Answer: #3 is B. give me a second and i'll try to do #4
Step-by-step explanation:
Answer:
The correct answer is n = -9.
Step-by-step explanation:
-13n + 20 = -11n + 38
20 = -11n + 38 + 13n Add 13n to both sides
20 = 2n + 38 Combine like terms
20 - 38 = 2n Subtract 38 from both sides
-18 = 2n Simplify
-9 = n Divide both sides by 2
OR
-13n + 20 = -11n + 38
-13n = -11n + 38 - 20 Subtract 20 from both sides
-13n = -11n + 18 Combine like terms
-13n + 11n = 18 Add 11n from both sides
-2n = 18 Simplify
n = -9 Divide both sides by -2
Hope this helps,
♥<em>A.W.E.</em><u><em>S.W.A.N.</em></u>♥
-2:4 is the ratio. -4 can be reduced to -2 and 8 reduced to 4
Answer: The number of revolutions required to level the park is 100.
Step-by-step explanation:
Given : Diameter of roller = 77 cm
Then radius of roller : r = 
Height = 1 m = 100 cm
Curved surface area of roller = 
Dimensions of park = 22 × 11 m
Then Area of park = 
Now , the number of revolutions required to level the park = (Area of park) ÷ (Curved surface area of roller )
Hence, the number of revolutions required to level the park is 100.
Answer: No solution
Explanation: It is completely parallel. If it intersects, it has 1 solution. If it is exactly the same, giving the appearance of one line, it has infinite. When it’s parallel, it has none.
