Answer:
the lager value of y is 4.
Step-by-step explanation:
Given;
(y-1)² = 4y - 7
Simplify as follows;
(y - 1)(y - 1) = 4y - 7
y² - y - y + 1 = 4y - 7
y² - 2y + 1 = 4y - 7
Collect like terms
y² -2y - 4y + 1 + 7 = 0
y² - 6y + 8 = 0
Factorize the equation;
y² -2y - 4y + 8 = 0
y(y - 2) -4(y - 2) = 0
(y - 2)(y - 4) = 0
y = 2 or y = 4
Thus, the lager value of y is 4.
Can someone help? Math is a bit hard!
Answer:
I believe that X = 16/9 is the answer
Can someone help me? I am trying to get extra credit in my class so I don't fail
Answer: it should be the second at the top the last one at the bottom
Step-by-step explanation:
15/x = 5/6
Plz help me solve this proportion of multiplication plz help
Step 1: Cross-multiply.
15 /x = 5 /6
(15)*(6)=5*x
90=5x
Step 2: Flip the equation.
5x=90
Step 3: Divide both sides by 5.
5x /5 = 90 /5
x=18
Answer:
x=18
Answer:
x=18
Step-by-step explanation:
divide 15 by 5/6= 15 times 6/5, simplify, 3 times 6, simplify, 18
give the other person brainliestt
At 10 AM horn and Tyler both started running toward each other from opposite ends of a 10 mile path along the river. On runs out a piece of 12 minutes per mile. Tyler is it a piece of 15 minutes from now. How far is home run after half an hour
Complete question :
At 10:00 am, Han and Tyler both started running toward each other from opposite ends of a 10 mile path along a river. Han runs at a pace of 12 minutes per mile Tyler runs at a pace of 15 minutes per mile how far does Han run after a half hour
Answer:
2.5 miles
Step-by-step explanation:
Given :
Distance between Horn and Tyler = 10 miles
Horn's pace = 12 minutes per mile
Tyler's pace = 15 minutes per mile
Horn's distance after half an hour :
Time = Half an hour = 30 minutes
Horn's speed = distance / time
Horn's speed = 1 mile / 12 minutes = 0.83333 miles per minute
Hence, Horn's distance after half an hour :
Distance = speed * time
Distance = 0.83333 miles per minute * 30 minutes
Distance = 2.5 miles
Can I get the answer for this, but please explain how to find these things out too I don’t quite get it
Answer: y = -2/3x + 5
Step-by-step explanation: you find the slope by finding “rise/run”. the rise is -2, and the run is 3, so the slope is -2/3. the y intercept is 5
A store owner buys cell phones for $40 and marks up the price by 25%. What is the sale price of a phone?
Answer:
$50
Step-by-step explanation:
Price of the cell phone bought p = $40
% of markup in price = 25%
Selling price of the cell phone = p + (%)p
Selling price of the cell phone = P + (0.25)p
Selling price of the cell phone = p + 0.25p
Selling price of the cell phone = 1.25p
Selling price of the cell phone = 1.25 * $40
Selling price of the cell phone = $50
Mel randomly selects a coin 200 times selecting a penny 45 times A. The experimental probability of 9 selecting a penny is 40 B. The theoretical probability of 6 selecting a penny is 25 C. The difference between the experimental 1 and theoretical probability is 10 What is the wrong answer?
Answer:
the wrong answer is C, but the right answer is A
help please this is for inequality math!! n + 7 < - 3
Answer:
n < -10
Step-by-step explanation:
n+7 < -3
subtract 7 from both sides
n+7-7 < -3-7
n < -10
there are 12 pupils in class. they are asked whether each have a brother or a sister., 9 say they have a brother
Answer:
Step-by-step explanation
What is the area of a rectangle with a base of 7 cm and a height of 11 cm
Answer: 77
Step-by-step explanation:
(BRAINLIEST) HELP ASAP!
Answer:
1380
Step-by-step explanation:
60(15) = 900
2280 - 900 = 1,380
4. 3x + 7 + 5x = 16 + 7 then x =
4.3x+5x=16+7-(7)
9.3x=16
x= 1.72
give me a brainliest if possible. please.. tnx
Answer: 1.72.......
Step-by-step explanation: 4.3x + 7 + 5x = 16 + 7
=> 7 + (5x + 4.3x) = 16 + 7
7 + 9.3x = 23
9.3x = 23 - 7 [ 7 becomes -7 when transferred to RHS]
9.3x = 16
x = 16 /9.3 [ 9.3 becomes 1/9.3 when transferred to RHS]
x = 1.72......
Hope it helped u,
pls mark as the brainliest
^v^
ANSWER ASAP WILL MARK BRAINLIEST
Answer:
8.5
Step-by-step explanation:
(19x19)-(17x17)=72
square root of 72
John and Lauren are looking for a good neighborhood to raise their children. They want neighbors who
have kids and who are fellow rollerbladers as well. The couple surveys a random sample of residents in a
nice-looking neighborhood. Their results are shown below.
Matthew, Patrick, and Susan live in the neighborhood. Matthew rollerblades every Sunday. Patrick is a
computer programmer, but that's all we know about him. Susan is a stay-at-home mom.
Calculate the following probabilities based on the frequency table below.
Round to the nearest hundredth of a percent.
Probability that Matthew doesn't have kids=
%
Probability that Patrick has kids and does not rollerblade =
Probability that Susan rollerblades =
%
%
Kids
No kids
Row total
Rollerblader
41
9
50
Not a rollerblader
3
9
12
Column total
44
-18
62
Answer:
Matthew does not have kids = 18%
Patrick has kids and does not Rollerblade = 4.84%
Susan Rollerblades = 93.18%
Step-by-step explanation:
9 ÷50 = 0.18 = 18%
3÷62 ≈ 0.0484 = 4.84%
41 ÷ 44 ≈ 0.9318 = 93.18%
What’s all the factor pairs of 12
Answer: 1, 2, 3, 4, 6, 12
Answer:
[tex]1 \times 12 \\ 2 \times 6 \\ 3 \times 4 \\ 4 \times 3 \\ 6 \times 2 \\ 12\times1[/tex]
hope this helps you.
~ Hi1315~
in a community center 15 bottles are evenly spaced 12 cm apart from each other in a row for a competition
what is the distance from the fourth bottle to the tenth bottle?
Answer:
72 cm
Step-by-step explanation:
Relative to the first bottle, there are n - 1 spaces between the first bottle and the nth bottle. Since, each bottle is placed relative to the first bottle.
Now, for the fourth bottle, that is, n = 4, there are 4 - 1 = 3 spaces between the first and fourth bottle.
Since each space is 12 cm, the distance between the first and fourth bottle is 12 cm × 3 = 36 cm.
Now, for the tenth bottle, that is, n = 10, there are 10 - 1 = 9 spaces between the first and fourth bottle.
Since each space is 12 cm, the distance between the first and fourth bottle is 12 cm × 9 = 108 cm.
So, the distance between the fourth bottle and tenth bottle is distance between tenth bottle to first bottle minus distance between fourth bottle to first bottle = 108 cm - 36 cm = 72 cm
3
3
-6x + 6y= 6
-6x + 3y=-12
Solve the following system of equations. Write answer as an ordered pair (x,y), or write no
solution or infinitely many solutions if the system results in these cases. * "
(1 Point)
i’ll make u brainliest if u answer
Answer:
The solution set is (5,6).
Step-by-step explanation:
Given equations are:
-6x + 6y= 6 Eqn 1
-6x + 3y=-12 Eqn 2
Subtracting Eqn 2 from Eqn 1
(-6x+6y)-(-6x+3y)= 6-(-12)
-6x+6y+6x-3y=6+12
3y = 18
Dividing both sides by 3
[tex]\frac{3y}{3}=\frac{18}{3}\\y=6[/tex]
Putting y=6 in Eqn 1
-6x+6(6)=6
-6x+36=6
-6x=6-36
-6x=-30
[tex]\frac{-6x}{-6}=\frac{-30}{-6}\\x=5[/tex]
Hence,
The solution set is (5,6).
Which expression represents the volume of the pyramid? StartFraction x cubed + 2 x squared Over 3 EndFraction cm3 StartFraction x squared + 2 x squared Over 2 EndFraction cm3 StartFraction x cubed Over 3 EndFraction cm3 StartFraction x cubed + 2 x squared Over 2 EndFraction cm3
Answer:
(x³+2x²)/3 cm³Step-by-step explanation:
Find the diagram attached
Volume of a pyramid = 1/3 * Base area * height
Base area = x*x
Base area = x²
Height = x+ 2
Get the volume:
Volume of the pyramid = 1/3 * x² * x+2
Volume of the pyramid = x²(x+2)/3
Volume of the pyramid = (x³+2x²)/3 cm³
Answer:
D aka (x³+2x²)/3 cm³
Step-by-step explanation:
I = $60, P = $750, r = 4%, t = ?. Find the amount of time
Answer:
The time required to accumulate simple interest of $ 60.00
from a principal of $ 750.00 at an interest rate of 4% per year is 2 years.
Step-by-step explanation:
Given
Interest I = $60Principle P = $750Interest rate r = 4% = 0.04To determine
Time period t = ?
Using the formula
I = Prt
t = I / Pr
substitute I = $60, P = $750 and r = 0.04 in the equation
t = 60 / ( 750 × 0.04 )
t = 2 years
Therefore, the time required to accumulate simple interest of $ 60.00
from a principal of $ 750.00 at an interest rate of 4% per year is 2 years.
Write an equation for the statement. Then, solve the equation:
The volume of a can varies jointly as the height of the can and the square of its radius. A can with an 8 inch
height and 4 inch radius has a volume of 402.12 inches cubed. What is the volume of a can that has a 2 inch
radius and a 10 inch height?
PLZZ help
Answer:
V = 125.6 in³
Step-by-step explanation:
let V be volume, h the height and r the radius, then the equation relating the quantities is
V = khr² ← k is the constant of variation
To find k use the condition V = 402.12, h = 8, r = 4
402.12 = k × 8 × 4² = 128k ( divide both sides by 128 )
3.14 = k [ note 3.14 is π )
V = 3.14hr² ← equation of variation [ V = πr²h ]
Given r = 2 and h = 10, then
V = 3.14 × 10 × 2² = 3.14 × 40 = 125.6
ple answer the question
12x³+8x²-3x-2 / 4x²+1
Answer:
3x+2, with a remainder of -6x-4
Step-by-step explanation:
WILL GIVE BRAINLIEST PLZ HURRY
Each Saturday, a gym holds one 45-miute Zumba class. The weekday Zumba classes last 30 minutes. The number of weekday classes varies. Last week, the Zumba classes totaled 165 minutes.
Write an equation that you can use to find the number of weekday Zumba classes held
a165c=30+45
b165=30+45c
c165=30c+45
How many weekday Zumba classes were held?
Answer:
C
Step-by-step explanation:
because it is asking to find the number of classes held during the weekday zumba class.
weekday class = 30 minutes
Saturday= 45 minutes
total = 165
james is building a 10-inch by 12-inch rectangular picturee frame. To assure the frame has right angles, james measures thew two diagonals to se if they are equal.When the diagonals are equal, how long is each diagonal?
Answer:
15.62in
Step-by-step explanation:
100 coins
Use the original price and the markdown to find the retail price.
Original price: $60; Markdown: 34%
The retail price is $
.
Answer:
$39.60
Step-by-step explanation:
34% of $60 is $20.40
$60 - $20.40 = $39.60
At a parade, there are m women and 3 times as many men as women. There are 6,352 fewer children than men. Find the number of men and the number of children respectively in terms of m. If m = 7,145 how many people are at the parade?
Answer: 34,932 people
Step-by-step explanation:
Hopefully this helps with understanding.
Solving Quadratic Equations using the Square Root Property
[tex]x^2+7x+10=0[/tex]
but the teacher's guide says the answer is 17i
Answer:
[tex] x = -2 [/tex] or [tex] x = -5 [/tex]
Step-by-step explanation:
You need to complete the square before you can take the square root of both sides.
[tex] x^2 + 7x + 10 = 0 [/tex]
Subtract 10 from both sides.
[tex] x^2 + 7x = -10 [/tex]
To complete the square, you need to add the square of half of the x-term coefficient to both sides.
The x-term coefficient is 7. Half of that is 7/2. Square it to get 49/4. Now we add 49/4 to both sides of the equation.
[tex] x^2 + 7x + \dfrac{49}{4} = -10 + \dfrac{49}{4} [/tex]
[tex] (x + \dfrac{7}{2})^2 = -\dfrac{40}{4} + \dfrac{49}{4} [/tex]
[tex] (x + \dfrac{7}{2})^2 = \dfrac{9}{4} [/tex]
Now we use the square root property, if
[tex] x^2 = k [/tex], then
[tex] x = \pm \sqrt{k} [/tex]
[tex] x + \dfrac{7}{2} = \pm \sqrt{\dfrac{9}{4}} [/tex]
[tex] x + \dfrac{7}{2} = \pm \dfrac{3}{2} [/tex]
[tex] x + \dfrac{7}{2} = \dfrac{3}{2} [/tex] or [tex] x + \dfrac{7}{2} = -\dfrac{3}{2} [/tex]
[tex] x = -\dfrac{4}{2} [/tex] or [tex] x = -\dfrac{10}{2} [/tex]
[tex] x = -2 [/tex] or [tex] x = -5 [/tex]
in one year dog's weigh from 64 pounds to 80 pounds . by what percentage did the dog's weght increase
Answer:
15%
Step-by-step explanation:
First, let's find how many pounds the dog's weight increased by during the year.
80 - 64 = 16
Now, knowing that the dog's weight increased by 16 pounds, we can use that to figure out the percentage of 16 out of 64 (divide them, then multiply by 100 to get a percentage).
[tex]\frac{16}{64}[/tex] • 100 = 0.25 • 100 = 25%
-2(3x-2) + 2x = -6X - 10
Answer:
[tex]x = - 3[/tex]
Step-by-step explanation:
[tex] - 2(3x - 2) + 2x = - 6x - 10[/tex]
[tex] = > - 6x - 4 + 2x = - 6x - 10[/tex]
[tex] = > - 4x - 4 = - 6x - 10[/tex]
[tex] = > - (4x + 4) = - (6x + 10)[/tex]
[tex] = > 4x + 4 = 6x + 10[/tex]
Keeping all like terms in L.H.S ,
[tex] = > 6x - 4x = 4 - 10[/tex]
[tex] = > 2x = - 6[/tex]
[tex] = > x = \frac{ - 6}{2} = - 3[/tex]
i need help with this
Answer:
the first option - 48s + 4.75
Step-by-step explanation:
3. Problem 2: Suppose a radio manufacturer has the total cost function C (x) = 43x + $ 1850 and the revenue function R (x) = $ 80x. Where "x" is the number of radios manufactured and sold. Find:
plissssssssssssss helpppp
Given that,
Total cost function, C (x) = 43x + $1850
The revenue function R (x) = $80x
To find,
The number of units that must be produced and sold to break even.
Solution,
At break even, cost = revenue
43x + $1850 = $80x
Subtract 80x from both sides.
43x + 1850 -80x = $80x -80x
1850 = 80x-43x
37x = 1850
x = 50
So, the required number of units are 50.