The first one that's the answer the reason for that is because it's the formula to find the area if you do it backward you can find the side legnth
Number 4 is C... 21
To complete the question, make the equation 5x + 15 + 3x - 3 = 180 because of supplementery angles.
Just solve for x to get 21.
Number 5 is C... 120
To complete this question, sub 21 in for X in the equation 3x - 3 to get 60. Subtract 60 from 180 to get 120.
Answer:
x=−4
Step-by-step explanation:
12-3x=-6x
add -3x on both sides
12=-6x+3x
add -6x and 3x together
12=-3x
divide both sides with -3

-4=x
since -3*4= -12
hope this makes sense
Answer:
Step-by-step explanation:
speed=distance /time=0.9/2.5=90/25=3.6 m/s
Answer:
1.8 dishes per minute (Sarah)
1.67 dishes per minute (Sunil)
Step-by-step explanation:
We can find the rate by dividing the number of dishes by the number of minutes:
18/10 = 1.8 dishes per minute
30/18 = 1.67 dishes per minute