Answer:
Original number is 86
Step-by-step explanation:
Original: 10x + y
Double reversed: 2(10y + x)
Constraints:
x + y = 14 ===> x = 14 - y
2(10y + x) + 10x + y = 222 ===> 21y + 12x = 222
Substitution to find y:
21y + 12x = 222
21y + 12(14 - y) = 222
21y + 168 - 12y = 222
9y + 168 = 222
9y = 54
y = 6
Substitution to find x:
x = 14 - y
x = 14 - 6
x = 8
Original: 10x + y
10(8) + (6)
80 + 6
86
a package of 5 pairs of insulated socks cost $34.95. what is the unit price of the pair of socks?
Answer:$6.99
Step-by-step explanation:
DO
$34.95/5=6.99
Answer:
$6.99
Step-by-step explanation:
you have to divide the 2 numbers above
Write the equation of a line perpendicular to 5x - 7y =-6 that passes through the point (-5,6)
9514 1404 393
Answer:
7x +5y = -5
Step-by-step explanation:
You can find the perpendicular line by swapping the x- and y-coefficients, and negating one of them. The new constant can be found by using the given point.
7x +5y = 7(-5) +5(6) = -5
The perpendicular line through (-5, 6) is ...
7x +5y = -5
Álvaro y Daniela participaron en un juego por Internet. Álvaro se encontraba en Panamá y Daniela en Portugal. Álvaro comentó que el juego empezó un lunes a las 4:00 a. m. De Panamá y Daniela dijo que el juego terminó a las 4:00 a. m. De portugal, pero del martes.
La hora en Portugal está a 6hrs adelantada que la de Panamá.
¿cuántas horas duró el juego?
Answer: I don’t speak your languag ;-;
Step-by-step explanation:
Need help ASAP!!
What slope would make the lines perpendicular?
Y=1/2x+8
Y=[?]x+2
Answer:
-2
Step-by-step explanation:
Gradient of perpendicular lines is -1
so divide -1 by ½
u get -2
A box is formed by cutting squares from the corners of a rectangular piece of cardboard. The volume of the box is found by the equation V(h)=h(16-2h)(10-2h) where his a side of the square cutout. Which is the reasonable domain for this situation?
a. (0,5)
b. (0,10)
c. (0,8)
d. (0,infinity)
Answer:
A. (0, 5)
Step-by-step explanation:
Physically speaking, the volume of the box and the side of the square cutout are positive value. So that the following inequations must be satisfied:
[tex]h > 0[/tex] (1)
[tex]16-2\cdot h >0[/tex] (2)
[tex]10-2\cdot h > 0[/tex] (3)
From (1), (2), (3) we find that:
(1):
[tex]h > 0[/tex]
(2):
[tex]16 > 2\cdot h[/tex]
[tex]8 > h[/tex]
[tex]h < 8[/tex]
(3):
[tex]10 > 2\cdot h[/tex]
[tex]5 > h[/tex]
[tex]h < 5[/tex]
We see that equation above is the multiplication of a first grade monomial and two first grade binomials, which means that:
[tex]h > 0 \,\land\,h < 5\,\land\,h< 8[/tex]
[tex]0< h < 5[/tex]
In other words, the reasonable domain for this situation is A.
if i have 1000 dollars and lose 1000 dollars how much do i have left 100 points
The mathematical answer would happen to be... 0
Answer:
0
Step-by-step explanation:
Veronica's family is getting ready for
a huge go-kart race. They only brought
15 gallons of gasoline, though. If each
cart needs 2 and 1/3 gallons of gas, how many
go-karts can be filled for the race?
Answer:
6.5
Step-by-step explanation:
15gallons ÷ 2.3 gallons per car = 6.5 cars so filled would be 6
Invalid data.
23. 6) Word Problem:
Bill makes $30.00 per day. He makes twice as much as Jack makes before
Jacks's salary was doubled. How much does Jack make now?
24. 7) A purchase of $0.73 is made by a customer. The customer hands you a $10.00 bill.
How much change should you give back?
25. 8) A customer buys 3 items at $0.25 each, 2 items at $0.55 each, and 1 other item for
$0.15. Assuming the tax rate on a dollar is 2%, how much will the total transaction be?
26. 9) How many nickels are there in a $2.00 roll?
Answer:
23.6) $30.00
24.7) $9.27
25.8) I'm not sure
26.9) 40 nickles
Step-by-step explanation:
write an equation in point slope form for the line that has a slope 1/3 and passes through (-2,8)
Answer:
y - 8 = 1/3 (x + 2)
Step-by-step explanation:
The equation y - 8 = 1/3 ( x + 2) has a slope form for the line that has a slope 1/3 and passes through (-2,8). The answer to the question is y - 8 = 1/3 (x + 2).
Hope this helps!
The equation of the line will be written as to y - 8 = 1/3 (x + 2).
What is an equation of the line?
An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.
The general form of the equation of the line:-
y = mx + c
m = slope
c = y-intercept
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given that the line has a slope 1/3 and passes through (-2,8). The equation of the line will be,
y - y₁ = m(x - x₁)
y - 8) = (1/3)(x + 2 )
Therefore, the equation of the line is equal to y - 8 = 1/3 (x + 2).
To know more about an equation of the line follow
https://brainly.com/question/18831322
#SPJ5
5+5 100 points please help I'm in 8th grade and my teacher wants me to answer this
write the equation of the line in standard form passing through (2,-4) with a slope of -7
Answer:
7x+Y=-2
Step-by-step explanation:
(y-y1)=m(x-x1)
(Y+4)=-7(x-2)
Y+4=-7x+2
Y+7x=2-4
7x+Y=-2
PLEASE I NEED HELPP !!
Which situation leads to a unit cost of $8 per softball ticket?
A. $6 paid for 2 softball tickets
B. $6 paid for 6 softball tickets
C. 6 softball tickets for $24
D. 9 softball tickets for $72
Answer:
D 9 softball tickets for $72
Step-by-step explanation:
72/9=8
Answer:
The answer is D.
Step-by-step explanation:
You divide 72 by 9. Hope this helps!!! Please mark me brainliest and have a good rest of your day!!!
Find the measure of angle J
Answer:
Step-by-step explanation:
Equals 23x
I WILL MARK BRAINIEST
Answer:
x=20
4=140
1=40
Step-by-step explanation:
7x=2×+100
5×=100
×=20
4=7(20)=140
1=180-140=40
Answer:
x=20
m<4=140
m<1=40
Step-by-step explanation:
to figure out angle 1 just subtract 140 from 180
Please help i don’t really understand it
Answer:
vvvvvvvvvv
Step-by-step explanation:
~ Is a sign for similarity. This essentially means you can do rigid transformations to a shape to get the exact shape of another. You would need proportional sides and congruent angles for this to work. The shapes are not proportional so it is not similar.
#13 Easton is planning on buying a new pair of cowboy boots. When he
went to Eastern Outfitters last week they costs $60 on the black Friday
sale. This week, they aren't on sale anymore and they cost $85. What is the
percent of change on the boots? *
O 25%
O 45%
O 55%
75%
Jeff has recorded the cost of insurance premiums on his car for a particular insurance company.
Daniel pays $1,150 per year for insurance premiums on his car. Whose unit rate is lower in terms of cost per year, and what is the rate?
Answer:
For 1 year Jeff pays $1200.
For 6 years he pays 7200 / 6 = 1200 per year.
For 9 years he pays 10800 / 9 = 1200 per year.
Jeff's unit rate is $1,200 per year.
Daniel pays $1,150 per year.
150 is less than 1200, so the answer would be:
A. Daniel's unit rate is lower. It is $1,150 per year
I needs help, I’ll give brainliest !!
Answer:
(4,-5)
Step-by-step explanation:
A right triangle is shown below.
What is the value of x rounded to the nearest ten, if necessary?
Answer:
hmmmmm.... i'm only in 7th grade and to be honest i don't really know but i'll try on this. am i going to be doing this this year?
So from my logic in my empty brain: 4.2?
Step-by-step explanation:
Because i flipped the pic around and so ,
First i got "x" in my brain and turned it into 9 from 8.5
then 9 divided by 8.5
wait a sec i just realized i made the most dumb mistake by dividing welp i'll just put out what i just fixed in my head and yea here ya go.
B+ for effort ?
Z- for iq?! .-.?
Shannon is paid £1150 a month after deductions.
What is her net annual salary? (A year = 12 months)
Answer:
I think that answer is 13800
Step-by-step explanation:
Write the first four terms of the sequence defined by the given rule: f(n)=n+4
Answer:
5, 6, 7, 8
Step-by-step explanation:
f(n) = n + 4
f(1) = 1 + 4 = 5
f(2) = 2 + 4 = 6
f(3) = 3 + 4 = 7
f(4) = 4 + 4 = 8
Five students in Mr. Roberts' class are gathering donations for a party. The amount each student has collected is below. Student Amount Stanley $25.24 Rebecca $24.06 Mary $25.27 Rolly $24.14 Sheryl $24.60 Use clustering around an average to estimate the total amount the students collected. A. $125.00 B. $275.00 C. $50.00 D. $230.00
Answer:
The answer should be A. $125.00
Step-by-step explanation:
I rounded and added them jajaja.
A bag contains 150 marbles. Some are blue, and the rest are white. There are 21 blue marbles for every 4 white marbles. . How many blue marbles are in the bag
Determining a Value of an Expression
Evaluate the expression
12 = 3y + y2y = 4 ) for y=3
f
Step-by-step explanation:
1/1=56÷£×€×^×/÷/€×€÷£÷88÷
Write the slope-intercept form of the equation of each line. Identify the slopes y-intercept
Answer:
m= 2
b= -2
-2x+2
Step-by-step explanation:
Hope that helps!
Which is the better buy?
3,805 pounds of cement for $266.35 or
5 tons of cement for $1,400.00
Answer:
3,805 pounds of cement for $266.35 is a better buy
Step-by-step explanation:
3,805 pounds of cement for $266.35
266.35 : 3,805= 0.07
check your work: 3,805 x 0.07 = 266.35
so for the first offer you will be paying $0.07 per pound
5 tons of cement for $1,400.00
1 ton = 2000 pounds
5 tons = 10000 pounds
1,400.00 : 10000 = 0.14
for the second offer you will be paying $0.14 per pound of cement. 3,805 pounds of cement for $266.35 is a better buy because you will be paying half of the price for each pound.
hope this helps!
Can you help with the 2 that are not correct?
Answer:
MPO=MNO
NPO=MNP
Step-by-step explanation:
MPO=MNO because MPO opposite angles of a parallelogram are congruent.
MNO is the top right angle of the parallelogram and so the opposite side of that is MPO or OPN whatever way you want to write it.
NPO=MNP because they are alternate interior angles. (If you don't understand what that means I can come back and explain it)
PLEASE HELP ASAP I WILL GIVE BRAILY AND 25 POINTS... write an expression equivalent to 4x + 12 using the distributive property
Answer:4x + 12 = 2 ( 2x + 6)
Step-by-step explanation:
Use these methods to normalize the following group of data:
200, 300, 400, 600, 1000
a) min-max normalization by setting min = 0 and max = 1
b) z-score normalization
c) normalization by decimal scaling
Step-by-step explanation:
b is the answer , z-score normalization
Normalization is applied to data values in other to ensure that the data scales well, such that data values conforms to a certain range. The output of the various normalization techniques are given below ;
Given the data:
200, 300, 400, 600, 10001.)
Min - Max normalization :
[tex]\frac{value - min}{max - min} [/tex] Min = minimum = 200Max = maximum = 1000Value = 200 :
[tex]\frac{200 - 200}{1000 - 200} = 0[/tex]
Value = 300 :
[tex]\frac{300 - 200}{1000 - 200} = 0.125[/tex]
Value = 400 :
[tex]\frac{400 - 200}{1000 - 200} = 0.25[/tex]
Value = 600 :
[tex]\frac{600 - 200}{1000 - 200} = 0.5[/tex]
Value = 1000 :
[tex]\frac{1000 - 200}{1000 - 200} = 1[/tex]
Normalized values = (0, 0.125, 0.25, 0.5, 1)
2.)
Zscore normalization :
[tex]\frac{value - μ}{σ} [/tex]Using a calculator :
Mean, μ = 500Standard deviation = 316.227Value = 200 :
[tex]\frac{200 - 500}{316.227} = -0.949[/tex]
Value = 300 :
[tex]\frac{300 - 500}{316.227} = -0.632[/tex]
Value = 400 :
[tex]\frac{400 - 500}{316.227} = -0.316[/tex]
Value = 600 :
[tex]\frac{600 - 500}{316.227} = 0.316[/tex]
Value = 1000 :
[tex]\frac{1000 - 500}{316.227} = 1.581[/tex]
Normalized values = (-0.949, -0.632, -0.316, 0.316, 1.581)
3.)
Decimal Scaling :
Maximum value = 1000Hence, we can divide our values by 10000200 / 10000 = 0.02
300/1000 = 0.03
400/1000 = 0.04
600/1000 = 0.06
1000/1000 = 0.1
Hence, the Normalized values (0.02, 0.03, 0.04, 0.06, 0.1)
Learn more : https://brainly.com/question/19132215
Look at the subtraction expression below.
Which number line models this expression?
A.
B.
C.
D.
Answer:
A
Step-by-step explanation:
I took the quiz
Answer:
The Answer IS {A} just did the test!!
Step-by-step explanation:
