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
nekit [7.7K]
3 years ago
10

Y=-3x+3 Y=5x+19 Solve this system by substitution

Mathematics
2 answers:
Mars2501 [29]3 years ago
5 0

Answer:

x=-2

Step-by-step explanation:

You can substitute the first equation into the second:

-3x+3=5x+19

Add 3x on both sides:

3=8x+19

Subtract 19 on both sides:

-16=8x

Divide 8 on both sides:

x=-2

dsp733 years ago
5 0

Answer:

x = -2

y = 9

Step-by-step explanation:

to evaluate this system of equation we would say that

let

Y=-3x+3................................................. equation 1

Y=5x+19................................................... equation2

substitute equation 2 into equation 1

5x + 19 = -3x + 3

collect the like terms together

5x + 3x = 3 -19

8x = -16

divide both sides by the coefficient of x which is 8

8x/8 = -16/8

x = -2

put x = -8 into equation 1

Y=-3x+3................................................. equation 1

y = -3(-2) + 3

y = 6 + 3

y = 9

therefore the value of x and y is -2 and 9 respectively.

You might be interested in
A popular brand of pen is available in 13 colors and 2 writing tips. How many different choices of pens do you have with this br
mixas84 [53]

Answer:

7

Step-by-step explanation:

i had it

6 0
3 years ago
one estimate for the rate at which natural process can replace topsoil that has been eroded is about 2 millimeters per year at t
bulgar [2K]

Answer:

50 years

Step-by-step explanation:

First convert millimeters to centimeters. 2 millimeters is equivalent to 0.2 centimeters. Then divide 10 by 0.2. Answer should be 50

7 0
3 years ago
1. To the nearest whole degree, what angle measure has a sine of 0.6123?
o-na [289]
<span>This question requests to find the inverse function of sine function. The inverse function of sine function is called arc sine. This is, the arc length whose sine is the value searched. Then you need to find the arc sin (0.6123). the result may be in radians or degrees. Only in some particular cases you can tell the arc sine without a calculator or table, it is when the sine value is a notable number (e.g. 0, 1, -1, or some others) In this case you need to use a calculator or table. With a scientific calculator make sure the mode is in degrees and then enter the number 0.6123. With that numbered entered now press the key sin^-1, which is the key for the inverse of the sine function. I did it and got 37.76 degrees. Rounded to the nearest whole degree that is 38. Then, the answer is 38 degrees. </span>
4 0
3 years ago
The function N(t)=300/(1+299e^-0.36t) describes the spread of a rumor among a group of people who have heard the rumor, and (t)
Delvig [45]
A ) The rate at which rumor spreads speed up over time. If t increases, also N(t) increases, because 300 is divided by the smaller number.( Correct )B ) 1 = 300 / ( 1 + 299 · e^(-0.36 · 0 ) ) 1 = 300 / ( 1 + 299 · 1 ) 1 = 300 / 3001 = 1  ( Correct )C ) 100 = 300 / ( 1 + 299 · e^(-0.36 · 14 ) )100 = 300 / ( 1 + 299 · 1/154.47 )100 = 300 / 2.93565100 ≈ 102.192        ( Correct ) - approx. 14 minutes
D ) N = 300 / ( 1 + 299 · e^(-∞) )N = 300 / ( 1 + 299 · 0 ) N = 300 / 1 = 300299 people are enclosed space ( Not correct )Answer:True statements are: A ) ,  B )  and  C ) .

6 0
3 years ago
Who invented the square root of negative one?
telo118 [61]
I believe it would be jack Dorsey and jim Mckelvey since they were the ones who made the perfect square
6 0
4 years ago
Other questions:
  • Why did the chicken hit her egg with an ax worksheet answers
    6·2 answers
  • A mixture of 17 %disinfectant solution is to be made from 10% and 20% disinfectant solution. How much of each solution should be
    7·1 answer
  • Maria earned $126 in simple interest from her savings account. If she invested $450 for 7 years what was the interest rate?
    8·1 answer
  • Solve for the value of x
    10·2 answers
  • TIMED i also really need help with this one PLEASE
    8·1 answer
  • (ASAP WORTH 10 POINTS) Marcus loves baseball and wants to create a home plate for his house. Marcus needs to calculate the area
    8·2 answers
  • Solution to system of equations
    15·1 answer
  • HELP PLEASE
    12·1 answer
  • (SAT prep)Find the value of x<br> Please help me!
    8·2 answers
  • Enter the number that belongs in the green box (please enter both numbers for the empty boxes)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!