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
Helen [10]
2 years ago
5

John took all his money from his savings account. He spent ​$110 on a radio and 4/11 of what was left on presents for his friend

s. John then put 2/5 of his remaining money into a checking account and donated the​ $420 that was left to charity. How much money did John originally have in his savings​ account?
Mathematics
1 answer:
svp [43]2 years ago
8 0

Answer:

$1210

Step-by-step explanation:

Let x be total amount

First John spent $110 on a radio and 4/11 of what was left on presents for his friends so he was left with

\frac{7}{11}(x-110)=\frac{7}{11}x-70

Then he put 2/5 of his remaining money into a checking account

\frac{3}{5}\left(\frac{7}{11}x-70\right)

Rest he donated to charity

420=\frac{3}{5}\left(\frac{7}{11}x-70\right)\\\Rightarrow \left(\frac{7}{11}x-70\right)=\frac{2100}{3}\\\Rightarrow \frac{7}{11}x-70=700\\\Rightarrow \frac{7}{11}x=770\\\Rightarrow x=1210

Hence total amount of money John originally had was $1210

You might be interested in
What is the value of side b?<br> A 20<br> B 15<br> C 10<br> D 5
Pavel [41]
I am not able to see the picture
3 0
2 years ago
Read 2 more answers
What is the determinant of this matrix:
vodka [1.7K]

Answer:

-56

Step-by-step explanation:

Formula to get determinant is::

\left[\begin{array}{ccc}a&b\\c&d\end{array}\right] = ad-bc

0(0)-8(7)

0 - 56

-56

6 0
1 year ago
Read 2 more answers
Find the volume of a pyramid with a square base, where the perimeter of the base is
Kobotan [32]

Answer:

6.8 cubic feet

Step-by-step explanation:

7.3/4=1.825, which is the side length, 1.825*1.825=20.2575 and then ypu divide 20.2575 by 3 because it is a pyramid and that gives you 6.7525

4 0
3 years ago
Find the Value of X (In this picture)​
slava [35]

Answer:

x = 63

Step-by-step explanation:

It's Quadrilateral so:

360-90-72= x + x +22 (Cause that 2 triangle is isosceles)

2x=126

x=63

4 0
3 years ago
How to solve y=3(0)^2-6(0)-5
Ilya [14]
Y = - 5 

I hope this helps. :)
8 0
3 years ago
Other questions:
  • The yard behind the cindy s house is rectangular in shape and has a perimeters of 72 feet . If the length l of the yard is 18 fe
    9·1 answer
  • What are the answers
    12·1 answer
  • What two numbers multiply 45 and add to 14
    12·1 answer
  • How do you solve the equation 3w-(-4)=8-w
    9·1 answer
  • Write 4 with denominator 5
    12·1 answer
  • 600,000 + 60,000????
    13·2 answers
  • Can the government offices be represented as a function of the ministers' names?
    8·1 answer
  • Find cos 0.<br> 15<br> 8<br> Kansnakka
    7·1 answer
  • Help me with question pls i have 10 min timer .A farmer plants corn in 1/4 of his field he plants white corn 3/5 of the corn sec
    15·1 answer
  • Factor x² - 4x + 5.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!