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
Margaret [11]
3 years ago
12

There are 36 windows in the folsom’ house. the number of window is 3 times as many as the number of closets and 4 more than the

number of doors inside the house. how many closets are in the house? show your work.
Mathematics
1 answer:
xz_007 [3.2K]3 years ago
8 0

Answer:

66

Step-by-step explanation:

36x4=144

36x3=78

144-78=66

You might be interested in
6) Convert 2pie/3 to degrees<br> A) 30°<br> B) 60°<br> 120°<br> D) 240°
Gennadij [26K]
It would be c . 1.20
4 0
3 years ago
A store had 235 MP3 players in the month of January. Every month, 30% of the MP3 players were sold and 50 new MP3 players were s
neonofarm [45]
The answer is A cause 30% is 0.7 and f(n-1) equals the amount being sold the +50 is for every 50 new one and the the 235 is for what they started with                                         
7 0
3 years ago
Find the? inverse, if it? exists, for the given matrix.<br><br> [4 3]<br><br> [3 6]
True [87]

Answer:

Therefore, the inverse of given matrix is

=\begin{pmatrix}\frac{2}{5}&-\frac{1}{5}\\ -\frac{1}{5}&\frac{4}{15}\end{pmatrix}

Step-by-step explanation:

The inverse of a square matrix A is A^{-1} such that

A A^{-1}=I where I is the identity matrix.

Consider, A = \left[\begin{array}{ccc}4&3\\3&6\end{array}\right]

\mathrm{Matrix\:can\:only\:be\:inverted\:if\:it\:is\:non-singular,\:that\:is:}

\det \begin{pmatrix}4&3 \\3&6\end{pmatrix}\ne 0

\mathrm{Find\:2x2\:matrix\:inverse\:according\:to\:the\:formula}:\quad \begin{pmatrix}a\:&\:b\:\\ c\:&\:d\:\end{pmatrix}^{-1}=\frac{1}{\det \begin{pmatrix}a\:&\:b\:\\ c\:&\:d\:\end{pmatrix}}\begin{pmatrix}d\:&\:-b\:\\ -c\:&\:a\:\end{pmatrix}

=\frac{1}{\det \begin{pmatrix}4&3\\ 3&6\end{pmatrix}}\begin{pmatrix}6&-3\\ -3&4\end{pmatrix}

\mathrm{Find\:the\:matrix\:determinant\:according\:to\:formula}:\quad \det \begin{pmatrix}a\:&\:b\:\\ c\:&\:d\:\end{pmatrix}\:=\:ad-bc

4\cdot \:6-3\cdot \:3=15

=\frac{1}{15}\begin{pmatrix}6&-3\\ -3&4\end{pmatrix}

=\begin{pmatrix}\frac{2}{5}&-\frac{1}{5}\\ -\frac{1}{5}&\frac{4}{15}\end{pmatrix}

Therefore, the inverse of given matrix is

=\begin{pmatrix}\frac{2}{5}&-\frac{1}{5}\\ -\frac{1}{5}&\frac{4}{15}\end{pmatrix}

4 0
3 years ago
Solve for y<br> a. 4x + 5y = 25
AfilCa [17]

Answer:

y = -4/5x + 5

Step-by-step explanation:

In order to solve for y, we need to isolate the variable. First, let's subtract 4x on each side. After doing said step, we should now have this equation:

5y = -4x + 25

Next, we need to divide 5 on each side, giving us this new equation:

y = -4/5x + 5

There you go! Let me know if I did anything wrong ^-^

5 0
3 years ago
HELP PLS
Dmitry [639]

volume cylinder

=3.14×3^2×5

=141.3 cubic inches

volume sphere

=4/3×3.14×3^3

=113.04 cubic inches

difference between volume of cylinder and sphere

=141.3-113.04

=28.26 cubic inches

6 0
3 years ago
Other questions:
  • PLEASE HELP! 11 pts.
    14·2 answers
  • What is the middle number of 8 and 15
    6·2 answers
  • Maribel is having a pizza party for her friends. Each pizza costs $12. Maribel only has $108 saved for the pizza party. C=12p is
    11·1 answer
  • See attachment. PLEASE HELP ASAP!!!!! Thank you!!!!
    15·2 answers
  • Please help answer both questions
    8·2 answers
  • Hector gave 1/4 of his money and an additional $1 to calista he gave 1/5 of his remaining money and an additional $4 to Karen th
    11·2 answers
  • Find the Function and Solution in 2 different parts.
    8·1 answer
  • Starbucks opened two new locations. Location A costed $800 to open but makes $100 a month. Location B costed $1200 to open but m
    12·1 answer
  • 2
    5·1 answer
  • Simplify (a+3)-2(4+a)+5a_4<br>​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!