Answer:
The answer to your question is 2.8 x 10¹¹
Step-by-step explanation:
Data
1 tree produces 2.6 x 10² pounds of oxygen/year
number of trees = 3.9 x 10¹¹
pounds of oxygen per day = ?
Process
1.- Divide the pounds of oxygen by 365, to get the pounds of oxygen per day.
2.6 x 10² / 365 = 0.712
2.- Multiply the number of trees by the pounds of oxygen per day
3.9 x 10¹¹ x 0.712 = 2.8 x 10¹¹ pounds of oxygen
Answer:
Nearest ten-350
Nearest hundred-300
Step-by-step explanation:
#When rounding to the nearest ten, we look at the ones digits in a number:
- If the ones digit is 0, 1, 2, 3, or 4, you will round down to the previous ten
- If the ones digit is 5, 6, 7, 8, or 9, you will round up to the next ten
Given the number 348, 8 in the ones digit greater than 4 so we round to the next ten:
348 ≈350
#When rounding to the nearest hundred, we look at the tens digits in a number:
- If the ones digit is less than 5 you will round down to the previous hundred
- If the ones digit is greater than 4, you will round up to the next hundred
Given the number 348, 4 in the tens digit less than 5 so we round down to the previous hundred:
348 ≈300
X=4 and y=6
For this, you should use simultaneous equations
Answer:
Step-by-step explanation:
Hi Millie.
First we can realize that the number of cubes of each type does not matter, only the ratios between them. We see that if there are x yellow cubes, there are 3x blue cubes. And therefore, there are 5*3x green cubes, or 15x green cubes. This means that the cubes are in a 1:3:15 ratio, or that for every 1 yellow cube, there are 3 blue and 15 green cubes.
Now we can find the probability of picking a yellow cube. Since there are 18 non-yellow cubes for every yellow cube, this means that there is a 1/19 possibility of picking a yellow cube.
