Answers
Related Questions
Tom can do a job in 210 minutes; Tom and Jerry can do the job together in 52 minutes. How long for Jerry to do the job by himself?
Answers
Answer:
158
Step-by-step explanation:
you only need to do is subtract
Jerry can do the job in approx 17 minutes working alone.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, Tom can do a job in 210 minutes and assuming Jerry to do the job
in x minutes and work to be 1.
∴ 1/210 + 1/x = 1/52.
1/x = 1/52 - 1/210.
1/x = (210 - 52)/2730.
1/x = 158/2730.
1/x = 79/1365.
x = 1375/79.
x = 17 minutes approx.
learn more about numerical expressions here :
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what is 1/3 of 1/2 THANKS!
Answers
Answer:
1/6
Step-by-step explanation:
Visualizing having one whole pizza.
Mark it into two sections. Each sections the same amount of pizza.
1/3 of 1/2 means take one of the sections called 1/2 of the pizza and mark it into three equal sections.
The other section called 1/2 can also be marked into three equal sections.
That will produce 6 smaller sections of the whole pizza.
Look at the one of the half of the pizza.
One of the three slices of 1/2 of the pizza is 1/3 of 1/2 of the pizza.
Look at the whole pizza. Isn’t the 1/3 of 1/2 = 1/6 of the whole pizza.
1/3(1/2) = 1/6
Answer: 1/6
Step-by-step explanation:
Name Age
Alex 8
A.j 6
Chelsea 9
Derek 15
Maddie 12
Paul 8
Ryan 19
Willa 11
What is the median age of Emma's cousins?
Answers
Sonia rolls a six-sided number cube 12 times and records if she rolls a 2. What is the number of trail for this binomial experiment
Answers
Sonia rolls it 12 times, so there's 12 trials.
Step-by-step explanation:
hope this helps ya :)
Answer: just go w C i dunno
Step-by-step explanation:
Super Salad Dressing is made with 8\text{ mL}8 mL8, start text, space, m, L, end text of oil for every 3\text{ mL}3 mL3, start text, space, m, L, end text of vinegar.
Which of the following mixtures will taste the same as Super Salad Dressing?
Choose 3 answers:
Choose 3 answers:
(Choice A)
A
80\text{ mL}80 mL80, start text, space, m, L, end text of oil with 30\text { mL}30 mL30, start text, space, m, L, end text of vinegar
(Choice B)
B
3\text{ mL}3 mL3, start text, space, m, L, end text of oil with 8\text { mL}8 mL8, start text, space, m, L, end text of vinegar
(Choice C)
C
56\text{ mL}56 mL56, start text, space, m, L, end text of oil with 21\text { mL}21 mL21, start text, space, m, L, end text of vinegar
(Choice D)
D
40\text{ mL}40 mL40, start text, space, m, L, end text of oil with 25\text { mL}25 mL25, start text, space, m, L, end text of vinegar
(Choice E)
E
48\text{ mL}48 mL48, start text, space, m, L, end text of oil with 18\text { mL}18 mL18, start text, space, m, L, end text of vinegar
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Answer: A, C, and E! I just took this on Khan Academy! Please mark me brainliest because it it correct!
Given Rhombus RSTV with m
m
m
m
Answers
Answer:
CAN YOU HEAR THE SILIECE
Step-by-step explanation:
Answer:
I'm not sure if you're asking for this answer...
Step-by-step explanation:
In-plane Euclidean geometry, a rhombus (plural rhombi or rhombuses) is a quadrilateral whose four sides all have the same length. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length
what is the hcf of 24 and 34
Answers
Answer:
The highest common factor for 24 and 34 is 2
Answer:
Final Step: Biggest Common Factor Number
The biggest common factor number is the GCF number. So the greatest common factor 24 and 34 is 2.
explanation:no need hope it helps. C:
#carryonlearning
someone pls help me with this
Answers
Answer:
D.
Step-by-step explanation:
The volume can be found by adding the volumes of a cylinder (the upper part of the figure) and a cone (the lower part of the figure).
Volume of Cylinder: [tex]V=\pi r^2 h=\pi(3^2)(3)=27\pi\approx 84.823 \text{ cubic feet}[/tex]
Volume of Cone: The height of the cone is 3 feet (the whole figure is 6 feet tall and the cylinder uses up 3 feet of that -- 6 - 3 = 3).
[tex]V=\frac{1}{3}\pi r^2 h=\frac{1}{3}\pi(3^2)(3)=9\pi\approx 28.274[/tex]
The total volume is 84.823 + 28.274, about 113.1 cubic feet
A square is shown below. Which expression can be used to find the area, in square units, of the shaded triangle in the square? A square with a side length of 6 units is shown. A diagonal is drawn with one section shaded inside the figure. (5 points) a fraction 1 over 4 ⋅ 6 ⋅ 6 b fraction 1 over 2 ⋅ 3 ⋅ 3 c fraction 1 over 4 ⋅ 3 ⋅ 3 d fraction 1 over 2 ⋅ 6 ⋅ 6
Answers
Answer:
Step-by-step explanation:
1/2 6 times 6
Lincoln technical college has 156 students they expect 700 guest for a special speaker the custodian has set up 1500 chairs how many more chairs are needed if everyone is do you have a seat
Answers
Answer: 56 seats
Step-by-step explanation:
Question should say 856 students not 156 students.
If there are 856 students and 700 guests, the total number of people coming for the event is:
= 856 + 700
= 1,556 people
There are 1,500 seats so the extra seats needed are:
=Number of people coming - Seats available
= 1,556 - 1,500
= 56 seats
If the question is indeed 156 students then there is no need for extra seats as the total number of people coming would be: 156 + 700 = 856. Seats would be surplus.
The high temperatures for the week were 87, 82, 100, 83, and 88. What is the mean of the temperatures without the outlier
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Mean is average. Average is calculated by adding quantities together and then dividing the total by the number of quantities.
(87 + 82 + 83 + 88)/4 = 85
Hope this helps!
2/18 + 3/6 in it's simplest form
Answers
Answer:
11/18
Step-by-step explanation:
3/6, aka 1/2 is 9/18 and that plus 2/18 is 11/18
What is the image of the point (2,-3) after a rotation of 90 ∘ counterclockwise about the origin?
Answers
Answer:
(2,-3) changes to (3,2)
A is correct.
Step-by-step explanation:
Given: The point (2, −3) after a counterclockwise rotation of 90° about the origin.
Rotation is counterclockwise about origin.
We are given coordinate
We can see in diagram also. Please see the attachment for rotation.
Hence, (2,-3) changes to (3,2
Helppppp me I'm I'm exam
Answers
Answer:
b
Step-by-step explanation:
1 1/2 minus 2 is 1/2 which is 5/10 add that with 1/10 and get 6/10 and simplify and get 3/5
Please please help please please help me with this question please
Answers
Answer:
U just need to guess it does not have to be exact just say like 200 bricks and u will get it right.
Isaac has a points card for a movie theater.
He receives 65 rewards points just for signing up.
He earns 12.5 points for each visit to the movie theater.
He needs at least 210 points for a free movie ticket.
.
PLEASE HELP
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how i got this:
i subtracted 65 from 210 to eliminate the reward points given when signing up because those points were not earned for the amount of times he visited the theater
after doing so, i got 145. from there i divided 145 by 12.5 to determine the amount of visits he would have to make
that gave me 11.6, however i rounded up to 12 because if he only visited the theater 11 times he would only have 137.5 points. thus, if isaac visited the theater 12 times he would have a total of 150 points. (having enough for the free ticket)
18 - 4x = -2
A. 5
B. -4
C. 4
D. -5
Answers
Answer:
x=5
Step-by-step explanation:
-4=-2-18
-4=-20
x=5
Can you help me please everyone is ignoring my questions
also explain how you got that answer too
Answers
Angle C is 127 degrees
In a class of 140 students numbered from 1 to 140. All even numbered students opted
Mathematics course those whose number is divisible by 3 opted physics course & those whose
number is divisible by 5 opted chemistry course. The number of students who did not opted any
of three courses is
Answers
Step-by-step explanation:
Let m denotes maths P denotes physics C denotes chemistryn(M) = 70, n(P) = 46, n(C)70+46=106 No. of students not opted for any course = 140 – 102 = 38What is the surface area of the square pyramid below?
A. 25 square inches
B. 65 square inches
C. 85 square inches
D. 105 square inches
Answers
Answer:
B. 65 sq. inches
Step-by-step explanation:
(5×5)+(4×½×5×4)
= 25+40
= 65 sq. inches
he dot plot below shows how many days this week students in 6th grade had a Poptart for breakfast.
Which statement about the data is true?
A.
The range is 8.
B.
The mode is 3.
C.
There is a gap from 5 to 7.
D.
The median is 2.
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Answer:
letter c
im not sure and i hope this is helpful
what is the value of x? 5 60 30 marking brainliest and giving thanks to all!!!
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this is 90 60 30 formula for example
90 meet 2x
30 meet x
and
60 meet x√3
so 90 meet 5
30 meet 5/2=2.5
and 60 meet 2.5√3
so the answer is 2.5
Answer:
2.5
Step-by-step explanation:
[tex]\sin 30\degree = \frac{x}{5}\\\therefore x = 5\sin 30\degree\\\therefore x = 5 \times \frac{1}{2}\\\therefore x = 2.5[/tex]
Chloe had 2 bags of dry cat food, she combined them into one big container. One bag had56kg of cat food. The other bag had 34kg of cat food. How many kilograms does the container weigh now that the bags have been combined?
Answers
Answer: 90kg of cat food
Step-by-step explanation: 56+34=90
Answer:
90kg
Step-by-step explanation:
56 plus 34 is 90
You move right 2 units and down 7 units. You end at (8, 2). Where did you start?
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Answer:
(10,9)
Step-by-step explanation:
Find the change in temperat
(1 Point)
from - 13°C to 15'c
Answers
Answer:
The change in temperature is 28°C
Step-by-step explanation:
Please help me solve this!
Answers
CHAD HAS 1/2 TON OF GRAVEL TO SPREAD EQUALLY IN 8 SQUARE YARDS FOR HIS DRIVEWAY. HOW MANY TONS OF GRAVEL WILL BE SPREAD IN EACH SQUARE YARD
Answers
Answer:
1/16
Step-by-step explanation:
½ ton ==> 8 sq. yards
so, each sq. yard needs ½ ÷ 8 = 1/16 ton
HELP ME PLS!!!!
Which statement correctly compares the values in the statement?
|-0.073| □ |0.73|
O 0.073 < 0.73
O 0.073 < -0.73
O 0.073 > 0.73
O 0.073 = 0.73
Answers
Answer:
the first option : 0.073< 0.73
Step-by-step explanation:
the first option : 0.073< 0.73
Answer:
O 0.073 < 0.73
Step-by-step explanation:
Definition of greater then and less thenThe greater than and less than symbols indicate a difference between two values. The symbol for greater than is " > ", and the symbol for less than is " <",
The value, O 0.073 is lesser then 0.73
hence,0.73 is the correct option
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Courtney bought 7 pounds of candy at store A for $15.50. Chris bought 5 pounds of candy at store B for $90.50 Kelsey bought 8 pounds of candy at store C for $18.25. Which store has the better buy?
Answers
Solve for a side in right triangles
I don’t know how to do this so please someone teach me how to do this?? I need help here!
Answers
Answer:
2.33
Step-by-step explanation:
imagine a circle. its center is A, and it goes through B, so its radius is AB.
then it is important to know that the sum of all the angles in a triangle is 180 degrees.
one angle (at C) is 90. the angle at B is 25. so, the angle at A is 180 - 90 - 25 = 65 degrees.
more back to our circle.
in this circle the line CB is the sine of the angle at A multiplied by the radius.
and AC is the cosine of the angle at A multiplied by the radius.
we can ignore the orientation + and - of these functions, as we are only interested in the absolute length (and we can mirror the triangle, and all the angles and side lengths still stay the same).
=> CB = sin(A)×AB
AC = cos(A)×AB
=> 5 = sin(65)×AB
=> AB = 5 / sin(65)
=> AC = cos(65)×5/sin(65) = 5 × (cos(65)/sin(65)) =
= 5 × cot(65) = 2.33