6}[/tex]y + 2 - 2Remove the opposites and calculate ( since two opposites add up to zero remove them from the expression) : [tex]\frac{1}{6}[/tex]y + [tex]\frac{1}{6}[/tex]yCalculate the sum : [tex]\frac{1}{3}[/tex] ySolution : [tex]\frac{1}{3}[/tex] y
Do the ratios 8/16 and 1/2 form a proportion?
Answer:
yes
Step-by-step explanation:
They both equal to one half, which makes them proportional
find each percent increase
from 20 teachers to 30 teachers ___
Solve -3(5x-9) please
Answer:
12
Step-by-step explanation:
A bicycle is traveling at 14 miles per hour.
How many feet will it cover in 35 seconds?
Answer:
The answer is 31 how that help
When sawdust is poured into a pile, it takes the shape of a cone where the proportion of height to base diameter is always the same. The volume of a cone can be found using the formula 1 V = ar-h, where r is the radius of the base circle, and h is the height of the cone. 3 A particular sawdust pile has a base diameter of 35 feet when the height is 30 feet. Find the volume of this sawdust pile when it is 55 feet high. ft3 Give your answer as an expression (using pi for 7), or as a value accurate to the nearest whole number.
Answer: i really don’t u derstans this
Step-by-step explanation:
Please help me please and fast
Answer:
b
Step-by-step explanation:
sorry if wrong
Graph the line y=-3/4x+1
Step-by-step explanation:
That is what your line should look like :)
The equation of line is y = ( -3/4 )x + 1 , where the slope is m = ( -3/4 )
What is an Equation of a line?The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And y - y₁ = m ( x - x₁ )
y = y-coordinate of second point
y₁ = y-coordinate of point one
m = slope
x = x-coordinate of second point
x₁ = x-coordinate of point one
The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given data ,
Let the equation of line be represented as A
Now , the value of A is
Substituting the values in the equation , we get
y = ( -3/4 )x + 1 be equation (1)
On simplifying the equation , we get
The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept
And , the line is plotted in the graph
Hence , the equation of line is y = ( -3/4 )x + 1
To learn more about equation of line click :
https://brainly.com/question/14200719
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HELPPPPPP MEEEEEE PLEASEEEEEE!!!!!!
Please help it’s due
5 = 60
6 = 150
7 = 30
if you have any more questions let me know
A school is installing a flagpole in the central plaza. The plaza is a square with side length 100 yards as shown in the figure below. The flagpole will take up a square plot in the middle of the plaza and its base will have an area of x^2−6x+9 yd^2.
Area of the flagpole plot: x^2−6x+9
Find the length of the base of the flagpole by factoring. (Hint: Because the area of the flagpole is an expression that involves the variable x, the length of the base will also involve the variable x.)
The length of the base of the flagpole is
Answer:
[tex]x-3[/tex]
Step-by-step explanation:
The area of the flagpole base is [tex]x^2-6x+9\ \text{yd}[/tex]
where the factor of the equation is the length of the base.
In order to find the length we need to factorize the equation
[tex]x^2-6x+9[/tex]
[tex]=x^2-3x-3x+9[/tex]
[tex]=x(x-3)-3(x-3)[/tex]
[tex]=(x-3)(x-3)[/tex]
The length of the base of the flagpole is [tex](x-3)\ \text{yd}[/tex].
The area of a square base is the product of the side lengths.
The length of the base is x - 3
The area is given as:
[tex]\mathbf{Area =x^2 - 6x + 9}[/tex]
Expand
[tex]\mathbf{Area =x^2 - 3x - 3x + 9}[/tex]
Factorize
[tex]\mathbf{Area =x( x- 3) - 3(x - 3)}[/tex]
Factor out x - 3
[tex]\mathbf{Area =( x- 3) (x - 3)}[/tex]
Express as squares
[tex]\mathbf{Area =( x- 3)^2}[/tex]
Rewrite the area as:
[tex]\mathbf{Length^2 =( x- 3)^2}[/tex]
Take square roots of both sides
[tex]\mathbf{Length =x- 3}[/tex]
Hence, the length of the base is x - 3
Read more about area of squares at:
https://brainly.com/question/1658516
Which ordered pair is a solution to the equation y=5x-25?
(12,50)
(5,10)
(2,25)
(10,25)
Answer:
c bye
Step-by-step explanation:
Can someone help plz helpppp!!!!!
Answer:
4N left
5N left
0N (balanced)
9N right
Step-by-step explanation:
The net force is the vector sum of all of the forces acting on an object. To find the net force when there are two opposite forces subtract the smaller number from the larger, for example, 7-2. Then take to total, 5N, and add the direction of the stronger force. If the equation equals zero that means you have a balanced force. To find the force of two actions in the same direction simply add them.
-4 2/3 x -1 1/2 with work shown pls
Answer:
g
Step-by-step explanation:
e
Which algebraic expression is equivalent to the expression below?
(8x + 12) + (9x - 3)
A.
20x - 6
B.
17x + 9
C.
29x - 3
D.
17x + 15
Answer:
b
Step-by-step explanation:
Solve the equation 7 − 2x = 19.
Question 11 options:
x = −13
x = −6
x = 6
x = 13
Answer:
-6
Step-by-step explanation:
firstly arrange whole equation,
-2x+7=19
Now, Transpose 7 to RHS (right hand side)
-2x=19-7
-2x=12
Further, seperate coefficient -2 from x
and transpose it to RHS and divide them
x=12/-2
Hence, x= -6
which shows the mixed number for 9/4 in the simplest form
Answer:
2 1/4
Step-by-step explanation:
what is the slope of an equation of the line that passes through the point (3,-5) and has a slope of 0
Answer:
y=0x-5
Step-by-step explanation:
hope this helps :3
if it did pls mark brainliest
A 2 1/2 pound of grass seed covers 1/8 of an acre. How much grass seed is needed for 1 acre
Answer:
20 pounds
Step-by-step explanation:
You just multiply 2 1/2 by 8 to figure out the whole acre
2.5x8=20
Answer:
20 pounds of grass seeds
Step-by-step explanation:
2.5: 1/8
? : 1
multiply both sides by 8.
2.5*8=20
? = 20
I need step by step help on how to work out this percentage question
Answer:
$15.7, $141.3Step-by-step explanation:
Discount
157*0.1 = $15.7Sale price
157 - 15.7 = $141.3What number should the fraction 15/3 be multiplied by in order to equal 1
soo ya marking brainlist 165 points
Answer:
Step-by-step explanation:
Just so you know, you are stuck with awarding just 5 points.
15/3 * 1/5 = 1
The weekly amount spent by a small company for in-state travel has approximately a normal distribution with mean $1450 and standard deviation $220. What is the probability that the actual expenses will exceed $1560 in 20 or more weeks during the next year?
Answer:
0.0903
Step-by-step explanation:
Given that :
The mean = 1450
The standard deviation = 220
sample mean = 1560
[tex]P(X > 1560) = P( Z > \dfrac{x - \mu}{\sigma})[/tex]
[tex]P(X > 1560) = P(Z > \dfrac{1560 - 1450}{220})[/tex]
[tex]P(X > 1560) = P(Z > \dfrac{110}{220})[/tex]
P(X> 1560) = P(Z > 0.5)
P(X> 1560) = 1 - P(Z < 0.5)
From the z tables;
P(X> 1560) = 1 - 0.6915
P(X> 1560) = 0.3085
Let consider the given number of weeks = 52
Mean [tex]\mu_x[/tex] = np = 52 × 0.3085 = 16.042
The standard deviation = [tex]\sqrt {n \time p (1-p)}[/tex]
The standard deviation = [tex]\sqrt {52 \times 0.3085 (1-0.3085)}[/tex]
The standard deviation = 3.3306
Let Y be a random variable that proceeds in a binomial distribution, which denotes the number of weeks in a year that exceeds $1560.
Then;
Pr ( Y > 20) = P( z > 20)
[tex]Pr ( Y > 20) = P(Z > \dfrac{20.5 - 16.042}{3.3306})[/tex]
[tex]Pr ( Y > 20) = P(Z >1 .338)[/tex]
From z tables
P(Y > 20) [tex]\simeq[/tex] 0.0903
Georgia said she could make 11 out of 20 blankets for a craft show. She has already made 3 blankets. What percent of the 20 blankets does she still have to make? helppppppppppppppppppppp pleaseeeeeeeeeeeeeeeeeeeeeeeeeee i wil give you 100 0point i swerare
Answer:
Step-by-step explanation:
Total she can make = 11
Amount she has already made = 3
Amount she still have to make = 11-3 = 8
% of the 20blanket she still have to make = 8/20×100
= 8×5
= 40%
Hence she Still need to make 40% of the 20blanket
Answer:
11-3=8
40% of 20 is 40/100*20 = 8
Step-by-step explanation:
brainliest please
What is the equation of the line showed in this graph?
Answer:
y=1
Step-by-step explanation
What is 1/10 of the digit in the ten thousand place of 683,906.826.24
Find the percent of change
8 feet to 10 feet
Answer:
10 feet is [tex]\frac{10}{8}[/tex] or 1.25% of 8 feet.
Step-by-step explanation: :D
Please help it’s due
1 = 70
2 = 20
3 = 70
4 = 20
5 =110
Please help ASAP!!
What is the sum of the square root of 676 and square of 24
Step-by-step explanation:
square root of 676 is equal to 26
square of 24 is equal to 576
576+26 = 602
Step-by-step explanation:
[tex] \sqrt{676 } = 26[/tex]
[tex] {24}^{2} = 576[/tex]
576+26=602
15 POINTS
A housepainter mixed 5 gal of blue paint with every 9 gal of yellow paint in order to make a green paint. Which ratio of gallons of blue paint to gallons of yellow paint will make the same shade of green paint?
A. 10 : 45
B. 30 : 54
C. 6 : 10
D. 27 : 15
explanation if you know how to explain
Answer:
The answer is B
Step-by-step explanation:
The problem is asking for the same ratio as 5:9
Multiply both sides by 6 to get 30:54
