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
andrew-mc [135]
3 years ago
6

PLEASE HELP ASAP!: Solve for a and b 6a-b=-5 4a-3b = -8

Mathematics
1 answer:
klemol [59]3 years ago
7 0

Answer:

a = -1/2

b = 2

Step-by-step explanation:

Step 1: Rewrite 1st equation

-b = -5 - 6a

b = 5 + 6a

Step 2: Substitution

4a - 3(5 + 6a) = -8

Step 3: Solve

4a - 15 - 18a = -8

-14a - 15 = -8

-14a = 7

a = -1/2

Step 4: Plug in <em>a</em> to find <em>b</em>

6(-1/2) - b = -5

-3 - b = -5

-b = -2

b = 2

You might be interested in
Don’t skip this question i have a test plz answer
Gwar [14]
Bottle A-7
Bottle B-4
6 0
2 years ago
Read 2 more answers
One tank is filling at a rate of 5 gallon per 7 hour. A second tank is 8 10
seraphim [82]

Answer:

the second one

Step-by-step explanation:

8 0
2 years ago
Simplify 6 x 10−7 2 x 105 .
mafiozo [28]

Answer:

-49

Step-by-step explanation:

it would be this because first we would have to figure out what 6*10 is that why we know what to distribute . so once we figure it out , which is 70 . We would then subtract 14 from 70 . Since 7 is right next to 2 we would then multiply it to get to 14. Once we get that you should get 56, from there you would subtract 56 to 105 , and get your answer.

7 0
3 years ago
Neeed a lot of help pls answer this pls
daser333 [38]

Answer:

32

Step-by-step explanation:

100: 25

4:1

x : 8

(8x 4) : 8

32: 8

ans 32

7 0
3 years ago
Read 2 more answers
Need pleas ok need today
Vsevolod [243]

Answer:

90

Step-by-step explanation:

You need to simply add all the given numbers together and enter the missing number that'll make the total 0. So:

-75 + (-25) = -100

-100 + 10 = -90

-90 + <u>90</u> = 0

Thus, adding a 90 in the empty box will make it 0.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Isaiah used the distributive property to find the product of four and (72)
    9·1 answer
  • I really need help with this, so could you help a little girl...?
    8·1 answer
  • Solve by elimination: 3y-4x=29<br> 2y+5=4
    11·1 answer
  • Solve the inequality c+12&lt;16
    7·1 answer
  • How many envelopes does Jane address in a day?
    13·2 answers
  • PLS!!! I NEEED HELP!!! A rectangular piece of land will be divided diagonally into 2 congruent triangular sections. One section
    11·2 answers
  • X2–6x + 10 is to be written in the form ( x +a)2+ b Find the values of a and b.
    10·1 answer
  • Can someone plss help ASAP
    6·1 answer
  • Use a protractor to draw a parallelogram that has side lengths of 8 centimeters and 6 centimeters and two adjacent angles that m
    8·1 answer
  • points E,F and G are plotted on a number line at -1, 2 and 6 respectively. Find the coordinate o f the point that represents the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!