20 because 16 is greater than 15 and we round the number up.
Step-by-step explanation:
-x+2y=-6
x-2y=6
x=2y+6
substitute in 2x-3y=11 gives us 2(2y+6)-3y=11
4y+12-3y=11
y=-1
-x+2(-1)=-6
-x=-4
x=4
7x+4 is the solution.
Hope I'm the brainliest!!
Answer:
D) all rhombuses are parallelograms.
Step-by-step explanation:
Answer: in statistics deviation is the difference between the value of one number in a series of numbers and the average value of all numbers in the series ( i hope this helped)
Step-by-step explanation: