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
erik [133]
3 years ago
10

4x+7y=2 solve for x.

Mathematics
2 answers:
Kitty [74]3 years ago
7 0

Subtract 7y7y from both sides

4x=2−7y

Divide both sides by 4

x= 2 - 7 y/ 4

     



Nady [450]3 years ago
3 0

Answer:

I got my answer in decimals

Step-by-step explanation:

First we have to get rid of our y so we divide everything by 7.

4/7=0.57

2/7=0.29

after we divide we get

<u><em>x=0.51</em></u>

You might be interested in
Graph and find solutions to x^3-x^2-2x=0
lana [24]


x =(1+√9)/2=(1+3)/2= 2.000



5 0
3 years ago
If N is a 3-digit integer, and the result of reversing the digits of N is the number M, what is the maximum value of N-M? Please
Lena [83]

Answer:

The maximum value of N-M will be 792

Step-by-step explanation:

For N - M to be maximum

N must be very large and M must be very small

largest 3 numbers occur in 900's and smallest 3 digit numbers occur in 100's

so we need such an N which starts with 9 and ends with 1 so that on reversing it produces a number starting with 1.

If N = 901 , M will be 109

N - M = 792

This is the largest possible value of N - M

All other values of N-M will give a smaller value than 792.

5 0
4 years ago
The chess clubcab have at most 36 members. The are 3 times as many boys as girls in the chess club. Which inequality could be us
grin007 [14]

Answer:

The number of girls is at most 9 girls

y ≤ 9

Step-by-step explanation:

The chess clubcab have at most 36 members.

At most means : Less than or equal to 36 members and it is represented by the inequality = ≤

The are 3 times as many boys as girls in the chess club.

Boys = x

Girls = y

Hence,

x = 3y

Which inequality could be used to determine the possible number of girls, x, in the chess club?

Therefore,

x + y≤ 36

3y + y ≤ 36

4y ≤ 36

y ≤ 36/4

y ≤ 9

Girls = y

The number of girls is at most 9 girls

3 0
3 years ago
After 24 pencil had sharpened, the pencil sharpener receptacle is full. If receptacle is emptied in average of twice a day, how
stiks02 [169]

Answer:

12 Pencils Sharpened

Step-by-step explanation:

Since the sharpener receptacle is emptied out 2 times every day.

Do 24*2 to get 48 pencils sharpened each day.

Now do 48/20 to get how many pencils a single person sharpens each day. Resulting in 2.4 pencils each day for 1 person.

Multiple 2.4 by 5 (Amount of days) to get 12 pencils in 5 days.

4 0
3 years ago
Please help me it’s due today please help me please please people help me please please
SCORPION-xisa [38]

Answer:

a) 0≠ -10

b) x= -3

c)y= 0

Step-by-step explanation:

a) 3-4x=-7-4x

3-4x=-7-4x\\Adding \ 4x \ on \ both \ sides\\3-4x+4x=-7-4x+4x\\3-0=-7\\Adding \ -3\\3-0-3=-7-3\\0\neq -10

So, this equation has no solution as both sides are not equal.

b) 15-2x=-7x

Solving:

15-2x=-7x\\Adding \ 2x \ on \ both \ sides\\15-2x+2x=-7x+2x\\15=-5x\\Divide \ both \ sides \ by -5\\x=-3

So, this equation has one solution

c) 7(y-3)=6y-21

Solving:

7(y-3)=6y-21\\7y-21=6y-21\\Adding \ -6y \ on \ both \ sides\\7y-21-6y=6y-21-6y\\y=-21+21\\y=0

So, this equation has one solution.

1. Write equation with no solution. 3-4x=-7-4x (check solution of a)

2. Write equation with one solution. 7(y-3)=6y-21 (check solution of c)

3. Write equation with infinite solution. 2x + 3 = x + x + 3

solving:

2x+3=2x+3

2x-2x+3=3

3=3

When both sides are equal, the equation has infinite solutions.

6 0
3 years ago
Other questions:
  • What is the blood type of the unknown parent?
    14·1 answer
  • A.) If log(2x + 3) -log(x - 1) = 3, then the equation in exponential form is 10^3= (2x + 3)(x - 1).
    12·1 answer
  • 2 1/2+3 3/4+1 1/2 plz hep me plz thanks you
    15·1 answer
  • a coyote can run up to 43 mph while a rabbit can run up to 35 mph. Write two equivalent expressions and then find how many more
    10·1 answer
  • I don’t understand please help!!!!
    15·1 answer
  • 1/2(-4+6n)=1/3n+2/3(n+9)
    13·2 answers
  • Im struggling on this problem i need help if you know (-x+3)-(x-5) PLEASE show THE WORK
    11·1 answer
  • If the binomial 2x+8 was multiplied by 5 the result would be equivalent to
    13·1 answer
  • Sarah's English assignment is
    5·2 answers
  • HELPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!