A construction crew has just finished building a road. The crew worked for 10 days. If they built 2 5/6 kilometers of road each day, what is the total length of road they build?

Step-by-step explanation:

Step 1. Convert the fraction into a decimal

≈ ..

Step 2. Multiply the decimal by the number of days (10)

× about ..

Since 0.33 equals a third, you can change the decimal to

c

step-by-step explanation:

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15