Answer:
19,419.09
Step-by-step explanation:
Answer:
30
40 - 5x
Step-by-step explanation:
Caroline is taking test worth 40 points that has 5 points per question. If she got 2 questions wrong, she would have a score of `30.
2 × 5 = 10
40 - 10 = 30
If Caroline got x questions wrong, she would have a score of 40 - 5x.
Answer: $1846.64
Step-by-step explanation:
Given : The average summer vacation costs $2252.
If 82% of this amount is charged on credit cards, then the amount of the vacation cost is charged will be :-
![82\%\text{ of }\$2252\\\\\text{Convert percent into fraction by dividing it by 100, we get}\\\\=\$[\dfrac{82}{100}\times2252]\\\\=\$[\dfrac{184664}{100}]\\\\=\$1846.64](https://tex.z-dn.net/?f=82%5C%25%5Ctext%7B%20of%20%7D%5C%242252%5C%5C%5C%5C%5Ctext%7BConvert%20percent%20into%20fraction%20by%20dividing%20it%20by%20100%2C%20we%20get%7D%5C%5C%5C%5C%3D%5C%24%5B%5Cdfrac%7B82%7D%7B100%7D%5Ctimes2252%5D%5C%5C%5C%5C%3D%5C%24%5B%5Cdfrac%7B184664%7D%7B100%7D%5D%5C%5C%5C%5C%3D%5C%241846.64)
Therefore the amount of the vacation cost is charged= $1846.64
Answer:
Step-by-step explanation:
We group the number 5:
5(x² + 3x + 2.25)
Now inside the brackets we'll take the square root of the coefficient of the x and the square root of the last number, then remove the square from the x and write it as a sum:
5(x+1.5)²
What's the idea behind this?
Well, remember that when you have something in the form:
(a+b)²
It actually means:
a² + 2ab + b²
In our case a was x, and b was 2.25. For bringing it into the shorter form we have to take the square root of a and b.
Sorry if you don't understand. Tell me if you need help to get the xoncept better.
