You split the L into 2 parts, solve the area of the 2 parts, then add the areas together.
Don't let them fool you. This is algebra.
1
a. Replacing equals with equals
b. Adding -12 to both sides
c. Multiplying both sides by 1/9
2
a. Associativity, replacing equals
b. Adding -8 to both sides
c. Multiplying both sides by 1/9
3
a. Distributive law
b. Adding -6x to both sides
c. Multiplying both sides by -1
4.
a. Replace equals with equals
b. Add -6m to both sides
c. Add -5 to both sides
d. Multiply both sides by 1/2
5. Symmetric property
6. Distributive property
7. Reflexive property
8. Transitive property
Answer:
Step-by-step explanation:
Solve for 'x'.
To solve for 'x', isolate 'x'.
2.8a + 3.2x + 1 = 16.6
Subtract 1 from both sides. {Subtraction property of equality}
2.8a + 3.2x = 16.6 - 1
2.8a + 3.2x = 15.6
Subtract 2.8 a from both sides.
3.2x = 15.6 - 2.8a
Now, divide both sides by 3.2. {Division property of equality}
Answer:
Distance = 70 + 55 = 125 kilometers
Time = 4 + 3 = 7 hours
Rate = Distance / Time
Rate = 125 / 7 = 17.8571428571 kilometers per hour
Step-by-step explanation:
