Answer:
major arc CEB = 320°
Step-by-step explanation:
arc BF = 140°
arc CE = 140°
arc CB = arc EF
arc CB + arc EF = 360-280 = 80
arc CB = 40°
major arc CEB = 360 - 40= 320°
19 is correct
20. The total sale is
.. total = (book price) + (tax rate)*(book price) . . . . math for adding tax
.. total = (book price)*(1 +(tax rate)) . . . . . . . . . . . . . factor out book price
.. total/(book price) = 1 +(tax rate) . . . . . . . . . . . . . . divide by book price
.. (total/(book price)) -1 = tax rate . . . . . . . . . . . . . . subtract 1
25.02/24 -1 = tax rate = 1.0425 -1 = .0425 = 4.25%
Answer:
the absolute value should be 47. hope that helps
Step-by-step explanation:
Answer:
NATHAN RODE 2 MILES
Step-by-step explanation:
Let N = Nathan's number of miles
Let M = 5N - 4 (Miguel rode his bicycle 4 miles less than 5 times the number of miles Nathan rode.
M = 6 (Miguel rode his bicycle 6 miles.)
6 = 5N - 4 (Substitute 6 for M in the equation above(M = 5N - 4).
6 + 4 = 5N - 4 + 4 (Add 4 to both sides of equation.)
10 = 5N
10/5 = 5N/5 (Divide both sides by 5 to isolate the variable N.)
2 = N
ANSWER: NATHAN RODE 2 MILES
CHECKING:
DOES MIGUEL'S 6 MILES EQUAL 5N - 4?
5N - 4 = (5)(2) - 4 = 10 - 4 = 6 MILES .
YES IT DOES.
