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
natima [27]
3 years ago
14

If p=20 and q=5, evaluate the following expression:3p−2q/5​

Mathematics
2 answers:
yanalaym [24]3 years ago
6 0

Answer: 10

Step-by-step explanation:

Substitute : 3(20) - 2(5) / 5

Combine Like Terms : 60 - 10 = 50

50 / 5 = 10

antiseptic1488 [7]3 years ago
5 0

If p = 20

q = 5

{ \sf{3p -  \frac{2q}{5}}}  \\  \\  \\ { \sf{3(20) -  \frac{2(5)}{5}}}  \\  \\  \\ { \sf{60 - 2 = 58}}

You might be interested in
If x=73, what does 4x+3 equal?
never [62]
4(73)+3
273+3
276
 Because you have to subsititue 73 for x. So you have to multiply 73 by 4 then what you get out of that you have to add it by 3.

5 0
3 years ago
In the library on a university campus, there is a sign in the elevator that indicates a limit of 16 persons. Furthermore, there
Vedmedyk [2.9K]

Answer:

a) 151lb.

b) 6.25 lb

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, a large sample size can be approximated to a normal distribution with mean \mu and standard deviation \frac{\sigma}{\sqrt{n}}.

In this problem, we have that:

\mu = 151, \sigma = 25, n = 16

So

a) The expected value of the sample mean of the weights is 151 lb.

(b) What is the standard deviation of the sampling distribution of the sample mean weight?

This is s = \frac{\sigma}{\sqrt{n}} = \frac{25}{\sqrt{16}} = 6.25

8 0
3 years ago
X 7 9 11 13 y -1 2 5 8 Is the relationship linear, exponential, or neither
Sliva [168]
15 is the answer hope this helps
3 0
3 years ago
Read 2 more answers
3x +2y=10 4x-y=6 using substitutional method​
Anna11 [10]

Answer:

( 2 , 2 )

Step-by-step explanation:

Solve the eqaution :

3x +2y=10

4x-y=6

Solve the eqaution for y :

3x + 2y = 10

y = -6 + 4x

Substitute for y : 3x + 2 ( -6 + 4x ) = 10

x = 10

Substitute for the value of x : x = 2

Substitute the given value of x into the eqaution

y = -6 + 4x : y = -6 + 4 × 2

Solve the eqaution: y = -6 + 4 × 2

solve the eqaution for y : y = 2

y = 2 A possible solution : the ordered solution pair is

( 2 , 2 )

8 0
3 years ago
Using the diagram, what is the value of x? <br><br> A. 110°<br> B. 30°<br> C. 60°<br> D. 120°
Sidana [21]

The value of x would be

D. 120 degrees

That is because a line is 180 degrees, subtract 60 degrees since angle is going to be 60 degrees (equilateral triangle) like this:

180 - 60 = 120 degrees


5 0
3 years ago
Read 2 more answers
Other questions:
  • at the bead shop, there are 25 rows of beads. if there are 320 beads in each row, how many beads are in the shop?
    11·2 answers
  • Divide: 4/15÷8/25. What is the answer?
    6·1 answer
  • 514 divided by 28 equals?
    11·2 answers
  • What fraction of £3.00 is 50p
    12·2 answers
  • Val walks 2 3/5 miles each day. Bill runs 10 miles once every 4 days.in 4 days,who covers the greater distance?
    14·1 answer
  • What is 7 over 8 eaqual to
    8·2 answers
  • colleen's family plans to paint the windows of their house. her father will paint twice as many windows as her mother, and Colle
    10·2 answers
  • EASY QUESTIONS ON THE EARTH
    14·2 answers
  • A set of biology exam scores are normally distributed with a mean of 70 points and a standard deviation of six points X equal th
    6·1 answer
  • The area of a parallelogram is six square units. Both the height and the length of the base are whole numbers. What are the poss
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!