2 years ago

9x + 8 y = -6 -9x - 9y - 9 Elimination

Mathematics

1 answer:

kolezko [41]2 years ago

6 0

Answer:

x = 2, y = -3

Step-by-step explanation:

Add them together and get

9x + 8y - 9x - 9y = -6 + 9

-y = 3

so y = -3.

Sub it into the first equation and get

9x + 8(-3) = -6

9x - 24 = -6

9x = -6 + 24 = 18

x = 18/9 = 2

You might be interested in

All you need is in the photo

Deffense [45]

Answer:

Bottom to top -

0,-3

0,1

1,2

7 0

3 years ago

B. Convert quarts to gallons.

jeyben [28]

Answer:

There are 4 quarts in one gallon. 36 divided by 4 is 9 gallons.

Step-by-step explanation:

9 gallons.

5 0

3 years ago

What is the quotient of 21.06 and 9

bekas [8.4K]

Answer:

21.06÷9 = 2 and 36 left over

Step-by-step explanation:

5 0

3 years ago

Plz help I’ll mark you

algol [13]

Answer:

option (B) is the answer

4 0

3 years ago

3. A car starts a trip with 20 gallons of gas in its tank. The car traveled at an average

Helga [31]

Answer:

32.5%

Step-by-step explanation:

first we will have to calculate how much miles the car traveled, to do that we will multiply the speed by hour long the car was traveling for which is

65*3=195

During those 195 miles the car used 1 gallon for every 30 miles which means it used 6.5 gallons of its tank

195/30=6.5

6.5 gallons is 32.5% of 20 gallons

6.5/20=0.325

0.325 * 100 = 32.5%

3 0

3 years ago