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
pentagon [3]
3 years ago
12

If 3p+4q=8 and 4p+3q=13, what is q equal to?

Mathematics
1 answer:
alexira [117]3 years ago
8 0
Q= -1. I did this problem by elimination, by multiplying the first one by -4 and the second by 3, to cancel out the p. I ended up with -7q=7. I divided both sides by -7, and got q=-1. 
You might be interested in
if one tray can hold 12 loaves of bread and eat your I can hold 10 trays can a hundred twenty-five Loaves fit on one rack
tia_tia [17]
I believe the wording of the question is: If one tray can hold 12 loaves of bread and the rack can hold 10 trays, can a hundred and twenty-five loaves fit on one rack? 
Then the answer would be, no. 
12 x 10 = 120

6 0
3 years ago
Read 2 more answers
Let B be the basis of P3 consisting of the Hermite polynomials in Exercise 21, and let p.t / D 7 ! 12t ! 8t 2 C 12t 3. Find the
Anastasy [175]

To calculate the relative vector of B we have to:

P_B=\left[\begin{array}{ccc}3\\3\\-2\\3/2\end{array}\right]

The coordenates of:

p(t)= 12t^3-8t^2-12t+7, with respect to B satisfy:

C_1(1)+C_2(2t)+C_3(-2+4t^2)+C_4(-12t+8t^3)= 7-12t-8t^2+12t^3

Equating coefficients of like powers of t produces the system of equation:

\left \{ {C_1-2C_3=7} \atop {2C_2-12C_4=-12} \right. \\\left \{ {{4C_3=-8} \atop {8C_4=12}} \right.

After solving this system, we have to:

C_1=3\\C_2= 3\\C_3= -2\\C_4= \frac{3}{2}

And the result is:

P_B=\left[\begin{array}{ccc}3\\3\\-2\\3/2\end{array}\right]

Learn more: brainly.com/question/16850761

4 0
3 years ago
Calculate the slope of the line ​
malfutka [58]

Answer:

-5/4 or -1.25

Step-by-step explanation:

the points are (-6, -3) and (-2, -8)

the formula for slope is y2-y1/x2-x1

y2 is -8

y1 is -3

x2 is -2

x1 is -6

(-8+3)/(-2+6)

(-5)/(4)

-5/4 or -1.25

3 0
3 years ago
A man walks 20 km in 4hours. Find his speed
lianna [129]

Answer: 5km per hour

Step-by-step explanation:

You'd do 20/number of hours so you get 1 hour and you'll get his walking speed

7 0
3 years ago
Read 2 more answers
Please help me it’s urgent
bezimeni [28]

Answer:

the answer would be y=2x+4

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • What is the answer to 4.55÷5
    5·2 answers
  • Represent the model shown below using a
    8·2 answers
  • hello everyone right now i started at 9:30 mt and I have to do 3 hours of work I have to do a 30 minute zoom at 11 what time wil
    12·2 answers
  • How much interest will be paid in 2 years for a loan of $1500 at 8.25% simple interest ?
    14·1 answer
  • Find the least common multiple for each set of whole numbers.
    14·1 answer
  • How do you work out 20^4 / 20^6 x 20^5?
    13·1 answer
  • Match the correct word with it's definition
    13·1 answer
  • Which expression could be represented by this model?
    6·1 answer
  • If the standard deviation of an exam is 5, the z-score us 1.95 and the mean is 80; what is the actual test score? (Round the ans
    13·1 answer
  • The number has over positive integer divisors. One of them is chosen at random. What is the probability that it is odd
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!