The answer is the third option.
The explanation is shown below:
1. You must keep on mind the information given in the exercise:
- She bough 3 pounds of coffee.
- She bought 2 pounds of chocolate.
- She spent a total of $24.
2. Therefore, you can call the price per pound of coffee and the price per pound of chocolate .
3. When you multiply 3 pounds by the price per pound of coffee, you obtain the amount of money she spent for 3 pounds. When you multiply 2 pounds by the price per pound of chocolate, you obtain the amount of money she spent for 2 pounds. If you add both amounts, you obtain the total spent, which was $24.
4. Therefore, you can express this as following:
Answer: 5%
Step-by-step explanation:
Probability for any event =
Given: Number of defective calculators = 25
Total calculators = 500
The probability that a calculator chosen at random will be defective=
Hence, the required probability = 5%
Answer:
3.
Step-by-step explanation:
Rearrange to make it easier: 6*x+3*y-(12)=0
Find like factors and eliminate them: 6x + 3y - 12 = 3 x (2x + y - 4)
So then you get 3 = 0. So y would be 3.
283 rounded to the nearest ten is 280
When rounding to the nearest ten look at the number to the right of the place you are rounding. In this case it is the 3. If the number is 5 or higher you go up to the nearest ten. If the number is lower than 5 like it is in this number you round down to the nearest ten.
Answer:
Option D is correct.
Step-by-step explanation:
The relationship between any point on an ellipse and each of its foci is:
The sum of the distances to each focus equals a certain constant. The constant will be 2a
If d₁ and d₂ are the distances then their sum is d₁ + d₂ = 2a.
Option D is correct.