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
Westkost [7]
3 years ago
6

What does x - 3y = -15 equal

Mathematics
1 answer:
Ket [755]3 years ago
3 0

Answer:

y=1/3x+5

Step-by-step explanation:

I believe this question is turn in to slope-intercept form. If it's not, please let me know. So slope-intercept form is y=mx+b and on the question, they use standard form. Standard form is Ax+Bx=C. To turn standard form into slope-intercept form, you simply make you're y value alone on one side. So you're going to move x to other side my subtracting x on both sides. -3y=-x-15. Right now, we are almost done. We just have to make y own their self which means that y must me one. To make it as one, you will divide -3 on both sides. y=1/3x+5. Make sure in this step, you have to look very careful with negative numbers. If you multiply or divide negative number to negative number, it turns in the positive. So x-3y=-15 is equal to y=1/3x+5.

You might be interested in
Suppose you received a score of 95 out of 100 on exam 1 . The mean was 79 and the standard deviation was 8 . If your score on ex
Schach [20]

Answer:

You did the same on both exams.

Step-by-step explanation:

To compare both the scores, we need to compute the z scores of both the exams and then compare the values. The formula for z-score is:

<u>Z = (X - μ)/σ</u>

Where X = score obtained

           μ = mean score

           σ = standard deviation

For Exam 1:

Z = (95 - 79)/8

  = 16/8

<u>Z = 2</u>

For Exam 2:

Z = (90 - 60)/15

  = 30/15

<u>Z = 2</u>

<u>The z-scores for both the tests are same hence the third option is correct i.e. </u><u>you did the same on both exams.</u>

8 0
3 years ago
An electronics company makes communication devices for military contracts. The company just completed two contracts. The navy co
adelina 88 [10]

Answer:

Workers of army contract were more productive.

Step-by-step explanation:

To determine on which contract the workers were more productive compute the work done per hour by the workers for both contracts.

  • <u>Navy Contract</u>:

Number of devices = 2,300

Number of workers = 25

Number of weeks = 2 weeks

Number of hours per week = 40

The number of hours it took 25 workers to produce 2300 devices is =

=25\times2\times40\\=2000\ hours

Then number of devices produced in 1 hour is = \frac{2300}{2000}= 1.15\ devices\ per\ hour

  • <u>Army Contract</u>:

Number of devices = 5,500

Number of workers = 35

Number of weeks = 3 weeks

Number of hours per week = 40

The number of hours it took 35 workers to produce 5500 devices is ==35\times3\times40\\=4200\ hours

Then number of devices produced in 1 hour is = \frac{5500}{4200}= 1.31\ devices\ per\ hour

The workers for the army contract are more productive since they produce 1.31 devices per hour whereas the workers for navy contract produces 1.15 devices per hour.

4 0
3 years ago
Jasper made a flag for his football team. He painted 1/2 of the flag blue and 1/2 of the flag yellow. He added stars to 1/3 of t
SVETLANKA909090 [29]

For this case we have that half of the flag was painted blue and the other half yellow.

In addition, a third of the blue half was covered with stars.

So:

\frac {1} {2} * \frac {1} {3} = \frac {1} {6}

A sixth of the flag is blue with stars.

Answer:

\frac {1} {6}

6 0
3 years ago
Plz help me 2x+y=4 4x+2y=8
aleksklad [387]

Answer: Y= 2 X=1

Step-by-step explanation:

2x+y=4                  4x+2y=8

2x     =/2                     2y= /2

y=2                          4x=4

                               /4= /4

                               X= 1

6 0
4 years ago
Read 2 more answers
IM DOING A TEST!<br><br> Idk how to do this help<br> Please try
goldenfox [79]

Answer:

1 is 102

2 is 78

~~~~~~~~~~~~~~~~~~~~

Always double check :)

7 0
4 years ago
Read 2 more answers
Other questions:
  • If we toss 3 coins, what is the probability that no tails will appear?
    15·2 answers
  • Please just use the pics cause it’s a graph.
    7·1 answer
  • 85% of the people survey thought the price of the car wash was reasonable. If 164 people thought the cost of the car wash was re
    15·1 answer
  • You get paid $20 for 4 hours of work. How much would you get paid for 200 hours?
    14·1 answer
  • When combining like terms what is -6n - 4n?
    13·1 answer
  • Joseph bought a box of pens for $15.98. The price included a $1.25 donation to the local food drive. Tina bought 3 boxes of the
    9·1 answer
  • Please help me with my math
    11·2 answers
  • City A is due north of City B. Find the distance between City A ​( north​ latitude) and City B ​( north​ latitude). Assume that
    5·2 answers
  • The sum of all of the solutions for the equation (6x+k)(3x-11)=0 is 1. What is the value of k?
    15·1 answer
  • Please help, thanks for understanding
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!