Mathematics
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OpenStudy (anonymous):
Need Help !
What is the value of w?
5(9 − 3) = w • 9 – 5 • 3
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OpenStudy (skullpatrol):
any ideas?
OpenStudy (anonymous):
no, i never did this before
OpenStudy (anonymous):
can you help me @skullpatrol ?
OpenStudy (skullpatrol):
Do know the distributive property?
OpenStudy (anonymous):
yes
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OpenStudy (skullpatrol):
$$\Huge a(b-c)=ab-ac$$ $$\Huge 5(9 − 3) = w \cdot 9 – 5 \cdot 3$$
OpenStudy (anonymous):
ok , im going to try to work this out real fast
OpenStudy (skullpatrol):
Just look at it :)
what must "a" equal?
OpenStudy (anonymous):
5
OpenStudy (skullpatrol):
Correct :)
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OpenStudy (anonymous):
wait so thats the answe ? lol
OpenStudy (skullpatrol):
The value of w is 5.
OpenStudy (anonymous):
wow , thanks , that make me laugh because it was that hard(easy)
OpenStudy (skullpatrol):
math is that way sometimes :)
OpenStudy (skullpatrol):
No need to work things out, just step back and look at it.
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OpenStudy (anonymous):
ok, can u help me out one more time so i can understand because that was just like WOW ! ?
OpenStudy (skullpatrol):
sure
OpenStudy (anonymous):
Which expressions show how 6 • 45 can be rewritten using the distributive property?
6 • 40 + 6 • 5
6 • 40 − 6 • 5
6 • 50 – 6 • 5
6 • 50 + 5
OpenStudy (skullpatrol):
Any ideas?
OpenStudy (anonymous):
2nd one ?
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OpenStudy (skullpatrol):
no, there are two, but the second one is not right
OpenStudy (anonymous):
6 • 40 + 6 • 5
OpenStudy (skullpatrol):
yes
OpenStudy (skullpatrol):
one more please :)
OpenStudy (anonymous):
oh ok . ok
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OpenStudy (anonymous):
6 • 50 – 6 • 5
OpenStudy (skullpatrol):
The distributive property is extremely important to be familiar and comfortable with.
OpenStudy (anonymous):
yea , this is the grade where i start learning it btw
OpenStudy (skullpatrol):
Multiplication is based on it.
OpenStudy (skullpatrol):
can you tell me the second one please?
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OpenStudy (anonymous):
yea i see , im going to go watch a youtube video on this
OpenStudy (skullpatrol):
6 • 50 – 6 • 5
OpenStudy (anonymous):
yes
OpenStudy (skullpatrol):
$$\Huge 6 \cdot 45 = 6 \cdot 50 – 6 \cdot 5$$ $$\Huge a(b-c)=ab-ac$$
OpenStudy (anonymous):
so i was correct about 6 • 50 – 6 • 5
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OpenStudy (anonymous):
ok, i see now
OpenStudy (skullpatrol):
Note how "a" is distributed as a multiplier of each of the terms ab and ac.
OpenStudy (anonymous):
THANKS !
OpenStudy (skullpatrol):
Thanks for trying so hard to learn something new :D
OpenStudy (anonymous):
:) yea its important to me aha