Answer:
5 pounds
Step-by-step explanation:
Given that:
Amount of gift card = $80
Cost of coffee per pound = $8.24
Amount left in the card = $38.80
To find:
Number of pounds of coffee bought = ?
Solution:
Let the number of pounds of the coffee bought =
pounds
Cost of 1 pound = $8.24
Cost of
pounds = $8.24 ![\times x](https://tex.z-dn.net/?f=%5Ctimes%20x)
Writing the equation as per question statement:
![80 - 8.24x = 38.80\\\Rightarrow 80 - 38.80 = 8.24x\\\Rightarrow 8.24x = 41.2\\\Rightarrow x = \dfrac{41.2}{8.24}\\\Rightarrow \bold{x = 5\ pounds}](https://tex.z-dn.net/?f=80%20-%208.24x%20%3D%2038.80%5C%5C%5CRightarrow%2080%20-%2038.80%20%3D%208.24x%5C%5C%5CRightarrow%20%208.24x%20%3D%2041.2%5C%5C%5CRightarrow%20x%20%3D%20%5Cdfrac%7B41.2%7D%7B8.24%7D%5C%5C%5CRightarrow%20%5Cbold%7Bx%20%3D%205%5C%20pounds%7D)
Therefore, 5 pounds of coffee was bought.
1 trillion can be written as 1,000,000,000,000
1 billion can be written as 1,000,000,000
There are 3 more 0’s in 1 trillion than there are in 1 billion, so therefore 1 trillion is 1,000 times greater than 1 billion.
If you have any further questions feel free to ask.
Hope this helps
Answer: B) 3+y+3
This can be simplified to y+6, but the current un-simplified expression has 3 terms.
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Explanation:
Terms are separated by a plus sign. If you had something like 10x-5y, then you would write that as 10x+(-5y) showing that 10x and -5y are the two terms.
Choices A and C, xy and 6y respectively, have one term each. They are considered monomials. Mono = one, nomial = name.
Choice D is the product of the constant 3 and the binomial y+3. Binomials have two terms.
Only choice B has three terms, though we can simplify it down to two terms. I have a feeling your teacher doesn't want you to simplify it.
7 memory sticks at 32 mb can hold 491 * 7 = 3437 images.
Answer:
D has no solution
I hope this helps a little bit.