HELP PLEASE ILL GIVE MEDALS Becca has a biscuit recipe that uses 2/3 of a tablespoon of salt for every 3/4 of a cup of flour. In order to have enough biscuits for her family that is visiting, Becca is making a batch of biscuits using 3 cups of flour and _______ tablespoons of salt.
please help I'm not understanding this
hello? plz someone HELP!
ok so, this is a proportion you need to set up
what you are saying is that the ratio will hold
so we have to set up an eq, any ideas?
umm...not really im terrible at math
it's ok, and no one is terrible at math, they just haven't learned it yet. Don't get yourself down. so let me explain using different ex
If for every 5 dollars I have I can buy 3 pairs of shoes, how many shoes can I buy with 15 dollars?
5?
wait no
9?
yep 9
so what you just solved was this proportion, \(\frac{5}{3}=\frac{15}{x}\)
or dollars over quantity = dollars over quantity
so, you solved for x, how did you do it
i broke down 15 like this: 5, 10, 15. then i counted by 3's for each one and got 9(not a very good explanation)
nope, that is another way of doing it, I want you to try it using this proportion though. It's a little bitt of algebra
(a perfectly viable way too)
do you know how to solve that eq? or would you like a walk through then another one you solve?
explanation then another solve
alright, so first, we are going to cross multiply to get rid of our fractions (and get our x on top. \[\frac{5}{3}=\frac{15}{x}\]\[5 x=3\times 15\]\[5x=45\] do you follow?
yea
so now we want to solve for x by dividing both sides by 5. \[5x=45\]\[x=\frac{45}{5}\] Then we simplify \[x=9\] do you see how I did that?
yes that makes more sense thxs
ok so now, how about you solve this one, \[\frac{4}{3}=\frac{x}{9}\]
ok
x=12
show me your steps before i tell you if you are right
ok
i cross multiplied 4 and 9 and got 36 and i cross multiplied x and 3 to get 3x. then i divided 3 on both sides to get x by itself and then 36/3 is 12. so x=12
very good, so now I want you to set up the proportion for your problem. do salt over flour=salt over flour
ok but the question already went away srry i wasted your time.
went away? you didn't waste it, you still can figure it out
ok
sorry i got to go. you helped a lot and i understand it thanks :)
ohk? have a good one
bye
Join our real-time social learning platform and learn together with your friends!