If you doubled an unknown number and subtract 1 and then square the answer to get 64, the unknown number is 4.5.
Let the unknown number be n.Given the following data:
Output = 64To find an unknown number:
In this exercise, you're required to solve for an unknown number while performing some arithmetic operations such as multiplication, subtraction and square.
Translating the word problem into an algebraic expression, we have;
Doubling the unknown number, we would multiply by 2:
[tex]2n[/tex]
Subtracting 1 from the above and squaring, we have:
[tex](2n-1)^2 = 64\\\\2n-1=8\\\\2n =8+1\\\\2n=9\\\\n=\frac{9}{2}[/tex]
n = 4.5
Read more: https://brainly.com/question/13282374
Luis does not know how old your grandfather Fernando is, but he does know the age of his father john is 20 years younger than him. Luis was 15 years old and was born when his father was 35 years old. Luis uncle is 3 years younger than his dad. Analyze the two equations bellow that represents the ages of the person describe. X+20=y Y-20-3=z what do each variable represents
Answer: X= John's age , Y= Fernando's age, Z = Age of Luis uncle
Step-by-step explanation:
Given: John is 20 years younger than fernando.
i.e. John' age + 20 = Fernando's age
So in the given equation "X+20=Y " , X= John's age and Y= Fernando's age.
From this , John's age: X= Y-20 (i)
Also, Luis uncle is 3 years younger than his dad( John).
Age of Luis uncle = John's age -3
=X-3
= Y-20-3 [From i]
So in the given equation Y-20-3=Z , Z = Age of Luis uncle
What is the y-intercept for -1,3
Answer:
No solution
Step-by-step explanation:
Based on the graph, which inequality is correct for a number that is to the right of -3?
A number line is shown from negative 8 to 8 at increments of 1. A circle is shown at negative 3. The entire portion of the number line to the right of negative 3 is shaded.
a
4 > −3
b
−3 > 4
c
−2 < −3
d
−3 < −6
Answer:
The inequality
[tex]4\:>\:-3[/tex]4 can is always greater than -3, so [tex]4\:>\:-3[/tex] is also correct.
Therefore, option 'a' is correct.
Step-by-step explanation:
Given the inequality
[tex]-3\:>\:4[/tex]-3 can not be greater than 4, so [tex]-3\:>\:4[/tex] is also incorrect.
Given the inequality
[tex]-2\:<\:-3[/tex]-2 can not be lesser than -3, so [tex]-2\:<\:-3[/tex] is also incorrect.
Given the inequality
[tex]-3\:<\:-6[/tex]-3 can not be lesser than -6, so [tex]-3\:<\:-6[/tex] is also incorrect.
Given the inequality
[tex]4\:>\:-3[/tex]4 can is always greater than -3, so [tex]4\:>\:-3[/tex] is also correct.
Therefore, option 'a' is correct.
4x-5y>-5
please help
its suppose to be put into point slope form y=mx+b
Answer:
Slope-intercept is a specific form of linear equations. It has the following general structure. Drum roll ...
\Large y=\maroonC{m}x+\greenE{b}y=mx+by, equals, start color #ed5fa6, m, end color #ed5fa6, x, plus, start color #0d923f, b, end color #0d923f
Here, \maroonC{m}mstart color #ed5fa6, m, end color #ed5fa6 and \greenE{b}bstart color #0d923f, b, end color #0d923f can be any two real numbers. For example, these are linear equations in slope-intercept form:
y=2x+1y=2x+1y, equals, 2, x, plus, 1
y=-3x+2.7y=−3x+2.7y, equals, minus, 3, x, plus, 2, point, 7
y=10-100xy=10−100xy, equals, 10, minus, 100, x [But this equation has x in the last term!]
On the other hand, these linear equations are not in slope-intercept form:
2x+3y=52x+3y=52, x, plus, 3, y, equals, 5
y-3=2(x-1)y−3=2(x−1)y, minus, 3, equals, 2, left parenthesis, x, minus, 1, right parenthesis
x=4y-7x=4y−7x, equals, 4, y, minus, 7
Slope-intercept is the most prominent form of linear equations. Let's dig deeper to learn why this is so.
Step-by-step explanation:
The art club, music club, and drama club at Glendale High School raised money last summer by washing cars.• The art club raised about $3,200 and charged $6 per car.• The music club earned approximately $3,800, charging $8 for each car.• The drama club took in nearly $2,900, at a cost per car of $7. About how many cars did each of the clubs wash?
Answer:
The number of car washed per club is:
The art club = 533 cars
The music club = 633 cars
The drama club = 414 cars
Step-by-step explanation:
The art club, music club, and drama club at Glendale High School raised money last summer by washing cars.•
For the art club
The art club raised about $3,200 and charged $6 per car.•
$6 = 1 car
$3200 = x
6x = 3200
x = 3200/6
x = 533.33333333 cars
Approximately = 533 cars
The music club earned approximately $3,800, charging $8 for each car
$8 = 1 car
$3800 = x
8x = 3800
x = 3800/8
x = 633.33333333 cars
Approximately = 633 cars
The drama club took in nearly $2,900, at a cost per car of $7.
$7= 1 car
$2900 = x
7x = 2900
x = 2900/7
x = 414.28571429 cars
Approximately = 414 cars
The number of car washed per club is:
The art club = 533 cars
The music club = 633 cars
The drama club = 414 cars
Nineteen more than a number is 33. What is the number? 33 n 19
12
14
16
52
Answer:
14
Step-by-step explanation:
33-19=14
Answer:
14; B
Step-by-step explanation:
You know that x + 19 = 33.
If you subtract 19 from both sides you get 14.
or you could think of it this way:
if you have 19 things and there is another person that has x amount, but all together you have 33 things/items. Then you have to subtract in order to figure out how many things the other person has.
And you can check your work by just adding 19 and 14 which will indeed give you 33.
Hope this helps you out!
Someone help, please
26 - (2c + 4) = 2(C+6) +C
what is c
Answer:
c = 2
Step-by-step explanation:
26 - (2c + 4) = 2(c+6) + c
26 - 2c + 4 = 2c + 12 + c
26 - 4 - 12 = 2c + 2c + c
10 = 5c
2 = c
At what point does the graph of the line y=2x−6 cross the y-axis?
(2, −6)
(0, 2)
(0, −6)
I don't know.
The point does the graph of the line y=2x−6 cross the y-axis will be (0, -6). Then the correct option is C.
What is a linear equation?A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.
The linear equation is given as,
y = mx + c
Where m is the slope of the line and c is the y-intercept of the line.
The equation of the line is given as,
y = 2x - 6
At the y-axis, the value of the variable 'x' becomes zero. Then we have
y = 2 (0) - 6
y = - 6
The point does the graph of the line y=2x−6 cross the y-axis will be (0, -6). Then the correct option is C.
More about the linear equation link is given below.
https://brainly.com/question/11897796
#SPJ2
Answer my math question I asked so many times I lost most of points by
Answer:
Step-by-step explanation:
Tbh I am not sure but you can use this app called Microsoft math which helps so much can you please answer my question
Make a table of ordered pairs for the equation.
y= -1/3x+1
Then plot two points to graph the equation.
It’s a 10 by 10 graph and it has 4 areas
Answer:
Graph the line using the slope and y-intercept, or two points.
Slope: -1/3
Y-Intercept: (0,1)
Jason runs at a pace of 7 miles per hour and his friend runs at a pace represented by
the equation y = 6x where y is distance in miles and x is time in hours. Who runs
faster?
Answer:
Jason runs faster then his friend.
Step-by-step explanation:
Jason's speed is represented by the equation y = 7x because he runs 7 miles in an hour. If his friend's speed is represented by y = 6x, then his friend runs a total of 6 miles in an hour.
You are going on a road trip!
You drive to your best friend's house and then get on the highway.
After 2.5 hours, you had traveled a total of 135 miles.
You can average 50 miles per hour after you leave your friend's house.
Which of these equations best shows the distance you have gone since you left your house?
Answer: total distance - 135 = 50 (hours - 2.5)
A used car has a value of $15,250 when it is purchased in 2012. The value of the car decreases at a rate of 7.5% per year. 1 Write an exponential function that models the value x of the car over y years. 2 To the nearest cent, what will be the value of the car after eight years?
the given P=15250
r=7.5/100=0.075
t=x
y = 15250*(1 - 0.075)^x
after 8 years we would have
x = 8
y = 15250*(1 - 0.075)^8
y = $8,173.42
Answer: after 8 years the value of the car would be $8,173.42
need an answer asap please
Answer:
Rotated shape in the image
Step-by-step explanation:
Counterclockwise Rotation About the Origin
Given the point (x,y), the counterclockwise rotation about the origin is the point (-y,x), i.e. the coordinates are switched and the y-coordinate is opposed.
The points of the quadrilateral are T(1,-2), S(5,-3), R(5,-4), U(2,-4). The rotated points are:
T'(2,1), S'(3,5), R'(4,5), U'(4,2).
The rotated shape is shown in the image below.
I need #1 please help!!
We are given that ∠E and ∠B are right angles and C is the midpoint of AD.
Angle BCA is congruent to Angle DCE (Vertical Angles are Congruent) and Triangle ABC is congruent to DEC (SAS (side-angle-side)).Vertical angles are angles across from each other when two lines intersect. Vertical angles are always congruent. ACB and DEC are a pair of vertical angles, and BCD and ACE are a pair of vertical angles.Side-Angle-Side (SAS) is a congruence shortcut for triangles. When two pairs of congruent sides an one pair of congruent angles (between the sides) are in two triangles, we can assume the triangles are congruent.are these Equivalent expressions 4(2 + 3) and 4(2) + 4(3)
Answer:
Yes, they are equivalent.
Step-by-step explanation:
To see if they're equivalent, you have to solve them. Start with the first one. Steps are below.Apply the distributed property: 8 + 128 + 12 = 20For second expression:
4(2) = 4 × 2 = 84(3) = 4 × 3 = 12Put them together: 8 + 128 + 12 = 20Making a conclusion:
Because they both have the same answer, they are equivalent expressions.
I hope this helps!
Answer:
40
Step-by-step explanation:
so its simple since the 4(2+3) are in brackets u would put multiply the number in the brakcets for example 2+3 is 5 and that 4 at the side you would multiply it by 4 and you get 20 but then the 4(2) that would just be 4x2 becuase those brackets are singnifieing that its like a multipication problem same with the 4(3) its the same as 4x3 put it all together and you get 40
Is this a Right scalene, right isosceles, Obtuse Scalene, acute isosceles?
Answer:
right scalene
Step-by-step explanation:
there is a 90 degree angle, a right angle
also, none of the three angles/sides are congruent (the same)
Which expression is equivalent to 6(8−n)−8 ?
Answer:
48-6n-8
40-6n
Step-by-step explanation:
Answer:
40-6n
Step-by-step explanation:
if on imagine math it is 40-6n
Write an equation of the line below.
HELP PLEASE!!
How do I rewrite this problem?
Answer:
3 1/4
Step-by-step explanation:
HOPE THIS HELPED!!!!!! <3
(√3+5)(√3-1) How do u solve it?
Answer:
4.93
Step-by-step explanation:
Use calculator
Mark me as brainliest
Answer:
[tex]4\sqrt3-2[/tex]
Step-by-step explanation:
[tex](\sqrt3+5)(\sqrt3-1)\\\\3+5\sqrt3-\sqrt3-5\\\\4\sqrt3-2[/tex]
Hope this helps, please award brainliest! Have a nice night.
Isabella has an allowance of $15.00 per week. you are in bowling league that costs $6.50 for each week, and you save at least $5.00 each week. write and solve an inequality to show how you have left to spend each week.
what's the answer to this question?
Answer:
6.5+5=11.5-15
3,5
Step-by-step explanation:
Add: (7-5i) (-10+2i)
Answer:
-10i^(2) + 64i - 70
If you had $10,000 dollars to spend what would you spend it on? Would you invest it or would you save it?
Answer: Save it
Step-by-step explanation:
1:rosalie is refinishing her basement. 4m by 6m are the dimentions of rosalies rectangular basement.how much tile would she need to cover the floor? 2: if the hight of the basment is 7m,how much wall area is there to paint? first answer is 24m
Answer:
24m tile for the floor and the 28+28+42+42=140m^2
Step-by-step explanation:
Trust me or else YOU be Major SUS
Also Mark me Brainiest please
what segment is the diameter
Step-by-step explanation:
The one straight across
Someone plz help me Idk what to do idk which answer It is I’ll give brainlist and points
Answer:
b (-3/5)
Step-by-step explanation:
First, distribute the -2 on the left side
-2x-2=3x+1
now, add 2 to both sides
-2x=3x+3
subtract 3x from both sides
-5x=3
divide both sides by -5
x=-3/5
HTH :)
Answer:
It's b)
Step-by-step explanation:
-2 (x + 1) = 3x + 1
-2x -2 = 3x + 1
-3x +2
-5x = 3
-5x/-5 = x
3/-5 = -0.6
x = - 0.6 (-3/5 as a fraction)
:)
9 ft=_____ in Do y'all know the answer to this plz help me out plz and thanks
Answer:
108
Step-by-step explanation:
As 1 foot = 12 inches, 9 foot = 12*9 = 108.
Hope this helps! :)
Answer:
The answer is 108. 1 foot equals 12 inches. So, you just need to multiply 9 by 12. 9 x 12 = 108.
Point Q'Q
′
Q, prime is the image of Q(0,6)Q(0,6)Q, left parenthesis, 0, comma, 6, right parenthesis under the translation (x,y)\to(x+7,y-5)(x,y)→(x+7,y−5)left parenthesis, x, comma, y, right parenthesis, \to, left parenthesis, x, plus, 7, comma, y, minus, 5, right parenthesis
\
Answer:
9,2
Step-by-step explanation:
i got it on khan
Answer:
7,1
Step-by-step explanation:
let's add 7 to x
0+7=7
let's subtract 5 from y
6-5=1
Q' is (7,1)