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
SIZIF [17.4K]
4 years ago
9

If a+3b=13 and a+b=5 the value of b is

Mathematics
1 answer:
AlladinOne [14]4 years ago
6 0

Answer:

b = 4

Step-by-step explanation:

a + 3b = 13

a + b = 5 .....multiply by -1

=============

a + 3b = 13

-a - b = -5 (result of multiplying by -1)

=============add

2b = 8

b = 8/2

b = 4 <====

a + b = 5

a + 4 = 5

a = 5 - 4

a = 1

You might be interested in
A television production company charges $22001 for 3 hours of work and $40574 for 7 hours of work. Find the hourly rate.
masha68 [24]
It might be 21 hours
3 0
4 years ago
Read 2 more answers
The number -5 is all exept for
nikklg [1K]
Even, positive, prime number I think that’s it
4 0
3 years ago
5(6-3)=6+3 show ur work
Alex

Answer:

No Solution

Step-by-step explanation:

Simplify  6−3  to  3.

5×3=6+3

Simplify 5×3  to 15.

15=6+3

Simplify  6+3 to 9.

15=9

Since 15=9 is false, there is no solution.

<em>No Solution </em>

6 0
3 years ago
Read 2 more answers
Determine the length the 6 meter side and the 12 meter side will be in the drawing.
vladimir2022 [97]

Answer:

x=2,x=4

So, the 6-meter side will be 2 centimeters and the 12-meter side will be 4 centimeters in the drawing.

Step-by-step explanation:

Solve for x by using cross multiplication

6=3x

x=2

12=3x

x=4

8 0
3 years ago
How do you find the intersection of two sets?
Vlad [161]
To find the intersection<span> of these </span>two sets<span>, we need to find out what elements they have in common. The numbers 3, 4, 5 are elements of both </span>sets, therefore theintersections<span> of A and B is {3. 4. 5].</span>
3 0
3 years ago
Other questions:
  • T+7/5 = -4 What does t=
    15·1 answer
  • Which property of equality could be used to solve -3x = 348? A. addition property B. subtraction property C. division property D
    14·1 answer
  • Serenity has some pennies and some nickels. She has no less than 18 coins worth at most $0.66 combined. If Serenity has 12 penni
    10·1 answer
  • Solve y=<img src="https://tex.z-dn.net/?f=%5Cfrac%7B5x-3%7D%7B2x%2B1%7D" id="TexFormula1" title="\frac{5x-3}{2x+1}" alt="\frac{5
    5·1 answer
  • Which of the following is the correct factorization of the trinomial below?<br> -7x2 - 4x + 20
    10·1 answer
  • I need the answer ASAP
    15·1 answer
  • I need some helppppppppp
    6·2 answers
  • Josephine wrote the numbers 1-100 and placed them in a bag. If she selects a number without looking, what is the probability tha
    13·1 answer
  • (1,9),(0,6) find the slope
    6·2 answers
  • Which operation do you perform first in this problem? 4/2(3)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!