The snake in Tracy's science classroom grew 4 centimeters in 1/4
of a year. At that rate, how much would it grow in 1 full year?

16 cm

Step-by-step explanation:

We can use ratios to solve

4 cm             x cm

  =

1/4 year         1 year

Cross multiply

4 * 1 =  1/4 * x

Multiply each side by 4

4*4 = 1/4x*4

16 = x

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1