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Mathematics 16 Online
OpenStudy (theedwardsfamily):

Medal and Fan! Question down below...

OpenStudy (theedwardsfamily):

OpenStudy (theedwardsfamily):

@Vocaloid

Vocaloid (vocaloid):

start by distributing

OpenStudy (theedwardsfamily):

this a tricky one

OpenStudy (theedwardsfamily):

but ok

OpenStudy (yolomcswagginsggg):

hei my name is Jeff i turned 21 about a week ago, for mi birthday I got a potato flying aroun mi room

Vocaloid (vocaloid):

whoops small typo (1/5)*(15+5a) = ?

OpenStudy (theedwardsfamily):

@yolomcswagginsggg no random comments on my question pplease

OpenStudy (theedwardsfamily):

7.5+2.5a

Vocaloid (vocaloid):

nope, not quite (1/5)*15 = ?

OpenStudy (theedwardsfamily):

1

Vocaloid (vocaloid):

nope, not quite... hint: (1/5)*15 = 15/5 = ?

OpenStudy (theedwardsfamily):

3? are we dividing 15/5?

Vocaloid (vocaloid):

yes

Vocaloid (vocaloid):

multiplying by 1/5 is the same as dividibg by 5

Vocaloid (vocaloid):

now (1/5)*5a = ?

OpenStudy (theedwardsfamily):

srry my laptop cut off

OpenStudy (theedwardsfamily):

1a? im confused

Vocaloid (vocaloid):

yes, a (we usually write 1a as a)

Vocaloid (vocaloid):

now we have a + 5 = a + 3 notice what happens when subtract away a from each side

Vocaloid (vocaloid):

still there?

OpenStudy (theedwardsfamily):

yea just confused

Vocaloid (vocaloid):

subtract a from each side

OpenStudy (theedwardsfamily):

it would be 1?

Vocaloid (vocaloid):

a + 5 - a = ?

OpenStudy (theedwardsfamily):

4? a would be 1?

Vocaloid (vocaloid):

hint: a - a = ?

OpenStudy (theedwardsfamily):

a

Vocaloid (vocaloid):

are you sure? hint: 1 - 1 = 0 a - a = ?

OpenStudy (theedwardsfamily):

ok, so a-a=0

Vocaloid (vocaloid):

good, so what is a + 5 - a ?

OpenStudy (theedwardsfamily):

5

Vocaloid (vocaloid):

good. a + 3 - a = ?

OpenStudy (theedwardsfamily):

3

Vocaloid (vocaloid):

good. so now we have 5 = 3 notice something unusual about this statement? when we solve an equation and get a false statement like this, there is no solution

Vocaloid (vocaloid):

in other words, there is no value of a that can make 5 equal 3

OpenStudy (theedwardsfamily):

i see. thank you!

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