217 pens and 131 pencils together cost rupees 913 while 131 pens and 217 pencils cost rupees 827 find the cost of one pen and one pencil
Answers
Answer:
$5
Step-by-step explanation:
Just use simultaneous equations to solve this problem.
Let cost of pens = x and cost of pencils = y:
217 x + 131 y = 913
131x + 217y = 827
Solving these 2 equations you get: x = 2 and y = 3
Hence, cost of one pen and one pencil = 2 + 3 = 5 rupees
Answer:
5
Step-by-step explanation:
Please mark as brainliest
Related Questions
A cyclist cycles a distance of 44 miles in a time of 4 hours.
What is her average speed?
Answers
Answer:
11 miles an hour
Step-by-step explanation:
44 miles divided by 4 hours would equal 11 miles in one hour, meaning her average speed would be 11 miles an hour
Answer:
The average speed is 11
Step-by-step explanation:
You would have 44 on top and 4 on the bottom(44/4)
then you would divide the 4 by four and the 44 by four to get 11 miles an hour.
10. If ABCD is a parallelogram, find m
Answers
Answer: The angle C measures 120 degrees.
Step-by-step explanation:
For a polygon of n side, the sum of internal angle, in degrees is given by:
S = (n - 2) x 180
Parallelogram
4 sides, so
S = ( 4 - 2) * 180 = 360
Two pair of equal angles
B and D measure 60
A and C measure x. so
2ₓ + 2 * 60 = 360
2× = 240
× = 240/2
× = 120
The angle C measures 120 degrees
Hope this helps! :)
AB is the mid segment of the isosceles trapezoid WXYZ solve for the length of AB
Please helppppp
Answers
Answer:
8 units
Step-by-step explanation:
2(3x-3)=4x-1
6x-6=4x-1
2x=5
x=2.5
3x-3
3(2.5)-3
4.5
Find the difference.-3.2 - (-4) *
1 point
7.2
-7.2
0.8
-0.8
Answers
Answer:
do you like harry styles
Step-by-step explanation:
pog champ
The numerator of a fraction is 2 less than the denominator. A new fraction can be formed by adding 5 to the denominator and doubling the numerator. The product of the original fraction and the reciprocal of the new fraction is 1/4. What is the original fraction?
Answers
Answer:
[tex]\frac{6}{5}[/tex]
Step-by-step explanation:
let the denominator of the original fraction be x, then
[tex]\frac{x-2}{x}[/tex] ← original fraction
Then
[tex]\frac{2(x-2)}{x+5}[/tex] ← new fraction
The product of original and reciprocal of new is
[tex]\frac{x-2}{x}[/tex] × [tex]\frac{x+5}{2(x-2)}[/tex] ← cancel (x - 2)
= [tex]\frac{x+5}{2x}[/tex] = [tex]\frac{1}{4}[/tex] ( cross- multiply )
4(x + 5) = 2x
4x + 20 = 2x ( subtract 2x from both sides )
2x + 20 = 0 ( subtract 20 from both sides )
2x = - 20 ( divide both sides by 2 )
x = - 10
Then original fraction
[tex]\frac{x-2}{x}[/tex] = [tex]\frac{-12}{-10}[/tex] = [tex]\frac{6}{5}[/tex]
The total cost of these 2 pens is 60p.
Work out the total cost of 5 of these pens.
Give your answer in pounds.
Answers
To find the cost of one pen, do 60/2
So 30p/ pen
Just multiply this value by 5 :)
30 x 5= 150
Answer:
£1.50
Step-by-step explanation:
If two pens equal 60p
do 2 x 2 = 4
4 pens equal £1.20
to get 1 pen do 60p divided by 2
which equals 30p
now add £1.20 and 30p
Simplify the question above
Answers
Answer:
[tex]1 + \frac{3}{x} [/tex]
Step-by-step explanation:
1) Rewrite x² - 9 in the form a² - b² where, a = x and b = 3.
[tex] \frac{ {x}^{2} - {3}^{2} }{ {x}^{2} - 3x} [/tex]
2) use difference of squares: a² - b² = ( a + b ) (a - b).
[tex] \frac{(x + 3)(x - 3)}{ {x}^{2} - 3x} [/tex]
3) Factor out the common term x.
[tex] \frac{(x + 3)(x - 3)}{ x(x - 3)} [/tex]
4) Cancle out x - 3 .
[tex] \frac{x + 3}{x} [/tex]
5) Simplify.
[tex]1 + \frac{3}{x} [/tex]
Therefor, the answer is 1 + 3/x.
Answer:
1 + 3 ÷ x
Step-by-step explanation:
Just doing my streak. All credit goes to the person who answered first
find the sine and cosine of angles A and B in the figure
Answers
cosA = 3/5
sinB = 3/5
cosB = 4/5
Which graph below represents exponential decay
Answers
Question: Lisa and her brother are going to a hockey game on Saturday. The game starts at 4:45 P.M. It takes 30 minutes to drive to the hockey rink, and they want to get there 30 minutes before the game starts to get good seats. What is the latest time Lisa and her friends can leave for the game?
Include A.M. or P.M. in your answer (for example, 11:58 A.M.
Will give Brainilest !! Plz answer!
Answers
Answer: 3:45 pm
Step-by-step explanation:
If it takes 30 minutes to get there and 30 minutes to be early. Minus 1 hour from 4:45 pm and you get 3:45 pm
Answer:
3:35 P.M.
Step-by-step explanation:
It is exactly 60 minutes before 4:45 P.M., the latest time they can leave to fulfill all her requirements.
The measures of the exterior angles of a heptagon are xº, 2x°, 4x°, 6x°, 8x°, 9x°
and 10x°. Solve for x.
Answers
Answer:
the sum of exterior angle of a polygon is always 360 degree.
therefore,
xº+ 2x°+ 4x°+ 6x°+ 8x°+ 9x° +10x° = 360°
40x = 360°
x = 360/40 = 9
x = 9
The sum of the exterior angles of a polygon is 360 degrees, so the value of x is 9
The exterior angles of the polygon are given as:
xº, 2x°, 4x°, 6x°, 8x°, 9x° and 10x°
The exterior angles of a polygon add up to 360 degrees.
So, we have:
[tex]x\º+ 2x\°+ 4x\°+ 6x\°+ 8x\°+ 9x\° +10x\° = 360\°[/tex]
Evaluate like terms
[tex]40x\° = 360\°[/tex]
Divide both sides of the equation by 40
[tex]x\° = \frac{360\°}{40}[/tex]
Divide 360 by 40
[tex]x\° = 9[/tex]
Rewrite as:
[tex]x = 9\°[/tex]
Hence, the value of x is 9
Read more about polygons at:
https://brainly.com/question/7079195
The angle measurements in the diagram are represented by the following expressions.
A = 8x+ 78°
B = 2x + 114
B=
Answers
1) 8x + 78 = 2x + 114
2) 8x - 2x = 114 - 78
3) 6x = 36
4) 6x / 6 = 36 / 6
5) x = 6
Now we can plug in x to equation b
1) 2(6) +114
2) angle b = 126
hope this helps :)
Answer:
126
Step-by-step explanation:
Khan is never wrong :3
Part B: What can be said of an individual with a body temperature of
98.4°F? Justify your answer.
I need help ASAP
Answers
please help! Simplify the polonomial!
Answers
Answer:
Step-by-step explanation:
(2[tex]x^{2}[/tex]+3)(x+4)
2[tex]x^{3}[/tex]+8[tex]x^{2}[/tex]+3x+12
Explain the algebra 5a - 9a - (-2a) =
Answers
Hello!
5a - 9a - (-2a) =
= 5a - 9a + 2a =
= -4a + 2a =
= -2a
Good luck! :)
A family rented a car that cost $45 per day plus $0.23 per mile. If the family rented the car for 7 days and paid $395.50 altogether, how many miles did they drive?
Answers
Answer:
350 miles
Step-by-step explanation:
$45 ×7=315
$395.50-$315=80.50
$80.50÷$0.23=350 miles
Need help writing this as an decimal
Answers
Answer:
0.75
Step-by-step explanation:
3/4 is also 0.75
1/4 = 0.25
0.25*3 = 0.75
HELP ME PLEASE!! I DON’T KNOW WHAT I’M DOING
Answers
41u+6
Sorry I don't really know anything about this subject.
Practice 4 Find the measure of
Answers
Answer:
113
Step-by-step explanation:
53 is one of the angles in the triangle
Then put 60+53+y=180 you get y=67
x+y=180 you get x=113
factor the expression pls! asap 2x - 10
Answers
Answer: 2(x-5)
Step-by-step explanation:
Let's start with the given equation
2x-5
Now let's divide 2 out of the 2x and -10
2(x-5)
Least Value {15, 12, 21, 18, 25, 11, 17, 19, 20}
Answers
Answer:
11
Step-by-step explanation:
The number with the last value in this data set is 11. All the other numbers are greater than it in terms of numerical value. Imagine if all the numbers were represented through pennies. 11 would have the least amount of pennies.
Could someone please answer this question for me? (7x+1)+(−8x+2) This answer needs to be simplified. Thanks!
Answers
Answer:
-x + 3
Step-by-step explanation:
(7x+1)+(−8x+2)
7x + -8x + 1 + 2
-x + 3
please help with all 3 of those please
Answers
Answer: 1. x = 32, 2. x = 16, 3. x = 77
Step-by-step explanation: All of these angles are 90 degree angles, therefore by subtracting the known term from 90, you are able to find the value of x. I hope that this helps :)
As shown in the diagram below, the radius of a cone is 2.5 cm and its slant height is 6.5 cm
Answers
Answer:
multiple but if that dont work ion know what to tell you
Find the area of polygon, A= how many square https://homework.russianschool.com/resource?key=6257i8hmsgyj
That is the picture
Answers
Answer:
POINT GRIND XD
Step-by-step explanation:
This does not make sense to me please explain and answer. will give 30 points and brainliest!!! PLEASE HELP ME!!
Answers
Answer:
C = 39
Step-by-step explanation:
From the question given above, the following data were obtained:
A = 2x + 108
B = x + 33
C =?
Next, we shall obtain an expression for C. This can be obtained as follow:
A + B + C = 180 (sum of angles in a triangle)
2x + 108 + x + 33 + C = 180
2x + x + 108 + 33 + C = 180
3x + 141 + C = 180
Make C the subject by rearranging
C = 180 – 141 – 3x
C = 39 – 3x
Next, we shall determine the value of x. This can be obtained as follow:
A = 2x + 108
B = x + 33
C = 39 – 3x
A + B + C = 180
2x + 108 + x + 33 + 39 – 3x = 180
2x + x – 3x + 108 + 33 + 39 = 180
3x – 3x + 180 = 180
3x – 3x = 180 – 180
3x – 3x = 0
x(3 – 3) = 0
x(0) = 0
x = 0
Finally, we shall determine C. This can be obtained as follow:
C = 39 – 3x
x = 0
C = 39 – 3(0)
C = 39 – 0
C = 39
How many milliliters are equal to 4.593 liters?
Answers
Answer:
4,993 milliliters are in 4.593 liters
Step-by-step explanation:
Plz mark as brainliest if correct! Have a nice day!!!
Answer:
4.593 millimeters
Step-by-step explanation:
is the same
What is the solution to the equation 9(x − 2) = 27? (1 point) x = 2.5 x = 0.5 x = −0.5 x = 3.5
Answers
Answer:
x = 5
Step-by-step explanation:
9(x - 2) = 27
9x - 18 = 27
+18 +18
9x = 45
/9 /9
x = 5
PLEAS HELP ASAP SOLVE BOTH PROBLEMS IM GIVING 80 POINTS! NO SPAM
answer format: just say a, b, c, or d for both questions; no explanation needed.
question 1:Which of the following is a pair of equivalent radical expressions?
A. √45 and 3√15
B. √75 and 3√5
C. √54 and 9√6
D. √180 and 3√20
Question 2: image attached.
Answers
Answer:
C
Step-by-step explanation:
Answer: C for the first one and B for the second one
Step-by-step explanation:
hope it helps you
The radii of two concentric circles are 9cm and 6cm respectively. Find the area of the space between the two circles.
Answers
Answer:
3
Step-by-step explanation:
Big one= pi(9)^2=254.34
Small one= pi(6)^2=113.04
Now minus small one from big one
254.34-113.04=141.3 cm^2
So your answer is 141.3 cm^2