Estimated amount that Mr. Jones thought would be spending each week for grocery = $120
Amount actually spent by Mr.Jones in the grocery store = $94
Error in calculation of the amount of spending = (120 - 94) dollars
= $26
Percentage error in calculation = (26/120) * 100
= (13/6) * 10
= 130/6
= 21.666 percent
= 21.67 percent
So there is 21.67% error in the calculation of Mr. Jones. I hope you got the answer you were looking for.
Answer:
No, triangles CDE and HGF are not necessarily congruent.
Step-by-step explanation:
Notice that just having one angle equal in value doesn't make the triangles congruent. To start with, we know that the three internal angles of a triangle must add up to 180 degrees, but all we know when one is 50 degrees, the other two must add up to 130 degrees, which can be done by an infinite number of different angle combinations: 110 + 20, 90 + 40, 80 + 50, etc.
Y = mx + b
y = -4x -2
trying option 1
-8x + 2y = -4
2y = -4 + 8x
y = -2 + 4x
so its incorrect
Now trying option 2
8x + 2y = -4
2y = -4 - 8x
y = -2 - 4x
y = -4x -2
so Option B is correct
Answer: c
Step-by-step explanation:
The two points on the line are open, so they will not be included in the solution set, which means they will be greater than or less than. No number can fit both inequalities, so it must be “or”. The only one that fits this is c.
