The question is biased towards a response of preferring to use weight-lifting machines because it uses the words "hard" to describe free weights and "easy" to describe the machines, and may persuade some people to choose the machine.
The sample is not biased because it doesn't choose specific women, it includes all women who visit the gym.
<em>1.) </em><em>1</em>
<em>Let's start with 18 degrees and then subtract 12 degrees from it</em>
<em>18-12=6</em>
<em>Now let's take 6 degrees and subtract 5 from it</em>
<em>6-5=</em><em>1</em>
<em>At 2 pm the temperature was 1 degree.</em>
<em>2.) </em><em>$125</em>
<em>Start with the total amount John had ($250) and then subtract his remaining amount ($125) to find out how much he withdrew.</em>
<em>$250-$125=</em><em>$125</em><em> </em>
I’m not completely sure if I’m right but 6..?
Answer:
B. y = 16.
Step-by-step explanation:
x = 20 - y
7x - 12 = y
Rearranging both equations
x + y = 20..............A
7x - y = 12..............B Adding A + B:
8x + 0 = 32
x = 32/8 = 4.
Substituting x = 4 in equation A:
4 + y = 20
y = 16.
Checking the results in the original equations:
x = 20 - y
4 = 20 - 16 = 4 Checked.
7x - 12 = y
7(4) - 12 = 16
28 - 12 = 16 Checked.
Answer: not sure
Step-by-step explanation:
What does x represent?
