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Shkiper50 [21]
2 years ago
11

Select the correct answer from each drop-down menu. Consider this system of equations: (equation A) (equation B) The solution fo

r the system of equations is .
Mathematics
1 answer:
GarryVolchara [31]2 years ago
3 0

The solution for the system of equations is: (99/13, 150/13)

Given the two expression 2/3x+3/5y=12 and 5/2y-3x=6

We have to find solution of two given expression.

To find the value of x, we have to eliminate y by making y the subject of formula in any of the equations.

Multiply equation A by 5/3 t.o get,

5/3(2/3x) + 5/3(3/5y) = 5/3(12)

10/9x + y = 20

y = 20 - 10/9x

substituting for y into equation b, we have:

5/2(20 - 10/9x) - 3x = 6

50 - 25/9x - 3x = 6

52/9x = 44

52x = 396

The expression that gives the value of x is: 52x = 396

Hence, x = 396/52 = 99/13

y = 20 - 10/9(99/13) = 20 - 110/13 = 150/13

Hence The solution for the system of equations is: (99/13, 150/13)

Learn more about system of equations here:

brainly.com/question/13729904

#SPJ10

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kirill [66]
The answer is gonna be 9 with a remainder or .06 if i’m wrong sorry lowkey kinda dumb ngl:)
3 0
4 years ago
There are only blue ,yellow cubes and green cubes in a bag there are 5 times as many blue cubes as yellow cubes and there are 5
Molodets [167]

Answer:

1 / 31

Step-by-step explanation:

Given that:

Yellow (y) ; Blue (b) ; Green (g)

b = 5y

g = 5b

Assume :

Number of yellow cube = 1

y = 1

b = 5

g = 5*5 = 25

Probability = (required outcome / number of total possible outcomes)

P( picking a yellow) = number of yellow / total number of cubes

Total number of balls = (1 + 5 + 25) = 31

P(picking a yellow) = 1 / 31

7 0
3 years ago
PLEASE HELP ASAP !!!
Harrizon [31]

Answer:

  9/28

Step-by-step explanation:

1/4 = 7/28 is owned by the first person.

3/7 = 12/28 is owned by the second person.

The third person owns 28/28 -7/28 -12/28 = 9/28 of the business.

3 0
4 years ago
Mary buys a 10-meter spool of thread for sewing. She uses 210 centimeters. How much is left on the spool in centimeters?
Margaret [11]

100 cm = 1 meter

210 cm = 2.1 meters (multiply both sides by 2.1)

Mary uses 2.1 meters of thread so far, meaning she has 10-2.1 = 7.9 meters left

7.9 meters = (7.9 m)*(100 cm/1 m) = 790 cm

--------------------------------------

Alternate route:

10 meters = (10 m)*(100 cm/1 m) = 1000 cm

Mary uses 210 cm out of 1000 cm total, so she has 1000-210 = 790 cm left.

--------------------------------------

<h3>Answer: 790 cm</h3>
6 0
4 years ago
Twice a number x,minus 19
Alex

Answer:

2x - 19

Step-by-step explanation:

"Twice a number x" means the (missing) number is called x. Write "2x" which means multiply "x" by 2.

"Minus 19" is -19.

Together, the expression is 2x - 19.

6 0
4 years ago
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