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
Naily [24]
3 years ago
10

What is the value of x in the equation 1/5x - 2/3y =30 when y =15 ?

Mathematics
2 answers:
SpyIntel [72]3 years ago
4 0
Solve for x:
x/5 - 10 = 30
Put each term in x/5 - 10 over the common denominator 5: x/5 - 10 = x/5 - (50)/5:
x/5 - (50)/5 = 30
x/5 - (50)/5 = (x - 50)/5:
(x - 50)/5 = 30
Multiply both sides of (x - 50)/5 = 30 by 5:
(5 (x - 50))/5 = 5×30
(5 (x - 50))/5 = 5/5×(x - 50) = x - 50:
x - 50 = 5×30
5×30 = 150:
x - 50 = 150
Add 50 to both sides:
x + (50 - 50) = 50 + 150
50 - 50 = 0:
x = 150 + 50
150 + 50 = 200:
Answer:  x = 200
hichkok12 [17]3 years ago
4 0
\frac{1}{5} *x- \frac{2}{3} *y=30

x/5 - 2*15/3=30

x/5 - 30/3 = 30

x/5 - 10 = 30

x/5 = 40

x = 40 x 5

x = 200
You might be interested in
your car weighs 7,630 pounds. There is a road safety fee for cars. you fee is $28 plus $0.023 per pound. What is the fee for you
rusak2 [61]

Answer:

Step-by-step explanation:

7630 x .023 = 175.49

175.49 + 28 = $203.49

3 0
3 years ago
Arthur drops a ball from a height of 81 feet above the ground. Its height, h, is given by the equation h = –16t2 + 81, where t i
Lorico [155]

Answer:

Step-by-step explanation:

We are given the position function and need to find the value of t when h<17.

Create an inequality that represents this situation:

-16t^2+81 The "less than" sign makes this very specifically a conjunction problem as opposed to a disjunction. That's important to the solution. But we'll get there.

The simplest way to solve this is to subtract 81 from both sides:

-16t^2 then divide both sides by -16:

t^2>4 Notice now that the sign is facing the other way since we had to divide by a negative number. Now it's a disjunction. The solution set to this inequality is that t>2 or t<-2. First and foremost, time will never be negative, so we can disregard the -2. Even if that was t<2, the more time that goes by, the greater the time interval is, not the lesser. It's the "<" that doesn't make sense, not only the -2. The solution to this inequality is

t > 2 sec. That means that after 2 seconds, the height of the ball is less than 17 feet.

6 0
3 years ago
Read 2 more answers
Long division 9 divided by 917
Olenka [21]
00.98 in your answer
8 0
3 years ago
Read 2 more answers
List all of the factors of 24
vova2212 [387]
1,2,3,,4,6,8,12,24 are the factors of 24
4 0
3 years ago
Read 2 more answers
I NEED THIS FOR MY TEST ASAP!
Reptile [31]

Answer:

-1

Step-by-step explanation:

2(.5n-3)=n-0.25(12-12n)

first you distribute whatever is on the outside of the parenthesis to the inside of the parenthesis

1n-6=n-3+3n

then you combine like terms and end up with

1n-6=-3+4n

add 6 to each side to get

n=3+4n

subtract 4n from each side to get

-3n=3

divide -3 from each side to get

n=-1

4 0
3 years ago
Other questions:
  • Janie has $180. She spends 50% of her money on a new pair of ice skates. How much does she spend on ice skates?
    14·2 answers
  • Your bank account has -15 in it. You deposit $7 per day. (a) How much money is in your account after 5 days? Show your work. (b)
    7·2 answers
  • In 1980, there were 67 new productions on Broadway. In 1987, there were 31 new productions on Broadway. Find the average rate of
    12·2 answers
  • Can you explain these words Rate, Per, Divide, Unit and the connections you see between them. Thank you very kind!!!
    7·1 answer
  • One third of a birds eggs hatched. If 2 eggs hatched, how many eggs did the bird lay?
    13·2 answers
  • Bus A and Bus B leave the bus depot at 9 am. Bus A takes 30 minutes to complete its route once and bus B takes 40 minutes to com
    10·1 answer
  • How would you solve 6 divided 18
    12·2 answers
  • Which of the following add carbon dioxide to the atmosphere
    7·2 answers
  • Pls help by today :) ill give brainliest when I can
    5·2 answers
  • Marissa is painting her rectangular patio, with the exception of a bench that does not need to be painted:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!