Answer:
1. The first problem is wrong, it should be 0.5(3(15) + 2(20)) because the parentheses make sure that every purchased item is being divided by 2 (multiplying by 0.5 is the same as dividing by 2)
2. The second problem is partially correct. The first two answers you have checked are correct, but the last one is wrong. The third answer should be 6 + 12 instead because that's just a simplified version of 2(3) + 6(2), meaning they are equal
3. I cannot read your answers in the "Why or Why Not" column in the third problem, but the answers you gave in the "Evaluate" and "Does It Work?" columns are all correct.
Answer: 3x + 6
the slope, m, is 3
the y-intercept, b, is 6
Step-by-step explanation:
Change to slope intercept form, y = mx + b
First, isolate y on the left
2y -6x = 12 Add 6x to both sides (6x cancels on the left)
2y/2 = 6x/2 + 12/2 Divide both sides by 2 (2 cancels on he left)
y = 3x + 6
the slope, m, is 3
the y-intercept, b, is 6
Answer:
A capacidade dessa piscina é de 150.000 litros de água.
Step-by-step explanation:
A capacidade da piscina é de x.
Para encher 2/5 de uma piscina são necessários 60.000 litros de água.
Isto implica que:
A capacidade dessa piscina é de 150.000 litros de água.
Answer:
your answer should be 8.76 :D
Step-by-step explanation:
as we move down the list as we push the *digits* to the *left*through the decimal *point* *each* *number has been 10*. and so we can easily *multiply* or divide by *a* power of *10* because of our system of positional numeration. Each Place belongs to the next power of *10*.