(v-4) ( 7v+3) is the answer
Answer:Answer:
−78+−12=−138
Step-by-step explanation:
The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.
LCD(-7/8, -1/2) = 8
Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.
(−78×11)+(−12×44)=?
Complete the multiplication and the equation becomes
−78+−48=?
The two fractions now have like denominators so you can add the numerators.
Then:
−7+−48=−118
This fraction cannot be reduced.
The fraction
−118
is the same as
−11÷8
Convert to a mixed number using
long division for -11 ÷ 8 = -1R3, so
−118=−138
Therefore:
−78+−12=−138
Solution by Formulas
Apply the fractions formula for addition, to
−78+−12
and solve
(−7×2)+(−1×8)8×2
=−14+−816
=−2216
Reduce by dividing both the numerator and denominator by the Greatest Common Factor GCF(22,16) = 2
−22÷216÷2=−118
Convert to a mixed number using
long division for -11 ÷ 8 = -1R3, so
−118=−138
Therefore:
−78+−12=−138
M stands for the slope of the line and b is called the y-intercept of the line
Answer:
(a) Dahl Motors = 8 Cars
Farthington Auto Sales = 7 Cars
(b) Roger will purchase from Farthington Auto Sales with higher weekly profit
Step-by-step explanation:
Dahl Motors / Week
(1) Car Sold 5 6 7 8 9 10 11 12
(2) Probability 5% 9% 14% 24% 18% 14% 11% 5%
(3) (2 x 3 ) 0.25 0.54 0.98 1.92 1.62 1.40 1.21 0.60
(4) Average sales = 0.25 + 0.54 + 0.98 + 1.92 + 1.62 + 1.40 + 1.21+0.60
= 8.52 cars/ week
= 8 cars /week
Profit/ Car = $544
Total weekly profit = 544 x 8
= $4,352
Farthington Auto Sales/ Week
(1) Car Sold 5 6 7 8 9 10
(2) Probability 8% 21% 31% 24% 10% 6%
(3) (2 x 3 ) 0.40 1.26 2.17 1.92 0.9 0.6
(4) Average sales = 0.40 + 1.26 + 2.17 + 1.92 + 0.90 + 0.60
= 7.25 cars/ week
= 7 cars/week
Profit/ Car = $651
Total weekly profit = 651 x 7
= $4,557
From the calculations above , Roger will purchase from Farthington Auto Sales
