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
KiRa [710]
3 years ago
8

Amanda can dig a 10ft by 10ft hole in seven hours. Ming can dig the same hole in 10 hours. How long to dig the hole if they work

together
Mathematics
1 answer:
Klio2033 [76]3 years ago
5 0

Answer:

The answer should be 4.12 hours

Step-by-step explanation:

Sorry if I am wrong.

You might be interested in
Four times the larger number of two numbers is equal to seven times the smaller. The sum of the numbers is 22. Find the numbers
BartSMP [9]

Answer:

14 and 8

Step-by-step explanation:

Solution set:

x+y=22

4x=7y

Solving:

4(22-y)=7y

88-4y=7y

88=11y

8=y

8+14=22

6 0
3 years ago
Please help quickly.Thanks :)
Klio2033 [76]
Multiply 2x-5y= -21 by 3 to make it 6x-15y= -63
Multiply 3x-3y= -18 by -5 to make it -15x+15y=90

This cancels the y’s out which leaves us with

6x=-63
&
-15x=90

x for 6x=-63 equals - 10.5 so x is - 10.5 and for -15x=90, x= -6

Then you plug in x into any equation you’d like to find y.

Let’s plug in - 10.5 into 6x... equation.

6(- 10.5)-15y=-63

63-15y= -63
-63 -63

-15y=0
y=0 and x= - 10.5. When you plug in this values it makes the equation true!

But the correct answer is the first one north. Sorry if I’m doing too much hahah


If I’m confusing here’s the right answer...


6x-15y= -63
-15x+15y=90


5 0
2 years ago
Chris has decided to triple the amount of time he spends studying each night. If the data set that represents the number of minu
Kobotan [32]

Answer:

90,60,75,135,30,0,180

Step-by-step explanation:

Given : Chris has decided to triple the amount of time he spends studying each night

To Find: . If the data set that represents the number of minutes he had previously spent studying each night is 30, 20, 25, 45, 10, 0, 60, which data sets represents the number of minutes he will now spend studying.

Solution:

Previous Hours : 30,20,25, 45, 10, 0, 60

Now since she decided to triple the amount of time she spends :

So,

30*3=90

20*3=60

25*3=75

45*3=135

10*3=30

0*3=0

60*3=180

So, the new set of data is 90,60,75,135,30,0,180

3 0
3 years ago
What is the shape of the distribution shown below?
Harman [31]

Answer:

The answer would be B if its reffering to the photo and A if its reffering to the scale.

6 0
2 years ago
Read 2 more answers
A man travels 2 miles, turn left and travels 3 miles, turn left again and travel 6 miles. How far is he from the starting point?
Lelu [443]

Answer: 5 miles

Step-by-step explanation:

this creates a polygon which can be shortened to be a triangle with side lengths 3 and 4 and the hypotenuse unknown. to find the side length you use the formula a^2 + b^2 = c^2

3^2 + 4^2 = c^2

9 + 16 = c^2

25 = c^2

sqrt(25) = c

c = 5

Download pdf
4 0
3 years ago
Other questions:
  • 52
    5·1 answer
  • The degree of the polynomial function f(x) is 4. The roots of the equation f(x)=0 are −2, −1, 1 and 3.
    11·1 answer
  • jane is a cliff diver and she is planning on jumping from a height of 1104 ft and landing in the water below.she will end her di
    9·1 answer
  • I have to methods of doing these and neither are right.
    7·2 answers
  • 5. The Toy Car Company sells toy cars for $8.00<br> per car and charges $3.50 for shipping.<br> a.
    15·1 answer
  • A A A A A A A A A A A hi i need an answerrrrrrrrrrrrrrrrr <br><br> *dies*
    12·1 answer
  • How do i Write in Digits the fifty five hundredths​
    10·2 answers
  • What is the equation, in slope-intercept form, of the perpendicular bisector of the given line segment?
    11·2 answers
  • Can you help it’s due tn thx
    8·2 answers
  • Sally prepaid 13 the price of a ticket to a concert. The amount she prepaid was $15.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!