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
Ksivusya [100]
3 years ago
15

Solve the system by substitution

Mathematics
1 answer:
Vikentia [17]3 years ago
3 0

Answer:

I think its:

Q1= x=(9+y)/2

Q2= x=(-20-6xy)/4

Step-by-step explanation:

Q1)

X-y=9

2x-y=9

2x=9+y

x=(9+y)/2

Q2)

4x-2y=-20

4x-2(-3x)=-20

4x+6xy=-20

4x=-20-6xy

x=(-20-6xy)/4

You might be interested in
F=1/2kp, solve for k
Norma-Jean [14]
F = 1/2kp....multiply both sides by 2, eliminating the 1/2
2F = kp...now divide both sides by p
(2F/p) = k
5 0
3 years ago
In cos(0.3), what unit would 0.3 be? Is it radians? Also if you were to solve it, would the answer be in radians as well? Please
neonofarm [45]

Answer:

22

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Convert 99 degrees Fahrenheit to celsuis
Leona [35]
(99°F − 32) × 5/9 = 37.222°C
so the answer is 37.222°, or 37°
8 0
4 years ago
calculate the following showing populations the temperature in Johannesburg was 15° it drastically decreased by 17 °c what is th
rusak2 [61]

Answer:

-2 degrees Celsius.

Step-by-step explanation:

15 - 17 = -2

8 0
3 years ago
Read 2 more answers
A culture of 1.08×1015 bacteria is in petri dish A. A culture of 2.7×1011 bacteria is in petri dish B.
dalvyx [7]
<span> 1.08×10^15
------------------ = 0.4 x 10^4 = 4000
</span><span> 2.7×10^11

answer
4000 times greater</span>
3 0
3 years ago
Read 2 more answers
Other questions:
  • 11) The Cost of maintaing a
    13·1 answer
  • Determine whether you can construct many, one , or no triangle(s) with the given description:
    13·1 answer
  • Round 223 to the nearest 10
    13·1 answer
  • If the working age population is 250 million, 170 million are employed and 9 million are unemployed, the unemployment rate is
    12·2 answers
  • 14-liter minus 9500 millimeter
    8·2 answers
  • Marnie packed 18 boxes in 3 hours, which was 72% of the total number of boxes she had to pack. How many boxes did Marnie have to
    10·2 answers
  • Please answer fast!!! Will give brainliest!!!<br><br>given: m∠EYL= 1/3 m arc EHL Find: m∠EYL.
    6·1 answer
  • Someone tell me the slope
    5·1 answer
  • Find the selling price for the item flash drive: $12 markup:35%​
    15·1 answer
  • What's the simplified version?​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!