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
telo118 [61]
2 years ago
12

Which of the following values of x and y are solutions of the

Mathematics
1 answer:
fredd [130]2 years ago
7 0

Answer:

<h2>          B.  x = 9, y = 2</h2>

Step-by-step explanation:

You can just check the values:

A.  x = 2, y = 8

x + 3y = 2 + 3×8 = 26 not <16  ⇒  NOT these values

B.   x = 9, y = 2

x + 3y = 9 + 3×2 = 15  <16

x + y = 9 + 2 = 11  >10

YES, x = 9, y = 2 are solutions of the  system of inequalities

C.  x = 1, y = 5

x + 3y = 1 + 3×5 = 16 not <16  ⇒  NOT these values

D.  x = 7, y = 2

x + 3y = 7 + 3×2 = 13  <16

x + y = 7 + 2 = 9 not >10  ⇒  NOT these values

You might be interested in
An index that is a standardized measure used in observing infants over time is approximately normal with a mean of 90 and a stan
weqwewe [10]

Answer:

The proportion of children that have an index of at least 110 is 0.0478.

Step-by-step explanation:

The given distribution has a mean of 90 and a standard deviation of 12.

Therefore mean, \mu = 90 and standard deviation, \sigma = 12.

It is given to find the proportion of children having an index of at least 110.

We can take the variable to be analysed to be x = 110.

Therefore we have to find p(x < 110), which is left tailed.

Using the formula for z which is p( Z < \frac{x - \mu}{\sigma}) we get p(Z < \frac{110 - 90}{12} = 1.67).

So we have to find p(Z ≥ 1.67) = 1 - p(Z < 1.67)

Using the Z - table we can calculate p(Z < 1.67)  = 0.9522.

Therefore p(Z ≥ 1.67) = 1 - 0.9522 = 0.0478

Therefore the proportion of children that have an index of at least 110 is 0.0478

8 0
3 years ago
PLZ HELP ME IN THIS I NEED IT RIGHT AWAY!! ILL GIVE EXTRA POINTS AND BRAINLIST!!!
aniked [119]

Answer: 20

Step-by-step explanation:

So what I did was divide the pages by the hours and got 20

but, when it starts with 20 pages an hour you have... 20

7 0
2 years ago
!!20 points and Brainliest please help!!!
vitfil [10]

D) ac + ad + bc + bd

Hope it helps :)

7 0
2 years ago
Read 2 more answers
X/5=1/(x+4) solve for x
solmaris [256]

ANSWER:

X is -5 and 1.

1) cross multiply

2) subtract five from both sides

3) factor

4) check for extraneous

5) ask me if you are still confused.

6 0
3 years ago
What two mixed numbers between 3 and 4 have a product between 9 and 12
madreJ [45]
Here's an answer: 

3 1/4 and
3  1/2
4 0
3 years ago
Other questions:
  • Determine whether the following is a statistical question. In general how tall are giraffes? Help please
    11·2 answers
  • What is the rule for the transformations formed by a translation 9 units to the left and 9 units down
    7·1 answer
  • (MUST GIVE WORKING)
    14·1 answer
  • 1.) 5.7 is a rational number.
    14·2 answers
  • A box measure 4 units by 2.5by 1.5 units what is the greatest number of cubes with a side length of 1/2 unit that can pack insid
    10·1 answer
  • The function f(x) = 10x + 15 models
    9·1 answer
  • Add the following weights:<br>13 lb 7 oz<br>+ 10 lb 2 oz<br>Ib<br>OZ​
    6·1 answer
  • What is the predicted profit when the number of items made (x) is 2,500, and the number of stores stocking the product (x2) is 5
    12·1 answer
  • Find the area of a sector with a central angle of 126 degrees and a radius of 11.8 m. Round to the nearest tenth.
    12·1 answer
  • What is the distance from the origin to point A graphed on the complex plane below?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!