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
ella [17]
3 years ago
5

If -2x+3=7 and 3x+1= 5+y

Mathematics
2 answers:
sertanlavr [38]3 years ago
7 0

Answer: x = -2, y = -10

Step-by-step explanation:

solve for x first in the equation -2x+3=7

-2x+3=7

-2x = 4

x = -2

now plug that x value into the other equation so we can find y

3x+1 = 5+y

3(-2)+1 = 5+y

-6+1 = 5+y

-5=5+y

-10 = y

maria [59]3 years ago
5 0

Step-by-step explanation:

-2X+3=7

-2X= 7--3

X=-2

2nd equation

3(-2) +1= 5+y

y= -10

You might be interested in
Is 28 a solution to the inequality you wrote in Exercise 3? How do you know?
Evgen [1.6K]

Answer:

Yes

Step-by-step explanation:

s<30

Put in 28 for s

28<30

Twenty eight is less than 30 so it is a solution

6 0
3 years ago
RSM HOMEWORK HELP!!! PLEASE HELP ME ASAP!!
frutty [35]

Answer:

x = 27

Step-by-step explanation:

AC // DE

m∠ABD ≅ m∠BDE = 72°

m∠ADB + m∠BDE + m∠EDF = 180°

2x + 72° + 2x = 180°

4x = 108°

x = 27°

4 0
3 years ago
In 2000 the total amount of gamma ray bursts was recorded at 6.4 million for a city. In 2005, the same survey was made and the t
ratelena [41]

Let's assume

It started in 2000

so, t=0 in 2000

P_0=6.4million

we can use formula

P(t)=P_0 e^{rt}

we can plug value

P(t)=6.4 e^{rt}

In 2005, the same survey was made and the total amount of gamma ray bursts was 7.3 million

so, at t=2005-2000=5

P(t)=7.3 million

we can plug value and then we can solve for r

7.3=6.4 e^{r*5}

r=0.02632

now, we can plug back

P(t)=6.4 e^{0.02632t}

now, we have

P(t)=1 billion =1000 million

so, we can set it and then we can solve for t

1000=6.4 e^{0.02632t}

t=191.924

approximately

t=192

Year is 2000+192

year is 2192................Answer

4 0
3 years ago
The height and diameter of a cone-shaped storage tank are 9 feet (height) and 14 feet
lana [24]

Answer: 461.60 is the volume of liquid the tank can hold.

Step-by-step explanation:

We were given;

Height H = 9 ft

Diameter D = 14 ft

Pie π = 3.14

We will make use the formula of volume of a cone to get volume of water the tank can hold because it is said that the tank is in the shape of a cone

So

V = 1/3 * πr2h

First we need to find our radius r

Radius = 1/2 of diameter = 14/2 = 7

So using the formula

V = 1/3 * πr2h

V = 1/3 (3.14 * 7² * 9)

V = (3.14 * 49 * 9)/3

V = 1384.74 / 3

V = 461.58 = 461.60 (nearest ten)

3 0
3 years ago
What I Can Do
tankabanditka [31]

Answer:

10

5Stetpplanation:

8 0
3 years ago
Other questions:
  • What is 3/5 written as a decimal?<br><br><br> 0.12<br><br> 0.3<br><br> 0.6<br><br> 1.67
    10·2 answers
  • carlos lives 100m away from his friend's home what is his average speed if he reaches his friend's home in 50s
    11·1 answer
  • Write the inverse function for the function, ƒ(x) = 1/2x + 4. Then, find the value of ƒ -1(4). Type your answers in the box. ƒ -
    13·1 answer
  • Multiply 5c^3d(3c^4d^5+5cd^5+3cdg)
    7·1 answer
  • What is the sum of -5 + (-3)​
    11·2 answers
  • Y=x-8 y=-2x+1 how do you solve the system of equation
    5·1 answer
  • What is the difference between these two expressions?
    9·2 answers
  • Given ΔADC and ΔAEB, What is AE?
    11·1 answer
  • Very hard problem someone help
    11·1 answer
  • Patrick is an electrical engineer who is testing the voltage of a circuit given a certain current and resistance. He uses the fo
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!