How many servings of cereal in 450-gram box?
$begingroup$
I am helping my brother with his math again - I need a way to explain this to him!
I am ages past this and don't have the time to find an explanation and figured that asking here would be quicker.
The question is: A 450-gram box of cereal gives the servings as $frac{3}{4}$ of an ounce. How many servings are in the box?
The answer book gives 24 servings as the answer, but does not explain why or how!
Would someone care to explain it to me, briefly? Thanks a ton for your time!
What I have tried - 1 ounce = 28.35 grams
I need to find $frac{3}{4}$ of an ounce $=$ $frac{28.35}{4}$ $=$$7.0875$ grams = $frac{1}{4}$ ounce. * 3 = $21.2625$ = $frac{3}{4}$ ounce.
Then this is where I get stuck.
ratio
edited May 4 '16 at 15:02
John
22.7k32450
asked May 4 '16 at 14:49
Carlos CarlsenCarlos Carlsen
4101616
$endgroup$
add a comment |
$begingroup$
I am helping my brother with his math again - I need a way to explain this to him!
I am ages past this and don't have the time to find an explanation and figured that asking here would be quicker.
The question is: A 450-gram box of cereal gives the servings as $frac{3}{4}$ of an ounce. How many servings are in the box?
The answer book gives 24 servings as the answer, but does not explain why or how!
Would someone care to explain it to me, briefly? Thanks a ton for your time!
What I have tried - 1 ounce = 28.35 grams
I need to find $frac{3}{4}$ of an ounce $=$ $frac{28.35}{4}$ $=$$7.0875$ grams = $frac{1}{4}$ ounce. * 3 = $21.2625$ = $frac{3}{4}$ ounce.
Then this is where I get stuck.
ratio
edited May 4 '16 at 15:02
John
22.7k32450
asked May 4 '16 at 14:49
Carlos CarlsenCarlos Carlsen
4101616
$endgroup$
1
$begingroup$
That is fine and gives $450/21.2625=21.16$, so answer $21$ servings. The answer book is wrong. You can get other answers for other kinds of ounces, but not $24$.
$endgroup$
– almagest
May 4 '16 at 14:59
add a comment |
$begingroup$
I am helping my brother with his math again - I need a way to explain this to him!
I am ages past this and don't have the time to find an explanation and figured that asking here would be quicker.
The question is: A 450-gram box of cereal gives the servings as $frac{3}{4}$ of an ounce. How many servings are in the box?
The answer book gives 24 servings as the answer, but does not explain why or how!
Would someone care to explain it to me, briefly? Thanks a ton for your time!
What I have tried - 1 ounce = 28.35 grams
I need to find $frac{3}{4}$ of an ounce $=$ $frac{28.35}{4}$ $=$$7.0875$ grams = $frac{1}{4}$ ounce. * 3 = $21.2625$ = $frac{3}{4}$ ounce.
Then this is where I get stuck.
ratio
edited May 4 '16 at 15:02
John
22.7k32450
asked May 4 '16 at 14:49
Carlos CarlsenCarlos Carlsen
4101616
$endgroup$
I am helping my brother with his math again - I need a way to explain this to him!
I am ages past this and don't have the time to find an explanation and figured that asking here would be quicker.
The question is: A 450-gram box of cereal gives the servings as $frac{3}{4}$ of an ounce. How many servings are in the box?
The answer book gives 24 servings as the answer, but does not explain why or how!
Would someone care to explain it to me, briefly? Thanks a ton for your time!
What I have tried - 1 ounce = 28.35 grams
I need to find $frac{3}{4}$ of an ounce $=$ $frac{28.35}{4}$ $=$$7.0875$ grams = $frac{1}{4}$ ounce. * 3 = $21.2625$ = $frac{3}{4}$ ounce.
Then this is where I get stuck.
ratio
ratio
edited May 4 '16 at 15:02
John
22.7k32450
asked May 4 '16 at 14:49
Carlos CarlsenCarlos Carlsen
4101616
edited May 4 '16 at 15:02
John
22.7k32450
asked May 4 '16 at 14:49
Carlos CarlsenCarlos Carlsen
4101616
edited May 4 '16 at 15:02
John
22.7k32450
edited May 4 '16 at 15:02
John
22.7k32450
edited May 4 '16 at 15:02
John
22.7k32450
22.7k32450
asked May 4 '16 at 14:49
Carlos CarlsenCarlos Carlsen
4101616
asked May 4 '16 at 14:49
Carlos CarlsenCarlos Carlsen
4101616
asked May 4 '16 at 14:49
Carlos CarlsenCarlos Carlsen
4101616
4101616
1
$begingroup$
That is fine and gives $450/21.2625=21.16$, so answer $21$ servings. The answer book is wrong. You can get other answers for other kinds of ounces, but not $24$.
$endgroup$
– almagest
May 4 '16 at 14:59
add a comment |
1
$begingroup$
That is fine and gives $450/21.2625=21.16$, so answer $21$ servings. The answer book is wrong. You can get other answers for other kinds of ounces, but not $24$.
$endgroup$
– almagest
May 4 '16 at 14:59
1
1
$begingroup$
That is fine and gives $450/21.2625=21.16$, so answer $21$ servings. The answer book is wrong. You can get other answers for other kinds of ounces, but not $24$.
$endgroup$
– almagest
May 4 '16 at 14:59
$begingroup$
That is fine and gives $450/21.2625=21.16$, so answer $21$ servings. The answer book is wrong. You can get other answers for other kinds of ounces, but not $24$.
$endgroup$
– almagest
May 4 '16 at 14:59
add a comment |
2 Answers
2
active
oldest
votes
$begingroup$
$450$ grams is about a pound. (I think it's closer to $454$ grams.)
So doing the ratio gives
$$16 text{ ounces} times frac{1 text{ serving}}{3/4 text{ ounce}} = 21 text{ servings and change.}$$
I think you're right, and the answer key is wrong.
answered May 4 '16 at 15:00
JohnJohn
22.7k32450
$endgroup$
add a comment |
$begingroup$
You need to change grams to ounces.
450 grams=18 ounces.
3/4=.75
18 divided by .75
= 24ounces.
The answer key is right.
Cheers,
Renee Matheson
answered Dec 18 '18 at 19:41
Renee MathesonRenee Matheson
11
$endgroup$
add a comment |
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2 Answers
2
active
oldest
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2 Answers
2
active
oldest
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active
oldest
votes
$begingroup$
$450$ grams is about a pound. (I think it's closer to $454$ grams.)
So doing the ratio gives
$$16 text{ ounces} times frac{1 text{ serving}}{3/4 text{ ounce}} = 21 text{ servings and change.}$$
I think you're right, and the answer key is wrong.
answered May 4 '16 at 15:00
JohnJohn
22.7k32450
$endgroup$
add a comment |
$begingroup$
$450$ grams is about a pound. (I think it's closer to $454$ grams.)
So doing the ratio gives
$$16 text{ ounces} times frac{1 text{ serving}}{3/4 text{ ounce}} = 21 text{ servings and change.}$$
I think you're right, and the answer key is wrong.
answered May 4 '16 at 15:00
JohnJohn
22.7k32450
$endgroup$
add a comment |
$begingroup$
$450$ grams is about a pound. (I think it's closer to $454$ grams.)
So doing the ratio gives
$$16 text{ ounces} times frac{1 text{ serving}}{3/4 text{ ounce}} = 21 text{ servings and change.}$$
I think you're right, and the answer key is wrong.
answered May 4 '16 at 15:00
JohnJohn
22.7k32450
$endgroup$
$450$ grams is about a pound. (I think it's closer to $454$ grams.)
So doing the ratio gives
$$16 text{ ounces} times frac{1 text{ serving}}{3/4 text{ ounce}} = 21 text{ servings and change.}$$
I think you're right, and the answer key is wrong.
answered May 4 '16 at 15:00
JohnJohn
22.7k32450
answered May 4 '16 at 15:00
JohnJohn
22.7k32450
answered May 4 '16 at 15:00
JohnJohn
22.7k32450
answered May 4 '16 at 15:00
JohnJohn
22.7k32450
22.7k32450
add a comment |
add a comment |
$begingroup$
You need to change grams to ounces.
450 grams=18 ounces.
3/4=.75
18 divided by .75
= 24ounces.
The answer key is right.
Cheers,
Renee Matheson
answered Dec 18 '18 at 19:41
Renee MathesonRenee Matheson
11
$endgroup$
add a comment |
$begingroup$
You need to change grams to ounces.
450 grams=18 ounces.
3/4=.75
18 divided by .75
= 24ounces.
The answer key is right.
Cheers,
Renee Matheson
answered Dec 18 '18 at 19:41
Renee MathesonRenee Matheson
11
$endgroup$
add a comment |
$begingroup$
You need to change grams to ounces.
450 grams=18 ounces.
3/4=.75
18 divided by .75
= 24ounces.
The answer key is right.
Cheers,
Renee Matheson
answered Dec 18 '18 at 19:41
Renee MathesonRenee Matheson
11
$endgroup$
You need to change grams to ounces.
450 grams=18 ounces.
3/4=.75
18 divided by .75
= 24ounces.
The answer key is right.
Cheers,
Renee Matheson
answered Dec 18 '18 at 19:41
Renee MathesonRenee Matheson
11
edited Dec 18 '18 at 19:47
answered Dec 18 '18 at 19:41
Renee MathesonRenee Matheson
11
answered Dec 18 '18 at 19:41
Renee MathesonRenee Matheson
11
answered Dec 18 '18 at 19:41
Renee MathesonRenee Matheson
11
11
add a comment |
add a comment |
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1
$begingroup$
That is fine and gives $450/21.2625=21.16$, so answer $21$ servings. The answer book is wrong. You can get other answers for other kinds of ounces, but not $24$.
$endgroup$
– almagest
May 4 '16 at 14:59