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
kenny6666 [7]
3 years ago
8

Please answer this correctly without making mistakes

Mathematics
1 answer:
Tomtit [17]3 years ago
6 0

Answer:

51\frac{4}{17}

Step-by-step explanation:

If we add all of the fractions together, we 'd get 55/17 of an hour. The question is to find how many hours she spent exercising. Well, for that we'd just need to see how many seventeens fit inside 55. We could divide, but that'd lead us to a really long, weird number.

Since 17*3=51, we know that in total, three seventeens fit inside 55. Yet, there's still remainders.

55-51=4

So, our answer would be 51 (how many 17s go into 55) and 4/17 (the remainder.)

Hope this helps!! <3 :)

You might be interested in
PLEASE HELP!!!<br><br> Which line is the best model for the data in the scatter plot?
fomenos

Answer:

top left

Step-by-step explanation:

it goes through the most dots

8 0
3 years ago
-1/2 + (3/4 × 4/9) = ?
likoan [24]

Answer:

-0.16666 and 6 repeats

Step-by-step explanation:

7 0
3 years ago
An electronics company produces​ transistors, resistors, and computer chips. Each transistor requires 3 units of​ copper, 1 unit
padilas [110]

Answer:

An electronics company can be produce 350 transistors and 340 computer chips, they can´t produce resistors.

Step-by-step explanation:

1. We will name the variables for transistors, resistors and the computer chips.

a = Transistors

b= Resistors

c = Computer chips

2. We propose three linear equations, one for the copper, one for the zinc and one for the glass.

\left \{ {{3a+3b+2c=1730} \atop {a+2b+c=690}}\atop {2a+b+2c=1380}} \right.

3. We write the matrix form as Ax=d

A=\left(\begin{array}{ccc}3&3&2\\1&2&1\\2&1&2\end{array}\right)

x=\left(\begin{array}{ccc}a\\b\\c\end{array}\right)

A=\left(\begin{array}{ccc}1730\\690\\1380\end{array}\right)

With this formula the solution of x is x=\frac{d}{A} or x=A^{-1}d

4. We will find the inverse matrix A^{-1} using the formula:

A^{-1} = \frac{1}{detA} (C_{A})^{T}

a. det A

det A=\left[\begin{array}{ccc}3&3&2\\1&2&1\\2&1&2\end{array}\right] =3*(4-1)-3*(2-2)+2*(1-4)=9-0-6=3

b. (C_{A})^{T}

C_{A}=\left(\begin{array}{ccc}4-1&.(2-2)&1-4\\-(6-2)&6-4&-(3-6)\\3-4&-(3-2)&6-3\end{array}\right)

C_{A}=\left(\begin{array}{ccc}3&.0&-3\\-4&2&3\\-1&-1&3\end{array}\right)

(C_{A}) ^T=\left(\begin{array}{ccc}3&0&-3\\-4&2&3\\-1&-1&3\end{array}\right)^T

(C_{A}) ^T=\left(\begin{array}{ccc}3&-4&-1\\0&2&-1\\-3&3&3\end{array}\right)

c.A^{-1}

A^{-1}=\frac{1}{3} \left(\begin{array}{ccc}3&-4&-1\\0&2&-1\\-3&3&3\end{array}\right)

5. As x=\frac{d}{A} or x=A^{-1}d, the solution of x is:

x=\frac{1}{3}\left(\begin{array}{ccc}3&-4&-1\\0&2&-1\\-3&3&3\end{array}\right)\left(\begin{array}{ccc}1730\\690\\1380\end{array}\right)

x=\frac{1}{3}\left(\begin{array}{ccc}(3*1730)+(-4*690)+(-1*1380)\\(0*1730)+(2*690)+(-1*1380)\\(-3*1730)+(3*690)+(3*1380)\end{array}\right)

x=\frac{1}{3}\left(\begin{array}{ccc}1050\\0\\1020)\end{array}\right)

X=\left[\begin{array}{ccc}350\\0\\340\end{array}\right]

<u><em>Therefore:</em></u>

<u><em>a= 350 Transistors</em></u>

<u><em>b=0 Resistors</em></u>

<u><em>c=340 Computer chips</em></u>

4 0
3 years ago
9. The formula V = wh is the volume formula for a rectangular prism. Find the length
Lelu [443]
Answer c 10cm
good luck
4 0
3 years ago
6=2(y+2) i need help
Snowcat [4.5K]

Answer:

y=1

Step-by-step explanation:

6=2(y+2)

6=2y+4

2=2y

y=1

3 0
2 years ago
Read 2 more answers
Other questions:
  • 54 cans of food during the food drive if there are 29 classes in the school what was the least number of cans collected
    5·1 answer
  • The school board administered a math test to all students in grade 666 at High Achievers Charter School and determined that 15\%
    9·1 answer
  • HELP PLEASE PLZ !!!!!!!!
    10·2 answers
  • What is 1/2 divided by 8
    5·2 answers
  • A similar follow-up study is done on a sample of 25 meat-lovers who never eat vegetables, again randomly selected from the same
    14·1 answer
  • Shawn is coasting down a 500 \text{ cm}500 cm500, start text, space, c, m, end text long ramp on his inline skates. The wheels o
    9·1 answer
  • The cost to rent a car is $25 plus an additional $0.15 for each mile the car is driven. Which of the following equations could b
    13·2 answers
  • On a certain hot summer's day, 321 people used the public swimming pool. The daily prices are $1.75 for children and $2.00 for a
    11·2 answers
  • How many solutions does the equation<br><br> 4x - 2(-x + 6) = 3(2x - 4) have?
    5·1 answer
  • All of the following are suggestions of things to do if you have time left after completing the test except:
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!