What are these equation answers:
* 4x+2y=10
* 3x+2=6y

1 Factor out the common term 22.

2(2x+y)=102(2x+y)=10

2 Divide both sides by 22.

2x+y=\frac{10}{2}2x+y=

2

10

3 Simplify  \frac{10}{2}

2

10

  to  55.

2x+y=52x+y=5

4 Subtract yy from both sides.

2x=5-y2x=5−y

5 Divide both sides by 22.

x=\frac{5-y}{2}x=

2

5−y

Step-by-step explanation:

1 Factor out the common term 22.

2(2x+y)=102(2x+y)=10

2 Divide both sides by 22.

2x+y=\frac{10}{2}2x+y=

2

10

3 Simplify  \frac{10}{2}

2

10

  to  55.

2x+y=52x+y=5

4 Subtract yy from both sides.

2x=5-y2x=5−y

5 Divide both sides by 22.

x=\frac{5-y}{2}x=

2

5−y

linearly: 8560 bacteria

exponentially: approximately 75233 bacteria

step-by-step explanation:

assuming it is not exponential (we would have some really complicated logarithms), let's say it is linear. then, after 5 hours, it increased by 1200 bacteria, so every hour it increases by 240 bacteria. this means that after 19 hours, we get 19 * 240 + 4000 bacteria or 3800 + 760 + 4000 = 7800 + 760 = 8560 bacteria.

because it says round your answer, i will do this exponentially (with a calculator, of course). first, we need to find how much it multiplies by every hour, by taking the 5th root of 52/40 or 13/10. this is approximately 0.167. we still need to add 1 to this, because we are multiplying by that number, not adding that amount of the number. now, we just calculate 4000 * (1.167)^19. use a calculator to get approximately 75232.6, or 75233.

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80