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
sergey [27]
3 years ago
11

Solving systems of equations with substitution: y= 2x-4 y= -x+5help please!

Mathematics
1 answer:
Furkat [3]3 years ago
4 0
<span>y= 2x-4 
y= -x+5
so

</span><span>2x-4 = -x+5
2x +x = 5 +4
3x = 9
x =3

y = 2x-4
y =2(3) - 4
y = 6-4
y = 2

answer: (3,2)</span>
You might be interested in
Q3. If I = (P × R × T)/100, find T if I = 80 Rs, P = 400 Rs., R = 10 Rs. (2)
sukhopar [10]

9514 1404 393

Answer:

  T = 2

Step-by-step explanation:

Fill in the given numbers and solve for T.

  I = PRT/100

  80 = 400·10·T/100

  80 = 40T . . . . . . . . . . . . simplify

  80/40 = T = 2 . . . . . . . . divide by the coefficient of T

4 0
3 years ago
Read 2 more answers
The equivalent ratios show how many teaspoons there are in 5 cups. What method can be used to convert 1 cup to teaspoons? multip
Rasek [7]

Answer: D. Divide 5 by 1,200

Step-by-step explanation:

I know the answer

3 0
3 years ago
Read 2 more answers
Prove that√P is irrational for any prime number P​
Luda [366]

Answer:

Step-by-step explanation:

I’m not sure if this is super accurate, but since P is prime, the only factors it has is 1 and itself, meaning that the square root of it will be irrational

3 0
3 years ago
Q: An experiment was conducted to study the effect of increasing the dosage of a certain barbiturate on sleeping
aleksklad [387]

Answer:

Step-by-step explanation:

5 0
3 years ago
Let D = {-48, -14, -8, 0, 1, 3, 16, 23, 26, 32, 36} Determine which of the following statements are true and which are false. a)
morpeh [17]

Answer:

\forall x\in D if x is odd then x> 0 is true statement.

\forall x\in D if x is odd then x> 0 is true statement.

\forall x\in D if x is even then x≤0 is false statement.

\forall x\in D If the ones digit of x is 2, then the tens digit is 3 or 4 is true statement.

\forall x\in D if the ones digit of x is 6, then the tens digit is 1 or 2 is false statement.

Step-by-step explanation:

Consider the provided information.

D = {-48, -14, -8, 0, 1, 3, 16, 23, 26, 32, 36}

Part (A) \forall x\in D if x is odd then x> 0

Here only even numbers are less than 0 that means the statement is true.

\forall x\in D if x is odd then x> 0 is true statement.

Part (B) \forall x\in D if x is less than 0 then x is even.

Here only even numbers are less than 0 that means the statement is true.

\forall x\in D if x is odd then x> 0 is true statement.

Part (C) \forall x\in D if x is even then x≤0

Here we can see that 16, 26, 32, 36 are even number and also greater than 0. Thus the statement is false.

\forall x\in D if x is even then x≤0 is false statement.

Part (D) \forall x\in D If the ones digit of x is 2, then the tens digit is 3 or 4.

There is only one number whose ones digit is 2. i.e. 32 also the tens digit of the number 32 is 3. Which makes the above statement true.

\forall x\in D If the ones digit of x is 2, then the tens digit is 3 or 4 is true statement.

Part (E) \forall x\in D if the ones digit of x is 6, then the tens digit is 1 or 2.

Numbers having ones digit 6 are: 16, 26 and 36

Here, the tens digits are 1, 2 and 3 which is contradict to our statement. Hence the provided statement is false.

\forall x\in D if the ones digit of x is 6, then the tens digit is 1 or 2 is false statement.

8 0
3 years ago
Other questions:
  • Please answer number 8
    12·2 answers
  • 275.9 × 10−4 in standard form
    8·2 answers
  • Helena makes an 8% commission on any artwork she sells. If she sells $125 worth of artwork, how much is her commission.
    15·1 answer
  • The canopy of a parachute is a semicircle with a radius of 13 feet. A company that is making parachutes for a Fourth of July cel
    14·2 answers
  • How do i find the scale factor on a graph?
    9·1 answer
  • Triangles DEF and D'E'F' are shown on the coordinate plane below:
    12·2 answers
  • Cody's Bikes rents bikes for $18 plus $5 per hour. Mofor paid $48 to rent a bike. For how many hours did he rent the bike? _
    6·1 answer
  • A scale on a hiking map shows that 3 inches represents 1.25, miles.
    9·1 answer
  • Quadrilaterals and other polygons
    14·2 answers
  • Help please and explain this for me please thanks
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!