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SAT Math 2.3 Algebra and Functions. Calculate this function.
SAT Math: Which System of Equations Represents Kyle's Workout? 2 Views
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Description:
Kyle is working out at his local gym. He burns 150 calories for every 10 minutes he runs on the treadmill and 10 calories for every minute he uses a jump rope. He burns 430 calories over 37 minutes of working out. If r represents the amount of time he runs on the treadmill and j is the amount of time he jumps rope, both measured in minutes, which of the following systems of equations accurately represents Kyle's workout?
Transcript
- 00:01
Okay s a team Match members is the last in
- 00:04
the series of arduous painful word problems At least this
- 00:08
siri's here we go Kyle is working out of his
- 00:10
local gym yet again he burns on unfit to galleries
- 00:14
for every ten minutes he runs on the treadmill and
Full Transcript
- 00:16
ten calories For every minute he uses a jump rope
- 00:21
He burns four hundred thirty calories over thirty seven minutes
- 00:23
of working out If our represents the amount of time
- 00:27
he runs on the treadmill and j is the amount
- 00:29
of time he jumps rope both measured in minutes Here's
- 00:32
they're giving us the standard unit there which of the
- 00:35
following systems of equations accurately represents kyle's workout We're going
- 00:41
to need two equations to solve this pumped up problem
- 00:44
one for each arm The only units we have our
- 00:47
calories in minutes so start by making an equation about
- 00:49
calories The problem states kyle burns hundred fifth galleries for
- 00:52
every ten minutes he runs So he burns ah hundred
- 00:55
fifty divided by ten or fifteen calories a minute there
- 00:58
while running If he burns ten calories a minute jumping
- 01:02
rope and four hundred thirty calories in total Well then
- 01:05
we got everything we need for a toned and sculpted
- 01:07
body of an equation That's fifteen are plus ten j
- 01:10
is for thirty right there That's it The other equation
- 01:12
deals with time We'll kyle runs for our minutes and
- 01:15
jumps for j minutes Kyle is motivated for a solid
- 01:18
thirty seven minutes so our plus j is thirty seven
- 01:21
That's it you got two equations Fifteen are plus ten
- 01:24
jay's for thirty and our plus jay's thirty seven it's
- 01:26
be good work I'll make sure you wipe down the
- 01:29
calculators you use You know when you're done with them 00:01:31.934 --> [endTime] we don't want to share your sweat
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