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
Alex Ar [27]
3 years ago
8

3x - 4y = 7

Mathematics
2 answers:
Alina [70]3 years ago
4 0
      3x - 4y = 7
    -(3x + 2y = -5)

=     0 - 6y = 12
          -6y = 12
             y = -2
The resulting equation would be y = -2.

Alinara [238K]3 years ago
3 0

Answer:

the answer is -6y =12

Step-by-step explanation:

You might be interested in
The model below is used to represent the area of a<br> square with a side length of /64 units.
Oxana [17]
8. Hope this helpsssss
5 0
3 years ago
Read 2 more answers
What is the value of (-0.4)^3
Fittoniya [83]

Answer:

-(2/5)^3 or -8/125 or -0.064

Step-by-step explanation:

convert the decimal into a fraction

then use your calculator to find the exact answer

6 0
3 years ago
Read 2 more answers
If 12 workers can dig a tunnel in 100 days, how long will it take 20 workers to dig the tunnel
Paraphin [41]

Answer:

60 days.

Step-by-step explanation:

This is  a proportion question. You compare two ratios. Unfortunately it is an inverse ratio.

12 = k/100                   Multiply both sides by 100

1200 = k

20 = k/x                       Multiply both sides by x

20x = k

20x = 1200                 Divide by 20

20x/20 = 1200/20

x = 60 days.  

An inverse proportion works by making a constant k. The  constant k makes the days shorter when the number of people increases. You should expect that. More people , less time.

3 0
2 years ago
2D - 5F = 30 <br><br> Solve for F
Allushta [10]

Answer:

F = -6 + 2d/5

Step-by-step explanation:

2d-5f=30

subract 2D from each side

-5f=30-2d

divide both sides by -5

f= -6 +2d/5

5 0
3 years ago
Read 2 more answers
SOMEONE PLEASE HELP ME
NemiM [27]

Answer:

1) b⁵⁴

2) 7⁷

Step-by-step explanation:

When you have an exponent raised to an exponent, like in #1, you simply multiply the exponents.

When you are dividing two numbers with exponents and they have the same base, like in #2, you subtract the denominator exponent from the numerator exponent.

7 0
3 years ago
Other questions:
  • Helena lost her marbles. But then she found them and put them in 4 bags with m marbles in each bag. She had 3 marbles left over
    13·1 answer
  • Find the product, give an answer in standerd form <br> (3x2+6x+2)(2x2-8+1)
    5·1 answer
  • Hakim was feeling adventurous at lunch. Rather than choosing a single drink, he decided to
    13·1 answer
  • What expression can be used to determine the total cost of buying c pounds of cashews for $3.85
    14·1 answer
  • Solve: 3,125 = 5^-10 + 3x DONE<br>​
    13·1 answer
  • A triangle has a perimeter represented by the expression 9x + 7
    12·1 answer
  • An integer is between -4 and -19. It is twice as far from -4 as it is from -19. What is the integer? SHOW ALL YOUR STEPS**
    8·2 answers
  • What is the answer to y=6x−8 y=−3x+10 as an ordered pair
    10·1 answer
  • Please solve soon I need this problem solved or I will miss out on a Christmas party with my friends.
    8·2 answers
  • Can you help me find the answer quick
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!