How do you write 5 is to 1 as 20 is to 4 as a proportion in fractional notation?(1 point)
5 is to 1 as 20 is to 4 can be written as:
5/1 = 20/4
You fill your car with 15 gallons of gas at a cost of $45. Using fractional notation, how do you write a proportion that shows how much 5 gallons of gas will cost? Use x to represent the unknown cost.(1 point)
The proportion can be written as follows:
15/45 = 5/x
Determine if 2.510=?1248 or 2.52=?1224 is a proportion.(1 point)
To determine if 2.510 = 1248 or 2.52 = 1224 is a proportion, we need to check if the two ratios are equal.
For the first option: 2.510 = 1248
To check if this is a proportion, we divide both sides of the equation by 2.510:
2.510/2.510 = 1248/2.510
1 = 494.422
Since 1 is not equal to 494.422, this is not a proportion.
For the second option: 2.52 = 1224
To check if this is a proportion, we divide both sides of the equation by 2.52:
2.52/2.52 = 1224/2.52
1 = 485.714
Again, since 1 is not equal to 485.714, this is not a proportion either.
Therefore, neither 2.510 = 1248 nor 2.52 = 1224 is a proportion.
Determine if one, both, or neither of the following is a proportion. 168=?2412, 84=?126(1 point)bgt5f4r
To determine if 168 = 2412 or 84 = 126 is a proportion, we need to check if the two ratios are equal.
For the first option: 168 = 2412
To check if this is a proportion, we divide both sides of the equation by 168:
168/168 = 2412/168
1 = 14.357
Since 1 is not equal to 14.357, this is not a proportion.
For the second option: 84 = 126
To check if this is a proportion, we divide both sides of the equation by 84:
84/84 = 126/84
1 = 1.5
Since 1 is equal to 1.5, this is a proportion.
Therefore, only 84 = 126 is a proportion.