That is negative since the elevator is decreasing. If the elevator was going up, it would be positive.
"-y (less than or greater than sign) 136" translates into two separate inequalities:
-y < 136 and -y > 136.
You want to solve for y in each case. To do this, multiply each inequality by "-1" and then immediately change the direction of the inequality sign.
For example: -1(-y < 136) => y > -136.
Answer:
is the first one
Step-by-step explanation:
so i did 4x0=0 -3=-3
so first y should be -3
4x1-3=1
second y should be 1
4x2=8-3=5
third y should be 5
Answer:
30
Step-by-step explanation:
the base is 10 the height is 3
10 x 3 = 30
Answer:
$1,679.42
Step-by-step explanation:
Let 
be the amount Kendra invested at 5.5%. Since the amount invested at 7% is twice the amount she invested at 5.5%, she invested 
at 7%.
Remember that 
, where:
is the interest earned
is the principal or initial investment
is the interest rate in decimal form
is the time in years
- For the 5.5% investment:
Let's replace the values in our formula, 
, which simplified is 
- For the 7% investment:
Now, we that the the amount of interest earned combining the two investment is $175.50, so:
She invested $839.71 at 5.5%, and since she invested twice that amount at 7%, she invested 2*($839.71 ) = $1,679.42 at 7% (the higher rate).
