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
seropon [69]
3 years ago
7

Working alone, it would take Shandra 40 minutes to sand a table. To sand the same table, also working alone, it would take Kelly

1 hour. If they work together, the situation can be modeled by the following equation, where t is the time it would take to sand the table working together. StartFraction 1 Over 0.75 EndFraction + StartFraction 1 Over 1.25 EndFraction = StartFraction 1 Over time to complete together EndFraction Shandra claims it will take them about 50 minutes working together, because 50 is the mean of 40 and 60. Which best describes Shandra’s claim? Shandra’s claim is correct. Shandra’s estimate is too high because she should have found the differences instead of the mean. Shandra’s estimate is too high because it will take them about 24 minutes. Shandra’s estimate is too low because it will take them about 100 minutes.
Mathematics
2 answers:
Romashka [77]3 years ago
8 0

Answer:

B

Step-by-step explanation:

emmainna [20.7K]3 years ago
7 0

Answer:

24

Step-by-step explanation:

You might be interested in
9x+35=-5y slope intercept form
german

Answer:

y = - \frac{9}{5} x - 7

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Given

9x + 35 = - 5y ( add 5y to both sides )

5y + 9x + 35 = 0 ( subtract 9x + 35 from both sides )

5y = - 9x - 35 ( divide all terms by 5 )

y = - \frac{9}{5} x - 7 ← in slope- intercept form

6 0
3 years ago
Read 2 more answers
Solve for p: p - 6 = 5*<br> p = 1<br> p = 11<br> p = -1
julsineya [31]

Step-by-step explanation:

\text{p - 6 = 5}

Since we want to get ' p ' on left hand side , remove the number ' - 6 '.

⇢ \text{p  -  6  + 6 = 5 + 6} { The opposite of -6 is +6 and whatever we do to one side , we must do to the another side. So, I added 6 on both sides }

⇢ \text{p = 11} { On the left hand side , 6-6 = 0. That's how we removed the 6 so just 'p' is left. On the right hand side , 5+6 = 11 }

---------

\underline{ \underline{ \text{CHECK  }}} :

Always check your answer by substituting your answer for the variable that you solved for. This guarantees you a right answer !

\text{p - 6 = 5}

⇢ \text{11 - 6 = 5}

⇢ \text{5 = 5}

\pink{ \underline{ \boxed{ \text{Our \: final \: answer :  \boxed{ \underline{ \tt{p = 11}}}}}}}

Hope I helped ! ♡

Have a wonderful day / night ! ツ

▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁

5 0
3 years ago
Everything changed when the fire nation attacked
sergejj [24]

Answer:

What is the question?

Step-by-step explanation:

7 0
3 years ago
What is the value of x in the equation 9/10(x+2/3)=41/2
Nostrana [21]

Answer:

<h2><u>X= 22.111</u></h2><h2 />

Step-by-step explanation:

<u>Standard form:</u>

9/10x − 199/10  = 0

<u>Factorization:</u>

1/10(9x − 199) = 0

<u>Solutions:</u>

x = 597/27  ≈ 22.111111

3 0
3 years ago
Please help!! <br><br> Evaluate the determinant of the matrix.
kicyunya [14]

i can not give the answer unless you still cannot find it after these steps but I have steps that might help

1. Set the matrix (must be square).

2. Reduce this matrix to row echelon form using elementary row operations so that all the elements below diagonal are zero.

3. Multiply the main diagonal elements of the matrix - determinant is calculated.


5 0
3 years ago
Other questions:
  • The following data represent salaries, in thousands of dollars, for employees of a small company. Notice the data have been sort
    9·1 answer
  • Resultado de ____ · 200 = -1.000
    11·1 answer
  • A microwave is placed on top of two boxes. One box is 4 feet 2 inches tall, the other box is 3 feet 5 inches tall, and the micro
    5·1 answer
  • What is the following number in decimal form? 1.68 × 10^8
    8·2 answers
  • Brainliest + points<br><br> I need help I'm struggling
    14·1 answer
  • Express the following relationship as a rate: biking 16 miles in 2 hours
    12·2 answers
  • Can 18 feet and 5 yards be expressed as a ratio in simplest form
    6·2 answers
  • How can you check 413 divided by 45?
    6·1 answer
  • Martin charges $10 for every 5 bags of leaves he rakes. Last weekend, he raked 26 bags of leaves. How
    10·1 answer
  • Consider the sets below.
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!