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
kumpel [21]
3 years ago
8

X+y=15 and y=12x+5 substitution method

Mathematics
1 answer:
Ainat [17]3 years ago
8 0

Answer:(10/13,185/13)

Step-by-step explanation:

x+y=15

y=12x+5

----------

x+12x+5=15

13x=10

x=10/13

y=15-x

y=(15*13-10)/13

y=185/13

You might be interested in
What is 8.038 x 10^8 in standard form
Harlamova29_29 [7]
803800000 is the answer.
3 0
3 years ago
Read 2 more answers
#16 and #19 only <br> Please answer both as soon as possible.
Vlad1618 [11]

Answer:

1. it is not a direct variation because the value <em>k</em> is not kept throughout the ordered pairs

2. -a^5 - 2a³ + 2a², leading coefficient is -1

Step-by-step explanation:

1. to find the direct variation, we will use y/x = k with k representing our constant throughout the chart. if every value is equal to k, it is a direct variation

for this problem we will assume that the cup sizes are x and the cost is y

so the ordered pairs are (8, 0.90), (12, 1.35), (16, 1.80), and (24, 2.25)

.90/8 = 0.1125 <-- this is our <em>k</em> value for which every result has to be equal to

1.35/12 = 0.1125

1.80/12 = 0.1125

2.25/24 = 0.09375

since the value <em>k</em> was not kept throughout the ordered pairs, this is not a direct variation

2. the standard form of a polynomial is the exponents in descending order.

we have the following polynomial: 2a² - a^5 -2a³

to write it in standard form, we will go in descending order of the exponents. the largest exponent being first

-a^5 - 2a³ + 2a²

the leading coefficient of the polynomial is -1, as there is a negative sign in front of the newly formed polynomial

4 0
3 years ago
Please help me find the Measure of the arc!!
noname [10]
124 is the answer....
3 0
3 years ago
The mean salary offered to students who are graduating from Coastal State University this year is $24,245, with a standard devia
leva [86]

Answer:  The probability that the mean salary offer for these 80 students is $23,500 or less equals to 0.4054

Step-by-step explanation: Please find the attached file for the solution

5 0
3 years ago
2+2 so you can get 40 pts I need to just write 20 characters so... ndds8bdsudbsd8s shdds8sjd sudh89hd
Zanzabum

Answer:

2+2 is 4

Step-by-step explanation:

You can imagine 2 cookies and then you get 2 more which is 4.

4 0
3 years ago
Other questions:
  • A fair, six-sided die (numbered 1 to 6) is rolled eight times to form an eight-digit number. what is the probability that the re
    9·1 answer
  • Someone lives in the Northeast region and your best friend's family lives in the Midwest region so you decide to compare ratings
    11·1 answer
  • PLS HELP ASAP I WILL GIVE BRANERLIST PLUS 15 POINTS THE CHOSE ONES ARE WARMER AND COLDER BTWWWW
    9·2 answers
  • -1 3/20-2 7/20 plz show work. Negatives and positives
    10·1 answer
  • What is the length of the radius, /?<br> O 8 units<br> O 10 units<br> O 12 units<br> O 16 units
    9·1 answer
  • (0, 2) (3, 8)<br> write an equation in slope intercept form
    7·1 answer
  • Herve has 3 licorice sticks. he wants to share them equally with four other friends. which fraction of a licorice sticks should
    7·1 answer
  • 2. Given: HM = VM, and ZH and cV Triangle congruence criteria,
    5·1 answer
  • A truck takes 6 hours yo travel 623km. Calculate for the average speed​
    12·1 answer
  • HELP!<br><br> "What is Limit as x approaches negative 14p(x), if it exists?"
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!