Answer:
AC =4DB
Step-by-step explanation:
D is midpoint of AB .So, AD = DB
AB = 2DB ---------- (i)
B is the midpoint of AC.So, AB = BC
AC = 2AB
= 2*2DB {FROM 1}
=4DB
So what this means is that you want to translate a word problem into an equation of some sort.
For example, if the word problem is:
John has 3 apples and Mike has 4 apples. How many apples do they have together?
The expression would be:
3 + 4 = 7
Let me know if that makes sense to you.
Answer: Need to clarify more about the question, I dont understand. Sorry ;//
Step-by-step explanation:
If you would like to know how many pounds of each kind of candy must the grocer use to make 100 pounds worth 85 cents a pound, you can calculate this using the following steps:
Candy number 1:
c pounds = ? ... 90 cents a pound
Candy number 2:
d pounds = ? ... 40 cents a pound
c + d = 100 pounds
c = 100 pounds - d
c * 90 cents + d * 40 cents = 100 pounds * 85 cents
(100 - d) * 90 + d * 40 = 100 * 85
100 * 90 - 90 * d + d * 40 = 100 * 85
100 * 90 - 100 * 85 = 90 * d - 40 * d
500 = 50 * d
d = 500 / 50
d = 10 pounds
c = 100 pounds - d = 100 - 10 = 90 pounds
There should be 90 pounds of candy number 1 and 10 pounds of candy number 2.
90 pounds * 90 cents + 10 pounds * 40 cents = 8500 cents per 100 pounds
8500 cents / 100 pounds = 85 cents a pound
Answer:
Step-by-step explanation:
An easy way to get exponents done if you're dealing with a multiple of 10, is to count the number of 0's present.
Since there are 3 0's in 1000, 10*10*10 = 1000 which just so happens to be the exponent needed