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
Flura [38]
4 years ago
13

Which ordered pair is the solution to the system of equations?

Mathematics
1 answer:
tiny-mole [99]4 years ago
7 0

Answer:

You can use Gaussian Elimination.

Double both sides of the first equation and add the second equation.

6x + 4y = 8

5x - 4y = 3

---------------

11x      = 11

x = 1

5 - 4y = 3

-4y = -2

y = 1/2

Step-by-step explanation:

You might be interested in
Produces 369 bolts in 36 minutes at the same rate how many bolts would be produced in 32 minutes
Karo-lina-s [1.5K]
Set it up as a proportion:

369 / 36 = x / 32

Then solve for x
7 0
3 years ago
Sarah and her family just got back from vacation they had been travelling for 3 days driving 8 1/2 hours each day how many hours
sergeinik [125]
3×8.5= 25.5 hours all together
6 0
3 years ago
with Judy jogging north and Jackie jogging west (on straight roads). When Jackie is 1 mile farther fro m the intersection than J
miskamm [114]
Let the distance of Judy from intersection is x and distance of Jackie from intersection is y.

We convert the given information to equations, step by step.

Point 1: When Jackie is 1 mile farther from the intersection than Judy.

This means y is 1 mile more than x.

So,

y = 1 + x

Point 2: The distance between them is 2 miles more than Judy’s distance from the intersection. 

Distance between is x+ y.

So, x+y is 2 miles more than y.

x+y = y + 2
⇒
x = 2

From point 1 we have:

y = 1 + x = 1+ 2 = 3

So,

Distance of Judy from intersection is 2 miles and distance of Jackie from intersection is 3 miles.
4 0
3 years ago
Which of the values shown are potential roots of f(x) = 3x3 – 13x2 – 3x + 45? Select all that apply.
galina1969 [7]

Answer:

All potential roots are 3,3 and -\frac{5}{3}.

Step-by-step explanation:

Potential roots of the polynomial is all possible roots of f(x).

f(x)=3x^3-13x^2-3x+45

Using rational root theorem test. We will find all the possible or potential roots of the polynomial.

p=All the positive/negative factors of 45

q=All the positive/negative factors of 3

p=\pm 1,\pm 3,\pm 5\pm \pm 9,\pm 15\pm 45

q=\pm 1,\pm 3

All possible roots

\frac{p}{q}=\pm 1,\pm 3,\pm 5\pm \pm 9,\pm 15\pm 45,\pm \frac{1}{3},\pm \frac{5}{3}

Now we check each rational root and see which are possible roots for given function.

f(1)= 3\times 1^3-13\times 1^2-3\times 1+45\Rightarrow 32\neq 0

f(-1)= 3\times (-1)^3-13\times (-1)^2-3\times (-1)+45\Rightarrow \neq 32

f(-3)= 3\times (-3)^3-13\times (-3)^2-3\times (-3)+45\Rightarrow \neq -144

f(3)= 3\times (3)^3-13\times (3)^2-3\times (3)+45\Rightarrow =0\\\\ \therefore x=3\text{ Potential roots of function}

Similarly, we will check for all value of p/q and we get

f(-5/3)=0

Thus, All potential roots are 3,3 and -\frac{5}{3}.


5 0
3 years ago
Read 2 more answers
Which expression is equivalent to 4.4.4.4.4.4.4.4?
seraphim [82]

Answer:

your answer is D

Step-by-step explanation:

hope this helps

8 0
3 years ago
Read 2 more answers
Other questions:
  • Jody has already hiked 4 kilometers. The trail is 12 kilometers long. She can hike 2.5 per hour. Which function will help Jody f
    8·2 answers
  • The population of a town 4 years ago was 50,000
    11·1 answer
  • A die is rolled twice. what is the probability of showing a 3 on both rolls?
    12·1 answer
  • Please help out asap! AWARDING 30 POINTS IF YOU TELL ME THE CORRECT ANSWER!
    15·1 answer
  • Add. Write your answer in simplest form.<br> 2 5/6 + 3 2/5
    13·1 answer
  • Can you solve this:<br><br> 8cos^2x=6sinx+3
    5·1 answer
  • A taxi company is trying to decide whether to purchase brand A or brand B tires for its fleet of taxis. To estimate the differen
    7·1 answer
  • Assume that an 18 month CD purchased for $7000 pays an APR of 3% come compounded monthly. What is the APY? ( round your answer t
    14·2 answers
  • The shed in Stephanie’s back yard has a door that measures 6 feet high and 3 feet wide. Stephanie would like to buy and store a
    12·1 answer
  • (Elimination Strategies) Which of these strategies would eliminate a variable in the system of equations? x - 2y = 115x + 3y = -
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!