Answer: 116
Step-by-step explanation:
This can be
solved by solving the slope of the line. First let y be the rating of the test
and x be the number of incorrect answers. Slope can be solved using the formula:
M = ( y2 –
y1 ) / ( x2 – x1)
M = ( 90 –
98) / ( 5 -1 )
M = -2
<span>So the model
has a negative slope</span>
Answer:
990
Step-by-step explanation:
99+88+77+66+55+44+33+22+11+11+22+33+44+55+66+77+88+99=990
Answer:
Length oh two equal sides: 1 16/45 cm
Third side: 2 31/45 cm
Step-by-step explanation:
length of two equal sides is x
Perimeter = x + x + ( x + 1 1/3) = 3x + 1 1/3 = 5 2/5
3x = 5 2/5 - 1 1/3 = 27/5 - 4/3 = 61/15
x = 61/45 = 1 16/45
Third side = 61/45 + 4/3 = 121/45 = 2 31/45