1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zheka24 [161]
3 years ago
13

tom had a very challenging fraction multiplycation problem to do, but his sister said it was really easy to do mentally. can you

find the answer mentally? Explain how

Mathematics
2 answers:
Zarrin [17]3 years ago
8 0

Answer:

80/81

Step-by-step explanation:

\dfrac{76}{81} \times \dfrac {80}{76}=\dfrac{76\times 80}{81\times76}

Cross cancel the common factor of 76:

\dfrac{76\times 80}{81\times76}=\dfrac{80}{81}

krok68 [10]3 years ago
6 0

Answer:

76/81×80

76=80/81

Step-by-step explanation:

You might be interested in
A rectangle is 3 times as long as it is wide. the perimeter is 60 cm. find the dimensions of the rectangle.round to the nearest
My name is Ann [436]
60 divided by 8 =7.5 (The four sides of a square and then merely add two additional lengths to two sides) Now 7.5 times 3= 22.5 which gives two sides at
22.5cm and two sides at 7.5cm total is 60cm
3 0
3 years ago
What number is an outlier for the given data? 23,34,27,7,30,26,28,31,34. A)7 B)23 C)31 D)34
melamori03 [73]

Answer:

A) 7

Step-by-step explanation:

<em>The outlier of a given data set is one that is significantly larger or smaller than the rest of the data</em>.

In this set, most of the values are within the 25-35 range, more or less. But out of all of those numbers, one of the is too small to make sense, which is 7.

3 0
4 years ago
(1 point) find the point pp where the line x=1+t,y=2t,z=−3tx=1+t,y=2t,z=−3t intersects the plane x+y−z=1.
emmasim [6.3K]
Sub in values for x,y,z into plane equation.

(1+t) + 2t - (-3t) = 1

Solve for 't'

6t + 1 = 1
t = 0

Sub back in t=0 into line to find point.
x = 1+0 = 1
y = 2(0) = 0
z = -3(0) = 0

Answer :  The point is (1,0,0)
5 0
4 years ago
John worked 40 hours and made $640. Tanya made $960 working for 60 hours. Who makes more per hour?
Levart [38]

Answer:

they make the same per hour

5 0
3 years ago
What is the partial derivative of a given function
Marizza181 [45]
Partial differentiation of a function with more than one variables refers to its derivative being taken with respect to one of those variables, while the rest being held as a constant.

An example is the volume of a cylinder given by:
V(h, r) = \pi r^{2}h

The volume requires two variables in order to work out the volume, namely the radius and the height.

Using partial differentiation, its partial derivative can become:
\frac{\partial V}{\partial r} = 2\pi rh

This symbol is used in place of the derivative symbol, in order to distinguish total derivatives and partial derivatives.
7 0
4 years ago
Other questions:
  • A store is having a 20% off sale. The sale price of an item with price p is p – 0.2p. What is an equivalent expression?
    7·2 answers
  • Tammy wants to grow cube watermelons like the ones that are sold in Japan. She found the following directions on the internet: “
    9·1 answer
  • 24 disc four display racks hold 32 disc how many racks are needed
    6·1 answer
  • Some help would be good
    5·2 answers
  • It says to rounds each number to the place of the underlined digit
    10·2 answers
  • Morgan is walking her dog on an 8-meter-long leash. She is currently 500 meters from her house, so the maximum and minimum dista
    12·1 answer
  • 4 people take 3 hours to paint a fence assume that all people paint at the same rate How long would it take one of these people
    12·1 answer
  • HELP PLEASE!! IF NO HELP I DIE!!
    8·1 answer
  • Find the area of the following shape
    11·2 answers
  • What x 9 = 3? <br> 3 Divided by 9 = what
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!