Given :
A shopkeeper earns a profit of Rs. 1 by selling a pencil and a loss of 20 paisa by selling an eraser.
To Find :
In a given day he had a loss of Rs. 10. On this day, he sold 35 pencils. How many erasers were sold on this day.
Solution :
Money earned by selling 35 pencils.
P = 35 × 1 = Rs 35 .
Now, it is given that he had a loss of Rs 10 .
Therefore, amount of loss done by money is :
E = 35 + 10
E = Rs 45
Now, number of erase sold :
[tex]n = \dfrac{E}{0.2}\\\\n = \dfrac{45}{0.2}\\\\n = 225\ erasers[/tex]
Hence, this is the required solution.
Multiply. Express your answer in simplest form. 2/3 x 5/6. Show work.
Step-by-step explanation:
[tex] \frac{2}{3} \times \frac{5}{6} \\ = \frac{10}{18} \\ = \frac{5}{9} [/tex]
[tex]\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘[/tex]
Amanda bought 2 CDs that were each the same price. Including sales tax, she paid a total of $29.80. Each CD had a tax of $1.10 . What was the price of each CD before tax?
brainliest
Answer:
13.80 there you go buddy
Jordan is baking brownies and chooses to use a round pan. The diameter of the pan is 12 inches. What is the area of the pan? Round to the nearest tenth.
find the area of a circle with a radius of 5 ft
Answer:
2.5 feet bud hope it helps
Find the cosine of 300°. Round your answer to the nearest hundredth, if necessary.
-0.87
-0.5
0.5
0.87
Answer:
option C . 0.5
Step-by-step explanation:
[tex]cos 300 = cos(2\pi - 300 ) = cos( 360 - 300) = cos 60 = 0.5[/tex]
Using the formula :
[tex]cos\theta = cos (2\pi - \theta )[/tex]
C= 0.5
Step-by-step explanation:
Solve the triangle for all missing sides and angles
Answer:
a=9
c= 17.5
angles: a =31, b =59, c =90
Step-by-step explanation:
a:
tan (31) = a/15 *cross multiply*
a = 15 (tan (31))
a = 9
c:
*use pythagorean theorum*
9^2 + 15^2 = c^2
81 + 225 = c^2
306 = c^2
17.5 = c
Answer:
B = 59
a = 9.01
c = 17.49
Step-by-step explanation:
Angle B
180 - 90 - 31 = 59
c
The sine of an angle is equal to the ratio of the opposite side to the hypotenuse.
sin(B)=opp/hyp
sin(B)=15/c
sin(59)=15/c
c=15/sin(59)
c=17.49
Find the last side of the triangle using the Pythagorean theorem.
[tex]a^{2} +b^{2} =c^{2} \\a^{2} +15^{2} =17.49^{2} \\\\a^{2} =17.49^{2} -15^{2}\\a=9.01[/tex]
HELP! ILL MARK YOU BRAINLY OR WHATEVER ITS CALLED
Answer:
For #7, the answer is 30.3 yd
For #8, the answer is 32.34 in
For #9, the answer is 56.26 ft
Explanation: The formula for an area of a parallelogram is ( A=bh)
Hope that helped!!
NO LINKS!!! WILL REPORT!!!! NEED HELP ASAP
Answer:
Step-by-step explanation:
take 45 degree as reference angle
using cos rule
cos 45=adjacent/hypotenuse
1/[tex]\sqrt{2}[/tex]=x/4(do cross multiplication)
x[tex]\sqrt{2[/tex]=4
x=4/[tex]\sqrt{2}[/tex]
x=2[tex]\sqrt{2}[/tex]
There are 5 questions on a multiple choice exam, each with five possible answers. If a student guesses on all five questions, what is the probability the student gets two questions correct? Express your answer as a percent rounded to the nearest tenth.
3.8%
18.7%
20.5%
16.9%
Answer:
[tex]20.5\%[/tex]
Step-by-step explanation:
Let's write out a case for two specific questions being correct and the rest being incorrect:
[tex]\frac{1}{5}\cdot \frac{1}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}[/tex],
The [tex]\frac{1}{5}[/tex] represents the chances of getting the question correct, as there are 5 answers and 1 correct answer choice.
The [tex]\frac{4}{5}[/tex] represents the chances of getting the question incorrect, as there are 5 answers and 4 incorrect answer choices.
The equation above does show the student getting two answers correct and three answers incorrect, but it only shows one possible case of doing so.
We can choose any two of the five questions to be the ones the student gets correct. Therefore, we need to multiply this equation by the number ways we can choose 2 from 5 (order doesn't matter): [tex]\binom{5}{2}=10[/tex].
Therefore, the probability the student gets two questions correct is:
[tex]\frac{1}{5}\cdot \frac{1}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot \binom{5}{2}=\frac{1}{5}\cdot \frac{1}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot \frac{4}{5}\cdot 10=0.2048\approx \boxed{20.5\%}[/tex]
If /|| m, what is the value of X?
Answer:
43° is correct answer
Step-by-step explanation:
Like me
Answer:
43
Step-by-step explanation:
[tex]x \degree = 43 \degree \\ (corresponding \: \angle s) \\ \therefore \: x = 43 [/tex]
One-third of the total number of marbles in a jar are red and blue. There are 18 red marbles and 16 blue marbles. How many marbles are in the jar?
Answer:
There are 102 marbles in the jar
Step-by-step explanation:
16+18 = 34
34 = 1/3
3×34 = total marbles
3×34 = 102
Solve the expression for a=12 b=6 and c=3
Answer:
36
Step-by-step explanation:
I did the work on my notebook
Answer:
Step-by-step explanation:
c(a+b)-bc
=3(12+6)-6*3
=36+18-18(plus 18 and minus 18 gets cancel)
=36
The formula for the surface area of a rectangular prism with a square base is SA = 2s2 + 4sh. What is the surface area of this rectangular prism if s = 3 and h = 6?
Answer:
90
Step-by-step explanation:
Step 1: Given data
Side of the rectangular prism (s): 3
Height of the rectangular prism (h): 6
Step 2: Calculate the surface area (SA) of the base
We will use the following expression, replacing the values for s and h.
SA = 2 × s² + 4 × s × h
SA = 2 × 3² + 4 × 3 × 6 = 90
The units are not provided but the SA should have the same units as s and h, but raised to the power of 2.
Javier is saving for a new pair of shoes that costs $59.99. So far, he has saved $22.50. How much more does he need to save? Show work.
Answer:
hi there user!
The answer is he needs to save $37.49 more
Step-by-step explanation:
59.99 - 22.50 = 37.49
find the volume of the following prism..helpppp pleasee!!!
Answer:
Step-by-step explanation :The volume V of a prism is V = Bh, where B is the area of the base, h is the height of the prism.To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.
Answer:
volume of the prism
(20×12×10)-(8×8×20)
2400-1280
1120 cm³
Would you rather (A) Run for 12 minutes at least 10 miles and hour; ... OR ... (B) 20 minutes at 6 miles per hour?
I am doing my homework and am completely stumped on this one... help please?
Describe the symmetry of the figure. Identify lines of symmetry, if any. Find the angle and the order of any rotational symmetry.
Describe the symmetry of the figure. Identify lines of symmetry, if any. Find the angle and the order of any rotational symmetry.
Answer:line symmetry and rotational symmetry; 90°; order 4Hope it helps
-------☆ﾟ.･｡ﾟᵴɒƙυᴚᴀ_ƨȶäᴎ❀
Select the correct answer. (And pls no link)
Compare the two functions.
f(x)= 1/50(3)^x
g(x)=1/5x^2
Answer:
20 is right
Step-by-step explanation:
to easy I know maths
Answer:
When your comparing the two functions.
F(x)= 1/50(3)^x
G(x)=1/5x^2
When you compare it i think it would be C
PLEASE DONT QUOTE ME ON THIS
Step-by-step explanation:
how do I make a box plot
Answer:
To construct a box plot, use a horizontal or vertical number line and a rectangular box. The smallest and largest data values label the endpoints of the axis. The first quartile marks one end of the box and the third quartile marks the other end of the box
Answer:
this may help
Step-by-step explanation:
A box plot is constructed from five values: the minimum value, the first quartile, the median, the third quartile, and the maximum value. We use these values to compare how close other data values are to them. To construct a box plot, use a horizontal or vertical number line and a rectangular box.
How many squares will be in figure 10!?
Answer:
98 i believe,
Step-by-step explanation:
hope this helps, have a great day :)
PLEASE HELP
A
B
C
D
???
Review the graph of function j(x). What is Limit of j (x) as x approaches 3?
Answer:it’s 6
Step-by-step explanation:
The limit of the function J(x) as x approaches 3 is 4.
What is the limit as x approaches 3?
For a function f(x), the limit as x approaches a is equal to the value that the function takes really near the value x = a, and we say that the limit exists only if the value is the same if we approach from x > a and for x < a.
In this case, we can see that:
J(3) = 6
But the limit is not in x = 3, is near it, and we can see that near x = 3, the value of the function is actually 4, then we have:
[tex]\lim_{x \to 3} J(x) = 4[/tex]
So the correct option is the second one.
If you want to learn more about limits, you can read:
https://brainly.com/question/5313449
I have to factor 14 and 22 to find the greatest common factor
Answer: The GCF is 2
Answer:
2
Step-by-step explanation:
Solution by Factorization:
Hope this helps u :D
Find the volume and show work (round to the tenths)
Answer:
120 km^3
Step-by-step explanation:
the base is a right triangle
A = (leg1 x leg2)/2 = (6 x 8)/2 = 24 km^2
the volume of a prism is base area x height
V = 24 x 5 = 120 km^3
Answer:
2000
Step-by-step explanation:
I WILL GIVE BRAINLIEST!!!!!!
Starting at (0,0) if you were to go 5 units left and 6 units up what coordinates would you end up at? What quadrant would you be in?
Answer:
I think Quadrant 1. I;m not trying to just answer for the points
Step-by-step explanation:
find the measure of the angle of elevation of the sun to the nearest degree, if a 100ft tall building casts a 150ft shadow.
Answer:
33.7º
Step-by-step explanation:
tan = opp/adj
tan∅ = 100/150 = 2/3
∅ = arctan 2/3
∅ = 33.690067525979787
33.7º
Which of the following sets do NOT represent Equivalent expression?
Answer:
Only B.
Step-by-step explanation:
Only B because 36/12 does not equal to 12/36!
g(x) = х2 — 6x = 12?
Answer:
amogus
Step-by-step explanation:
The perimeter of the figure below is 71.4 in. Find the length of the missing side.
8.3 in
4.4 in
4.4 in
4.4 in
4.4 in
2.7 in
2.7 in
4.4 in
4.4 in
11.4 in
11.4 in
?
Answer:
8.5
Step-by-step explanation:
The perimeter is the distance around the figure. It can be found by adding up the side lengths of all of the sides of the figure. In this case, one is given the perimeter (71.4), and all of the side lengths except one. Make an equation; call the unknown side (x), then solve for (x).
71.4 = 8.3 + 4.4 + 4.4 + 4.4 + 4.4 + 2.7 + 2.7 + 4.4 + 4.4 + 11.4 + 11.4 + x
Simplify,
71.4 = 62.9 + x
Inverse operations,
8.5 = x
Which rule describes the translation PQR – P'Q'R' ?
Answer:
(x.y)----> (x-3, y-3)
Step-by-step explanation: