Answer:
14
Step-by-step explanation:
How many 1/2s are in 7? Then, write a multiplication equation and a division equation that answer the question.
Let the number of 1/2s = x
Hence:
Division Equation =
7 ÷ 1/2
Multiplication Equation =
= 7 × 2/1
= 14
There are 14 1/2s in 7
The rule for this rotation is (x, y) converted into (-y, x). So, to find the answer you would make the y negative and switch the values in the ordered pair. A would be (3, -2), B would be (3, -5), and C would be (2, -4). So, your answer would be B. Hope this helps!
Answer:
53 hours
Step-by-step explanation:
If A is the time it takes Company A, and B is the time it takes Company B, then:
1/27 = 1/A + 1/B
A = B + 2
Substitute and solve:
1/27 = 1/(B + 2) + 1/B
1/27 = (B + B + 2) / (B (B + 2))
1/27 = (2B + 2) / (B² + 2B)
27 (2B + 2) = B² + 2B
54B + 54 = B² + 2B
0 = B² − 52B − 54
B = [ -(-52) ± √((-52)² − 4(1)(-54)) ] / 2(1)
B = (52 ± √2920) / 2
B ≈ 53.0
It would take Company B approximately 53 hours.
Answer:
x= 33
Step-by-step explanation:
Answer:
The top one is right
Step-by-step explanation:
Because mp3 has to have the most while none has to have the least
