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
VLD [36.1K]
3 years ago
12

Two equations are given below:

Mathematics
1 answer:
astraxan [27]3 years ago
4 0
A - 3b = 4
a = b -2

(b - 2) - 3b = 4
b - 2 - 3b = 4
-2b = 4 + 2
-2b = 6
b = 6/-2
b = -3

a = b - 2
a = -3 -2
a = -5

to check: a = -5 ; b = -3  
⇒ (-5,-3)
a - 3b = 4
-5 - 3(-3) = 4
-5 + 9 = 4
4 = 4
You might be interested in
Efectúa la siguientes operaciones 3254+535​
fredd [130]

Answer:

3789

Step-by-step explanation:

3 0
2 years ago
There are 640 apples in the box if 20% of apples are found to be rotten . How many are good apples ?​
Whitepunk [10]
640x.2=128
640-128=512
6 0
3 years ago
Need help please thanks you
Nataly [62]
A + C = 90/190

B + D = 100/190

Therefore answer is H
4 0
3 years ago
How many sides do 4 pentagons and 3 nonagons have in all?
Alja [10]

Answer:

47

Step-by-step explanation:

^

6 0
3 years ago
On his drive from Montpelier, Vermont, to Columbia, South Carolina, Arthur averaged 51 mph. If he had been able to average 60 mp
Llana [10]

Answer:

Distance between Montpelier and Columbia is 1020

Step-by-step explanation:

51 mi/hr average:

d = 51 t  

60 mi/hr average:

d t = 60*(t-3)

Substitute (1) into (2)  

   51 t =  60*(t-3)

   51 t =  60 t + 180

   9 t  =  180

   t    =   20

d = 51 t

   = 51 (20)

   = 1020

let see distance is 1020 lets check

51 t = 60 * (t-3)

51 (20)= 60* (20-3)

1020   = 60*17

1020 = 1020

4 0
3 years ago
Other questions:
  • Help!!! Pls!!!! :) i dont know
    15·1 answer
  • If r = 12, what is the value of t?
    12·2 answers
  • What do I do in this question
    9·1 answer
  • 9 x 27 + 2 x 31 - 28 = n
    13·1 answer
  • A survey of an urban university (with a finite population of 25,450) showed that 750 of 1,100 students sampled attended a home f
    11·1 answer
  • What is 2/5 minus 3/5
    7·2 answers
  • Is 9,783,005 divisible by 3?
    5·1 answer
  • Hey Guys!
    11·2 answers
  • 11 3/4 in absolute value Answer quick!
    7·1 answer
  • Work out the bearing of B from A. I really need help with this.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!