8. Michele measured her resting pulse rate by counting her number of heartbeats for a duration of one minute. She recorded the number of heartbeats every 10
seconds in the table below.
Heartbeats
Time
(seconds)
10
11
20
22
30
33
40
44
50
55
60
66
Which function represents Michele's number of heartbeats after t seconds?

x ≥ 18 is your answer

step-by-step explanation:

let "a number" = x

(2/3)x + 17 ≥ 29

isolate the variable (x). do the opposite of pemdas (parenthesis, exponent (& root), multiplication, division, addition, subtraction).

first, subtract 17 from both sides.

(2/3)x + 17 (-17) ≥ 29 (-17)

(2/3)x ≥ 29 - 17

(2/3)x ≥ 12

next, multiply 3/2 to both sides to isolate the x

(3/2)(2/3)x ≥ 12(3/2)

x ≥ 12(3/2)

simplify. multiply, then divide

x ≥ (12 * 3)/2

x ≥ (36)/2

x ≥ 18

x ≥ 18 is your answer

~

360/29

step-by-step explanation: