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
JulsSmile [24]
3 years ago
12

Can some explain me how to find the answers

Mathematics
2 answers:
Elanso [62]3 years ago
4 0
(a) r = the weight of Rajesh's package and m = the weight of Mohib's package:

r = 2m + 3
r + m = 15

(b) The easiest way to solve this equation would be to use substitution.  The first equation says that r is equal to "2m + 3", so we can plug 2m + 3 in for the r in the second equation, and then solve for m:

r+m=15\(2m+3)+m=15\3m+3=15\3m=12\m=4

Now that we have m, we can plug it into one of the equations to find r:

r=2m+3\r=2(4)+3\r=8+3\r=11

So, the weight of Rajesh's package is 11 pounds, and the weight of Mohib's package is 4 pounds.  This makes sense because both of these add up to 15 and Rajesh's package is three more than two times the weight of Mohib's package, as described in the question.

(c) Mohib's graph is the correct graph because it intersects at the correct point (4 on the Mohib axis and 11 on the Rajesh axis).  The other graph shows the intersection of the two lines at the wrong point, giving the wrong weights of the two packages.
Svetlanka [38]3 years ago
4 0
What textbook and pg # is this? I wanna be able to practice
You might be interested in
2x-y+3x=. when y is 4 and x is 3.
Gelneren [198K]

2 x 3 - 4 + 3 x 3 = 11

Do PEMDAS.

Parenthesis

Exponents

Multiplication

Addition

Subtraction

3 0
3 years ago
Read 2 more answers
Help plsss 20+ pointsss
Lena [83]

Answer:

3

Step-by-step explanation:

area of square=l*b so

81=3x multiply 3x

81=9x^2

81/9=x^2

9=x^2

\sqrt9=x

3=x

4 0
3 years ago
it costs 9.50 to enter wild life safari, 5$ for a bag of food, 3$ for a pop, 4$ for a sandwich, and 26$ for a photo. if a family
vagabundo [1.1K]

Answer:

$210

Step-by-step explanation:

9.50*4=    38

5*2=10*4=40

3*4=          12

4*4=          16

26*4=    +104

             ---------

               210

8 0
2 years ago
Read 2 more answers
The height in meters of a rocket launched from the ground after t seconds is modeled by h(t)=-9.8r^2+49t. Graph a graph represen
Darina [25.2K]
9.8t^2-49t+40=0

t=(49±√833)/19.6

t≈1.027, 3.97

1.027<t<3.97
7 0
3 years ago
Read 2 more answers
A. the first hour to the second hour
Solnce55 [7]

Answer:

6-8

Step-by-step explanation:

The distance the biker traveled was greater in a shorter period of time than in other parts of the graph. *it has a greater slope (mention this as well ig)

8 0
3 years ago
Other questions:
  • Which expression is equivelent to the given expression
    8·2 answers
  • Identify any extraneous solution. See above pic
    8·2 answers
  • What is the vertex of f(x) = |x + 8| – 3?
    15·1 answer
  • A police officer investigating an accident finds a skid mark of 115 ft in length. How fast was the car going when the driver app
    11·1 answer
  • The temperature overnight in Sitka, Alaska was 12 below zero. How should this be written?
    6·1 answer
  • A mom mixes 9 ounces of juice with 3 ounces of water. What present of the drank is juice?
    12·2 answers
  • 3/2x3/4= -1/5<br><br> uh i need help
    5·2 answers
  • Help ur bestie out plzzz (puppy eyes) and show me how u got the answer thx
    11·1 answer
  • Which is a pair of vertical angles?
    6·1 answer
  • keisha made $396 for 18 hours of work at the same rate how many hours would she have to work to make the 242
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!