Mathematics, 03.12.2019 23:31, jazminpagan15
Medical researchers have determined that for exercise to be beneficial, a person’s desirable heart rate, r, in beats per minute, can be approximated by the formulas
r = 143 - 0.65a for women
r = 165 - 0.75a for men,
where a represents the person’s age. if the desirable heart rate for a man is 135 beats per minute, how old is he?
a.
22.5 years old
b.
40 years old
c.
45 years old
d.
42.5 years old
Answers: 1
Mathematics, 21.06.2019 19:50, gymnastattack
Drag each tile into the correct box. not all tiles will be used. find the tables with unit rates greater than the unit rate in the graph. then tenge these tables in order from least to greatest unit rate
Answers: 2
Mathematics, 21.06.2019 22:50, tali2561
Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?
Answers: 1
Mathematics, 22.06.2019 01:30, damienlopezram
Five friends found a dollar on the ground and decided they each should get 1/5 of it. what amount of money will each friend get? $0.05 $0.20 $0.30 $0.80
Answers: 2
Medical researchers have determined that for exercise to be beneficial, a person’s desirable heart r...
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