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
mr_godi [17]
3 years ago
6

Tell whether the ordered pair is a solution of the system of equations.

Mathematics
1 answer:
katovenus [111]3 years ago
8 0

Answer:

2x + y = 5

y = 4x – 1

Substitute (2, 1) into system, then:

2x + y = 5  => 2 x 2 + 1 = 5 => 5 = 5 (satisfied)

y = 4x– 1   => 4 x 2 - 1 = 1  => -7 = 1 (not satisfied)

=> Option 3 is correct.

Hope this helps!

:)

You might be interested in
What else can the radio 4/5 be written
UNO [17]
4/5 4:5 4 to5  8 to 10 8/10 8:10
4 0
3 years ago
You and your friends have decided to camp for a night. Your friend claims the area of his tent is 408 m2. Work out the area of h
slamgirl [31]
We know that
area of the tent=length*breath
length=240 cm---convert to m---> 240/100----> 2.40 m
breath=170 cm----convert to m---> 170/100----> 1.70 m

find the area
area=2.40*1.70-----> area=4.08 m²

therefore

the answer is
<span>the friend's statement is incorrect the area is 4.08 m</span>²
6 0
3 years ago
Read 2 more answers
17/21- (3/7 + 2/7) please answer quick
adoni [48]

Answer:

2/21

Step-by-step explanation:

17/21 -(3/7 + 2/7)

First you add

=17/21 - (5/7)

Then you want to subtract

=2/21

8 0
3 years ago
Add (3x4−2x3+4x−2) and (3x3−2x2−x+4). Question 2 options:
Natalka [10]

Answer: 3x^4 +x^3 -2x^2 +3x +2

Step-by-step explanation:

(3x^4 - 2x^3 + 4x -2) + (3x^3 - 2x^2 - x +4)

There are no like terms for 3x^4, so leave it alone.

-2x^3 + 3x^3 = 1x^3

No like terms for -2x^2

4x - x = 3x

-2 + 4 = 2

Answer? 3x^4 +x^3 -2x^2 +3x +2

(Please mark brainliest! :) )

5 0
3 years ago
Read 2 more answers
Mary weighs n kg while her sister weighs 15 kg less. How many times is Mary heavier than her sister?
kari74 [83]

Answer:

Mary is  \frac{n}{n-15}  times heavier than her sister

Step-by-step explanation:

Mary's Weight = n

Sister's Weight = n - 15

To find how many times mary is heavier, we need to multiply "that many time" [let it be x] with sister's weight to get Mary's weight.

<u>e.g. </u>If someone weighs 100 and another person 50, 50 * 2 = 100, thus, 100 kg person is 2 times heaving. We do same for this:

(n - 15) * x = n

x = n/(n - 15)

3 0
3 years ago
Read 2 more answers
Other questions:
  • Are the ratio 7/15 equal to 21/45 goe
    10·1 answer
  • an exterminator must treat the perimeter of a house for insects if the house is 90 feet long and 30 feet wide what is the total
    8·1 answer
  • What is 2 1/6 - 1 2/7= write in simplest form. Show steps
    15·1 answer
  • The law of conversation of momentum explains that the momentum after a collision is?
    7·1 answer
  • <img src="https://tex.z-dn.net/?f=3x%20%2B%207%20%3D%2013" id="TexFormula1" title="3x + 7 = 13" alt="3x + 7 = 13" align="absmidd
    15·2 answers
  • Which point is a reflection of Z(5 1/2,3) across the y axis
    12·1 answer
  • What fraction of a year are 31 days ?
    10·1 answer
  • Find the area and perimeter
    14·2 answers
  • Find the slope giving brainlest
    10·1 answer
  • An airplane is 275 miles from the airport to get to it present position the plane flew 125 miles due south from the airport and
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!