Irene is mixing starch with flour to make a pinata. For every cup of flour, she needs to add 1/4 cup of starch.
How much starch does Irene need for 10 cups of flour?
Express your answer in simplest form.
cups
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OpenStudy (anonymous):
plz help
OpenStudy (anonymous):
please
OpenStudy (anonymous):
kelliegirl33??
OpenStudy (anonymous):
are you there
OpenStudy (anonymous):
your sis asked me to come here :)
proportion time...
1/(1/4) = 10/x (1 cup flour to 1/4 cup starch = 10 cups flour to x cups starch)
cross multiply
(1)(x) = (1/4)(10)
x = 10/4
x = 2 1/2 cups starch ==> your answer
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OpenStudy (anonymous):
ok i have 2 more
OpenStudy (anonymous):
are good with that
OpenStudy (anonymous):
lets see what you got
OpenStudy (anonymous):
A whale's heart can beat once every 1/9 of a minute when it is resting.
How many times can the whale's heart beat in 5 minutes?
OpenStudy (anonymous):
hello??
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OpenStudy (anonymous):
are you done yet
OpenStudy (anonymous):
Is this multiple choice ?
OpenStudy (anonymous):
hello??
OpenStudy (anonymous):
is this multiply choice ?
OpenStudy (anonymous):
no you have to pick a number no choices
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OpenStudy (anonymous):
1/9 per minute means 5/9 in 5 minutes.
5/9 of a minute = 5/9 * 60 = 300/9 = 33.33 sec.
33.33 x 5 = 166.65 rounds to 167 beats in 5 minutes ??
You better get a second opinion on this one
OpenStudy (anonymous):
Michael swims back and forth across his pond. It is 1/4 miles across the pond.
How many times will Michael need to swim across his pond to swim 8 miles?
A.
32
B.
16
C.
8
D.
2