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Mathematics 22 Online
OpenStudy (chunkymonkay):

Please check my answers :)

OpenStudy (chunkymonkay):

OpenStudy (chunkymonkay):

OpenStudy (chunkymonkay):

OpenStudy (chunkymonkay):

OpenStudy (chunkymonkay):

OpenStudy (chunkymonkay):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

17, 20, and 21 are incorrect

OpenStudy (lilshane):

whats your anwser

OpenStudy (chunkymonkay):

my answers are on there.

OpenStudy (chunkymonkay):

in the screenshot

OpenStudy (chunkymonkay):

and how would i do 17

OpenStudy (chunkymonkay):

@jim_thompson5910

jimthompson5910 (jim_thompson5910):

hint for 17: http://www.regentsprep.org/regents/math/algebra/AO4/Ldirect.htm

OpenStudy (chunkymonkay):

ok thanks im going to try real quick!

OpenStudy (chunkymonkay):

what about 20 and 21?

jimthompson5910 (jim_thompson5910):

for 20, only focus on the second column (cross out the first column if it distracts you)

jimthompson5910 (jim_thompson5910):

keep in mind that those numbers given to you are not percentages you need to compute the percentages

OpenStudy (linn99123):

what is the test on?

OpenStudy (chunkymonkay):

k im gonna see right now please hold on

OpenStudy (chunkymonkay):

its practice questions not a test

OpenStudy (chunkymonkay):

would 20 be 30?

jimthompson5910 (jim_thompson5910):

#20 step 1) cross out or erase the first column, focus on the second column only step 2) determine how many people total are over 50 (add up the values in column 2) step 3) Divide the number of people in group A by this total number found in step 2

OpenStudy (chunkymonkay):

17 would it be y=5x

jimthompson5910 (jim_thompson5910):

yes

OpenStudy (chunkymonkay):

ok thanks 20 is confusing I got 56 divided by 32 ????

OpenStudy (chunkymonkay):

@jim_thompson5910

OpenStudy (chunkymonkay):

@bibby

jimthompson5910 (jim_thompson5910):

you divided in the wrong order

OpenStudy (bibby):

how'd you get 56?

OpenStudy (chunkymonkay):

32+56

OpenStudy (chunkymonkay):

oops I meant 32 + 24

OpenStudy (chunkymonkay):

i got 1.75???

jimthompson5910 (jim_thompson5910):

you need to compute 32/56 instead of 56/32

OpenStudy (chunkymonkay):

.5714

jimthompson5910 (jim_thompson5910):

so approx 57.14%

OpenStudy (chunkymonkay):

57

jimthompson5910 (jim_thompson5910):

rounded to the nearest whole percent: 57%

jimthompson5910 (jim_thompson5910):

yes

jimthompson5910 (jim_thompson5910):

you're only focusing on the 50 yr olds though

OpenStudy (bibby):

yeah, I misread the question and thought it was 32/32+19

OpenStudy (chunkymonkay):

now how do i do 21 add them all divide same as the other or no?

jimthompson5910 (jim_thompson5910):

hint for 21: look at the x axis since that's where variable A is find the smallest x coordinate of the points find the largest x coordinate of the points

OpenStudy (chunkymonkay):

1 and 3

jimthompson5910 (jim_thompson5910):

list out the x coordinates of each point

OpenStudy (chunkymonkay):

3,5,8,9 and 10

jimthompson5910 (jim_thompson5910):

the range will extend from the smallest x value you listed to the largest x value you listed

OpenStudy (chunkymonkay):

3 and 10

OpenStudy (chunkymonkay):

@bibby

jimthompson5910 (jim_thompson5910):

yep

OpenStudy (chunkymonkay):

thank u

OpenStudy (jordan123321):

still need help

OpenStudy (chunkymonkay):

can u check four more i will close this one and post the others thanks alot

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