Did i get this word problem right?

Question

It says: Suppose one egg contains 25 milligrams of calcium, a piece of toast contains 40 milligrams of calcium, and a glass of milk contains 215 milligrams of calcium. How many milligrams of calcium are contained in a breakfast that consists of three eggs, two glasses of milk, and four pieces of toast?

I got 1095 mg while the book said 665 mg

Answer 1

I got 665 mg:

Egg = 25

Toast = 40

Milk = 215

3 x 25 = 75

2 -x 215 = 430

4 x 40 = 160

75 + 430 + 160 = 665 mg

Answer 2

Okay;

1 egg = 25mg Ca

1 toast = 40mg Ca

1 milk = 215mg Ca

Breakfast = 3 egg + 2 milk + 4 toast

               = 3 * 25 + 2 * 215 + 4 * 40

The book is right; what you did was assume that the breakfast listed placed the foods in the same order as when their calcium content was given.  Note how it's first listed egg, toast, milk, then for breafast eggs, milk, toast.

You accidentally multiplied the milk value, which was listed last when giving the calcium content, by four, which is how much toast you have, instead of by the two glasses given.

Answer 3

no

Answer 4

Wrong.

Answer 5

665 is right.

25 x 3 =75mg for eggs

40 x 4 =160mg for toast

215 x 2 = 430mg for milk

so, 75+160+430= 665

Answer 6

its 665.

Answer 7

nope its 665mg

3 eggs= 25x3=75

2 glasses=215x2=430

4 toast= 40x4=160

=665mg

Answer 8

what the h**l

Answer 9

i got 1350!

Answer 10

The book is right--

three eggs, two glasses of milk, and four pieces of toast means

3 times 25       or 75  mg

2 times  215    or 430  mg

4 times 40       or 160 mg

and 75 + 430 + 160 is 665 mg.

Answer 11

I got what the book got.

25 X 3

40 X 4

215 X 2

Add 'em all together

Answer 12

that does not make any sence?!?!?

Answer 13

you some how added wrong..



3 eggs:                         2 glasses milk:                    4 toast:

              25                                         215                           40

              25                                         215                           40

           + 25                                      + 215                           40

         -----------                                  ------------                     +  40

            75 mg                                     430 mg                 ------------

                                                                                          160 mg

75 + 430 + 160 =  665mg

Answer 14

the book is correct.

Answer 15

It's simple addition. How could you get this wrong?

Answer 16

the book is correct. i added it myself.

Answer 17

why would u go against the book..i did that once and learned a lesson..believe in the book..the book will never steer u in the wrong path..the book is ur friend and ur answer..lol  

Answer 18

its 665

Answer 19

665 is correct.

you need to times 25 by 3 for the eggs = 75

2 x 215 for the milk = 430

4 x 40 for the toast = 160

then add them all together to make 665mg

Answer 20

oh i got it. multiply 25 with 3=75

40 with 4=160

215 with 2=430

add them you will get 665

Answer 21

3x25 + 4x40 +2x215 =665

Answer 22

how the heck do you get 1095

Answer 23

the eggs is times 3. the milk is times 2.an the toast is times 4.. that equal 665.00....

hope that help

Answer 24

25 + 25 + 25 for eggs = 75

215 + 215 for milk = 430

40 + 40 + 40 + 40 for toast = 160

75 + 430 + 160 = 665

Answer 25

1 egg = 25

1 toast = 40

1 milk = 215

so 3 eggs = 25 * 3 = 75

4 toast - 40 * 4 = 160

2 milk = 215 * 2 = 430

75 + 160 + 430 = 665.

Answer 26

It is 665 mg.

1 egg at 25 mg X 3 = 75

1 toast at 40 mg X 4 = 160

1 milk at 215 X 2 = 430

Add 75+160+430 = 665 mg

:)

Answer 27

yeah you got it wrong becasue you just add them up

so

3 eggs would be 75 mg

+

2 glasses of milk would be 430

+

4 pieces of toast would be 160

=

75+430+160 equals 665 mg

Answer 28

3*25

+

2*215

+

4*40

= 665mg