All categories

3 years ago

5x + 6y = 20 , 8x - 6y = -46

Mathematics

1 answer:

serg [7]3 years ago

7 0

Answer:

5x + 6y = 20_____(1)

8x - 6y = -46_____(2)

Solving simultaneously:

Eqn(1) + Eqn(2)

5x + 8x + 6y + (-6y) = 20 + (-46)

13x = -26

x = -2

substituting this into Eqn (1):

5(-2) + 6y = 20

-10 + 6y = 20

6y = 30

y = 5

hence:

x = -2,y = 5.

You might be interested in

A box that measures 15 inches by 5 inches by 3 inches.

tino4ka555 [31]

Answer: cubic inches.

Step-by-step explanation: When calculating volume, all of the units must be cubed. And all of the measurements are in inches.

6 0

3 years ago

Read 2 more answers

(x - 3)(2x^2 - 5x + 1)

Sunny_sXe [5.5K]

Answer:

2x^3-11x^2+16x-3

Step-by-step explanation:

Multiply x to all the other factors in the second parenthesis

Multiply -3 to all the other factors in the second parenthesis

3 0

3 years ago

Jim started cleaning at :1009 AM and finished at :1132 AM.<br> How long did it take him?

Goryan [66]

Answer:

1 hour and 23 minutes

Step-by-step explanation:

11:32-10:09=1:23

Thinking through this logically, one hour after 10:09 is 11:09 and we know that it took him longer than this.

We can then subtract the minutes without having to worry about the base-60.

32 minutes -9 minutes =23 minutes

We then add the 23 minutes to the 1 hour and determine that it took him 1:23 (one hour and twenty-three minutes).

7 0

3 years ago

Read 2 more answers

Find the products of the following

user100 [1]

Step-by-step explanation:

4 0

3 years ago

Use the figure to find the measures of <1 and <2

nikdorinn [45]

Answer:

<1=134 degrees

<2=46 degrees

Step-by-step explanation:

Ans in attachment

hope it helps :)

plz mark as brainliest

5 0

3 years ago