Answer:
7.2 minutes per mile
Step-by-step explanation:
If we assume the description means y = 7.2x, the rate 7.2 means each increase in x of 1 mile results in an increase in y of 7.2 minutes. That is the rate is 7.2 minutes per mile.
Answer:
58 students
Step-by-step explanation:
Given
![Total = 85](https://tex.z-dn.net/?f=Total%20%3D%2085)
![French = 27](https://tex.z-dn.net/?f=French%20%3D%2027)
![Geometry = 51](https://tex.z-dn.net/?f=Geometry%20%3D%2051)
![History = 38](https://tex.z-dn.net/?f=History%20%3D%2038)
![None = 5](https://tex.z-dn.net/?f=None%20%3D%205)
![All = 2](https://tex.z-dn.net/?f=All%20%3D%202)
Required
Students that take only 1 subjects
The attached image illustrates the question.
For French only (x), we have:
![x + 7 -2+10-2+2=27](https://tex.z-dn.net/?f=x%20%2B%207%20-2%2B10-2%2B2%3D27)
![x + 15=27](https://tex.z-dn.net/?f=x%20%2B%2015%3D27)
Collect like terms
![x =- 15+27](https://tex.z-dn.net/?f=x%20%3D-%2015%2B27)
![x =12](https://tex.z-dn.net/?f=x%20%3D12)
For Geometry only (y), we have:
![y+10-2+15-2+2=51](https://tex.z-dn.net/?f=y%2B10-2%2B15-2%2B2%3D51)
![y+23=51](https://tex.z-dn.net/?f=y%2B23%3D51)
Collect like terms
![y=-23+51](https://tex.z-dn.net/?f=y%3D-23%2B51)
![y=28](https://tex.z-dn.net/?f=y%3D28)
For History only (z), we have:
![z +15-2+7-2+2=38](https://tex.z-dn.net/?f=z%20%2B15-2%2B7-2%2B2%3D38)
![z +20=38](https://tex.z-dn.net/?f=z%20%2B20%3D38)
Collect like terms
![z =-20+38](https://tex.z-dn.net/?f=z%20%3D-20%2B38)
![z =18](https://tex.z-dn.net/?f=z%20%3D18)
Students with one subject is then calculated as:
![1\ subject = x+y+z](https://tex.z-dn.net/?f=1%5C%20subject%20%3D%20x%2By%2Bz)
![1\ subject = 12 + 28 + 18](https://tex.z-dn.net/?f=1%5C%20subject%20%3D%2012%20%2B%2028%20%2B%2018)
![1\ subject = 58](https://tex.z-dn.net/?f=1%5C%20subject%20%3D%2058)
Answer:
The area of the rectangular coral = 2,976 ft²
Step-by-step explanation:
Bryce has 220 ft of fencing to fence a rectangular coral.
Let the dimensions of the corral be x ft. × y ft.
One side of the coral is 48 ft. long
A rectangle has 4 sides, with each of the two opposite sides with the same dimension. Hence, the perimeter of the rectangular coral = 2(x + y) = 2x + 2y.
Total length of material for fencing = 220 ft.
Hence the perimeter of the reef = 220 ft.
2x + 2y = 220
And one length of the rectangular coral = x = 48 ft.
We can solve for the remaining dimension of the rectangular coral this way.
2(48) + 2y = 220
2y = 220 - 96 = 124
y = (124/2) = 62 ft.
Hence, the area of the rectangular coral = xy = 48 × 62 = 2,976 ft²
Hope this Helps!!!
Answer:
B.
Step-by-step explanation:
Answer:
Both distances are in the scientific notation:
Earth - Sun = 9.3 * 10^7 miles
Saturn - Sun = 8.87 * 10^8 miles
8.87 * 10^8 - 9.3 * 10^7 =
= 88.7 *10^7 - 9.3 * 10^7 =
= 79.4 * 10^7 = 7.94 * 10 ^8 = 794,000,000 miles
Answer: Saturn is 7.94 * 10^8 miles farther from Sun than Earth is.
Step-by-step explanation:
I hope this helps you :)
-KeairaDickson