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
gtnhenbr [62]
3 years ago
13

What is the answer to the equation 7/9+1/7+3/5

Mathematics
2 answers:
Pavel [41]3 years ago
4 0

Answer:

479/315

Step-by-step explanation:

1.) Add: 7/ 9  + 1 /7  = 7 · 7 /9 · 7  + 1 · 9 /7 · 9  = 49 /63  + 9 /63  = 49 + 9 /63  = 58 /63

The common denominator you can calculate as the least common multiple of the both denominators - LCM(9, 7) = 63. The fraction result cannot be further simplified by cancelling.

In words - seven ninths plus one seventh = fifty-eight sixty-thirds.

2.) Add: the result of step

No. 1 + 3 /5  = 58 /63  + 3 /5  = 58 · 5 /63 · 5  + 3·63 /5·63  = 290 /315  + 189 /315

= 290 + 189 /315  = 479 /315

The common denominator you can calculate as the least common multiple of the both denominators - LCM(63, 5) = 315. The fraction result cannot be further simplified by cancelling.

In words - fifty-eight sixty-thirds plus three fifths = four hundred seventy-nine three-hundred fifteenths.

Eva8 [605]3 years ago
3 0

Answer:

Step-by-step explanation:

1.52063492063

You might be interested in
X-45=8(2x+3)-18 what are the first steps to solving this equation
Mamont248 [21]

Step-by-step explanation:

step one Distribute

x−45=8(2x+3)−18

x−45=16x+24−18

step two Subtract the numbers

x−45=16x+24−18

x−45=16x+24−18

3 0
3 years ago
In his last football game, Sean rushed for 89 yards. If his season total is 871 yards, how many total yards did he have prior to
Vera_Pavlovna [14]

Answer:

782

Step-by-step explanation:

Since it's asking for the before game miles youd have to take he total yards.

(871)

The you wanna take the total yards ran from that one game.

(89)

Then just subtract by the number of yards total and the number of yards ran in that one game.

871-89=782

3 0
3 years ago
Solve the system.
liraira [26]

Answer:

Option D is right,.

Step-by-step explanation:

-a+4b+2c=-8   ... i

3a+b-4c=9      ... ii

b=-1                 ... iii

Substitute the value of b, in i and ii

-a-4+2c =-8 or -a+2c = -4

and 3a-1-4c = 9 or 3a -4c =8

Now we have two equations in two variables

-a+2c =-4 and 3a-4c =8

a = 2c+4:  substitute this in the other equatin.

3(2c+4)-4c =8 Or 2c +12 =8

2c =-4 or c = -2

Substitute in -a+2c =12

-a-2 = -4

a = -2+4 =2

a=2, b=-1 and c =-1 is the solution.


6 0
3 years ago
On the number line bug A is moving in the positive direction from the point 0, and a bug B is moving in the negative direction f
kumpel [21]

Answer:

x =6t

y = - 5t

6 0
3 years ago
If exactly 180 people sign up for a charter flight, Leisure World Travel Agency charges $298/person. However, if more than 180 p
lesantik [10]

Answer:

The max. revenue is $57,121.

This happens with 239 passengers.

The price of the ticket is $239 per person.

Step-by-step explanation:

Let the variable "P" denote the number of passengers.

If P=180, then the ticket cost is $298/person. Then the price is reduced by $1 for each additional person.

In general, if P=(180+x), then the ticket cost becomes (298-x) per person.

The revenue can be defined as the ticket cost multplied by the number of passengers:

R=P*T=(180+x)(298-x)=53,640-180x+298x-x^2\\\\R(x)=-x^2+118x+53,640

We can derive R and equal to zero to maximize the function.

dR/dx=-2x+118=0\\\\x=118/2=59

The amount of passengers is:

P=180+x=180+59=239

The price of the tickets is

T=298-59=239

The revenue is:

R(59)=(180+59)(298-59)=239*239\\\\R(59)=57,121

3 0
3 years ago
Other questions:
  • 3. For the function, :c(X)=x^2+4x-5 over x+5<br> (a) Identify the restricted domain value(s).
    11·1 answer
  • X3+2x2+7 by x+3 which synthetic division expression would give the correct result
    7·1 answer
  • How is using base ten blocks helps you to add decimals
    14·2 answers
  • Given that the slope of a line is 1/3, what is the slope of a line that is pependicular to it ?
    5·1 answer
  • Please help me out and help me show work ??
    10·1 answer
  • Which of the following are trigonometric identities ? Check all that apply. Tan^2 x -
    15·1 answer
  • (Sin5A/sina)-(cos5A/cosA)=4cos2A
    6·1 answer
  • Pls help me complete this
    12·2 answers
  • Plzzzzzzzzzzzz i need help
    8·2 answers
  • For how many positive integers n is it possible to have a triangle with side lengths five, 12, and n
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!