plugyournose
New member
- Joined
- Nov 12, 2010
- Messages
- 2
I have 2 word problems. I know the answer to one but don't necessarily understand how the answer came to be.
1. An apple has 29 more calories than a peach and 13 fewer calories than a banana. If a peach has p calories, then there are ____ calories in a fruit salad made with one apple, two peaches, and one banana.
=======================
apple= p+29
peach= p
banana= p+13 (I though you'd have to subtract 13 from 29 but it's the opposite. Why and how? Is it saying, since an apple has 29 more calories than a peach, a banana should have 13 more than a peach or since an peach has 29 less than an apple, a banana should have 13 more than a peach? *confused*)
A= (p+29)+2p+(p+42).
Initially I got, (p+29)+2p+(p16)
2. A cup of peanuts contains 8 more grams of carbohydrates than a cup of walnuts and 1 less gram than a cup of almonds. If a cup of walnuts contains w grams of carbohydrates, then a mix of one cup each of peanuts, walnuts, and almonds contains _____ grams of carbohydrates?
========================
peanuts= w+8
walnuts= w
almonds= w+1
(w+8)+w+(w+9)
Is this correct?
I just do not understand the processes of solving word problems like these so a step by step of how you twisted the words around to get the answers would help.
1. An apple has 29 more calories than a peach and 13 fewer calories than a banana. If a peach has p calories, then there are ____ calories in a fruit salad made with one apple, two peaches, and one banana.
=======================
apple= p+29
peach= p
banana= p+13 (I though you'd have to subtract 13 from 29 but it's the opposite. Why and how? Is it saying, since an apple has 29 more calories than a peach, a banana should have 13 more than a peach or since an peach has 29 less than an apple, a banana should have 13 more than a peach? *confused*)
A= (p+29)+2p+(p+42).
Initially I got, (p+29)+2p+(p16)
2. A cup of peanuts contains 8 more grams of carbohydrates than a cup of walnuts and 1 less gram than a cup of almonds. If a cup of walnuts contains w grams of carbohydrates, then a mix of one cup each of peanuts, walnuts, and almonds contains _____ grams of carbohydrates?
========================
peanuts= w+8
walnuts= w
almonds= w+1
(w+8)+w+(w+9)
Is this correct?
I just do not understand the processes of solving word problems like these so a step by step of how you twisted the words around to get the answers would help.