1.4 x 3 1/2 × 10 to the 3rd
= 4.9 x 10^3
1.4 x 3 1/2 × 10 to the 3rd decimal answer
= 4900.
48 corn seeds sprouted. This was 75% of the seeds that were planted. How many of the plants did not sprout?
Let's start by using algebra. Let's call the total number of seeds that were planted "x". We know that 75% of these seeds sprouted, or in other words, 0.75x sprouted. We also know that the number of sprouted seeds is 48. So we can set up an equation:
0.75x = 48
Now we can solve for x:
x = 48 ÷ 0.75
x = 64
So there were 64 seeds planted in total. We can use this information to calculate how many seeds did not sprout:
Number of seeds that did not sprout = Total number of seeds - Number of seeds that sprouted
Number of seeds that did not sprout = 64 - 48
Number of seeds that did not sprout = 16
So 16 of the seeds did not sprout.
The sale price of $24 was 60% of the regular price. What was the regular price?
Let's start by using algebra. Let's call the regular price "x". We know that the sale price was 60% of the regular price, or in other words, 0.6x. We also know that the sale price was $24. So we can set up an equation:
0.6x = 24
Now we can solve for x:
x = 24 ÷ 0.6
x = 40
So the regular price was $40.
Is racial box to solve this problem. Nine is the six is what number is the 30?
I'm sorry, I don't fully understand the question. Could you please provide more context or clarify what you mean by "racial box"?
Use a ratio box to solve this problem. nine is to six as what number is to 30?
Sure, we can set up a ratio box to solve this problem:
| | 9 | 6|
|---|---|---|
| x | | 30|
To find the missing value x, we need to fill in the blank box by using the ratios of the other boxes. In other words, we can find the ratio of 9 to 6 (which is 3:2) and apply that same ratio to the other pair of numbers.
To do this, we can cross-multiply to get:
9 * 30 = 6 * x
Simplifying this equation, we get:
270 = 6x
Dividing both sides by 6, we get:
x = 45
So the missing number is 45, and the completed ratio box looks like this:
| | 9 | 6|
|---|---|---|
| x | 45| 30|
The Martins drove the car from 7:00 a.m. to 4:00 p.m. and traveled 468 mi. Their average speed is how many miles per hour?
To calculate the average speed, we need to divide the total distance traveled by the time taken to travel that distance.
The time taken by the Martins is from 7:00 a.m. to 4:00 p.m., which is a total of 9 hours (since there are 9 hours between 7:00 a.m. and 4:00 p.m.).
Therefore, their average speed is:
Average speed = Total distance traveled ÷ Time taken
Average speed = 468 miles ÷ 9 hours
Average speed = 52 miles per hour
So the Martins' average speed was 52 miles per hour.
Use a ratio box of stuff is problem. The ratio of cookies to Veterans of the campus 2 to 7. All together there were 250 turkeys and veterans in the game. How many of them were rookies?
Sure, we can set up a ratio box to solve this problem:
| |Cookies|Veterans|
|---|---|---|
|Ratio|2|7|
| | ? | ? |
The ratio of cookies to Veterans is 2:7, which means that for every 2 cookies there are 7 Veterans on campus. Since our goal is to find the number of cookies, let's fill in the number of Veterans.
We know that the total number of cookies and Veterans combined is 250. Using the ratio 2:7, we can write an equation to represent the total number of Veterans:
7x = total number of Veterans
where x is the number of cookies.
We also know that the total number of cookies and Veterans combined is 250, so we can add the number of cookies to the number of Veterans to get:
x + 7x = 250
Simplifying this equation, we get:
8x = 250
Dividing both sides by 8, we get:
x = 31.25
Since we can't have a fraction of a cookie, we'll round down to the nearest whole number. Therefore, there were 31 cookies on campus.
To double-check our answer, we can add up the number of cookies and Veterans:
Number of cookies + Number of Veterans = 31 + 219 (since 7x = 219)
Number of cookies + Number of Veterans = 250
So there were indeed 250 cookies and Veterans combined, and 31 of them were cookies.