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
nika2105 [10]
3 years ago
13

What is 2a+3b=5 B=a-5?

Mathematics
1 answer:
galben [10]3 years ago
4 0

Answer:

a = 4

Step-by-step explanation:

Plug in the b-value which is a-5 into the equation to make it look like this, 2a + 3(a - 5) = 5.  Then, distribute 3 into a - 5 to get 3a - 15 when expanded.  Combine the two like terms 2a and 3a to get 5a.  Then, add 15 on both sides to get to this equation which is 5a = 20.  Divide 5 on both sides to get your a-value which is 4.

You might be interested in
What is the equation of the line passing through the points (Two-fifths, StartFraction 19 Over 20 EndFraction) and (one-third, S
Neporo4naja [7]

Answer:

  y = one-half x + three-fourths

Step-by-step explanation:

The 2-point form of the equation of a line can be used for starters.

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  y = (11/12 -19/20)/(1/3 -2/5)(x -2/5) +19/20 . . . . fill in given values

  y = ((55 -57)/60)/((5 -6)/15)(x -8/20) +19/20 . . simplify a little

  y = (-1/30)/(-2/30)(x -8/20) +19/20 . . . . . . . . . . and a little more ...

  y = 1/2x -4/20 +19/20

  y = 1/2x +15/20

  y = 1/2x +3/4 . . . . line in slope-intercept form

8 0
3 years ago
Read 2 more answers
What is the equation 9+10​
Aliun [14]
9+10=19 it’s an addition problem and the sum is 19
3 0
3 years ago
Read 2 more answers
-7-5x+5x+7 simplified​
AysviL [449]

Answer:

0

Step-by-step explanation:

adding -7 to 7, since they are both constants (no variable) gives you 0. Adding -5x and 5x since they both have an x term gives you 0x also written as 0 (0*any number is 0). this gives you a final answer of 0

4 0
3 years ago
Read 2 more answers
The graphs below have the same shape. What is the equation of the blue graph?
Radda [10]

Answer:

B

Step-by-step explanation:

Given f(x) then f(x + a) is a horizontal translation of f(x)

• If a > 0 then a shift to the left of a units

• If a < 0 then a shift to the right of a units

Given f(x) then f(x) + c is a vertical translation of f(x)

• If c > 0 then a shift up of c units

• If c < 0 then a shift down of c units

g(x) is f(x) shifted 3 units right and 1 unit up , then

g(x) = (x - 3)² + 1 → B

3 0
3 years ago
Read 2 more answers
7th grade math help me plzzzzzzz
Alex17521 [72]

Answer:

1. -60

2. 32

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Which are the solutions of x2 = –5x + 8? StartFraction negative 5 minus StartRoot 57 EndRoot Over 2 EndFraction comma StartFract
    8·2 answers
  • You are in charge of finding a venue for a concert. With the average square feet per
    5·1 answer
  • Show how you can use repeated subtraction to find 84 divided by 6\
    6·2 answers
  • If the family spent 151 dollars then how many people went?​
    5·1 answer
  • What times what equals 12 but when you add those numbers together it equals 3
    12·1 answer
  • How many times does 44 go into 1146
    8·2 answers
  • Solve each system by substitution. Show work please.
    6·1 answer
  • Kendra is considering enrolling in two acting schools. One school requires a registration fee of $75 and charges $18 per class.
    7·1 answer
  • Simplify:
    12·1 answer
  • Asha made 15 sandwiches. 6 were cheese, and the rest were peanut butter. How many peanut butter Sandwiches did Asha make?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!