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
Sholpan [36]
3 years ago
14

Add. 7 2/15 + 5 2/3 + 9 13/15 20 2/3 21 10/15 21 2/3 22 2/3

Mathematics
1 answer:
luda_lava [24]3 years ago
5 0
<span>7 2/15 + 5 2/3 + 9 13/15

The only one that needs to be changed a little is 5 2/3 so that it will also have 15 as a denominator.
5 2/3 * 5/5 = 5 10/15

</span><span>7 2/15 + 5 10/15 + 9 13/15
12 12/15 + 9 13/15
21 25/15

</span>21 25/15
We can simplify this a bit further by dividing the fraction by 5.
21 25/15 = 21 5/3

21 5/3
Now change the improper fraction into a mixed fraction and add the whole number to the current whole number.
5/3 = 1 2/3
21 + 1 2/3 = 22 2/3

The answer is 
D. 22 2/3
You might be interested in
Giá trị x thoả mãn x(x − 3) + x − 3 =0 là
svet-max [94.6K]

Here we will use the trial and error method.

  • We will try putting different values of x.
<h3 /><h3>1st of all</h3><h3>x=1</h3>

\begin{gathered}\\ \sf\longmapsto 1(1-3)+1-3=0\end{gathered}

\begin{gathered}\\ \sf\longmapsto (-2)+1-3=0\end{gathered}

\begin{gathered}\\ \sf\longmapsto -2+1-3=0\end{gathered}

\begin{gathered}\\ \sf\longmapsto -2-2=0\end{gathered}

\begin{gathered}\\ \sf\longmapsto -4≠0\end{gathered}

<h2>Now,</h2><h3>x=2</h3>

\begin{gathered}\\ \sf\longmapsto 2(2-3)+2-3=0\end{gathered}

\begin{gathered}\\ \sf\longmapsto 2(-1)+2-3=0\end{gathered}

\begin{gathered}\\ \sf\longmapsto -2+2-3=0\end{gathered}

\begin{gathered}\\ \sf\longmapsto -3≠0\end{gathered}

<h2>Again,</h2><h3>x=3</h3>

\begin{gathered}\\ \sf\longmapsto 3(3-3)+3-3=0\end{gathered}

\begin{gathered}\\ \sf\longmapsto 3(3-3)=0\end{gathered}

\begin{gathered}\\ \sf\longmapsto 3×0=0\end{gathered}

\begin{gathered}\\ \sf\longmapsto 0=0\end{gathered}

<h3>☣Hence, The value of X as 3 satisfies the equation!</h3>
5 0
3 years ago
What are the roots of y=x^2 +25
Lena [83]

Answer:

Its a i just took the test

Step-by-step explanation:

4 0
3 years ago
Add.<br> (2p? + 9p + 9) + (3p? + 4p)
astra-53 [7]
(5p+13p+9) I believe
6 0
3 years ago
Solve for n.<br> 3/4 x n = 1
cestrela7 [59]
3/4 times n=1

remember that when you multiply 3/4 by 4/3 you get 12/12=1 so it simplifies
remember that you can do anything to an equation as long as you do it to both sides

3/4 ties n=1
multiply both sides by 4/3 to clar fraction
12/12 times n=4/3 times 1
1 times n=4/3
n=4/3

answer is n=4/3 or 1 and 1/3
3 0
3 years ago
The temperature was -14°F
sleet_krkn [62]

Answer:

-21F

Step-by-step explanation:

You basically count 14+7 equal 21 so -14-7 is -21.

8 0
3 years ago
Read 2 more answers
Other questions:
  • The speed that a tsunami can travel is modeled by the equation s = 356 StartRoot d EndRoot , where S is the speed in kilometers
    7·1 answer
  • How many related equations does every equation have?
    12·2 answers
  • N/3 ≤ 3<br><br> Solve the Inequality and show all work!
    14·2 answers
  • 20) FISH The elevation of a fish is -27 feet. a. The fish decreases its elevation by 32 feet, and then increases its elevation b
    12·1 answer
  • Write an equation of the direct variation that includes the point (9, –12).
    13·2 answers
  • What is the value of x in trapezoid ABCD?<br> x=15<br> x=20<br> x=45<br> X=60
    15·2 answers
  • In the diagram below of triangle EFG, H is a midpoint of EF and J is a midpoint
    8·1 answer
  • What is the value of z?
    12·2 answers
  • Alicia pays $180 to have cable and wi-fi installed in her home. Each month, she will pay $75 month for her cable
    10·1 answer
  • A grocer purchased 200 eggs at rs.9each. 20 of them were broken and he/she sold the rest at rs.9.50 each.Find his /her profit or
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!