Question

Determine if 2.510=?1248
or 2.52=?1224
is a proportion.(1 point)
Responses

2.52=1224

Start Fraction 2.5 over 2 End Fraction equals Start Fraction 12 over 24 End Fraction

Neither is a proportion.
Neither is a proportion.

Both are proportions.
Both are proportions.

2.510=1248

Answer 1

Interpreting 1248 as 12/48 and 1224 as 12/24:

- 2.5/10 = 12/48 — Yes. 2.5/10 = 0.25 and 12/48 = 0.25 (or cross-multiply: 2.5·48 = 10·12 = 120).
- 2.5/2 = 12/24 — No. 2.5/2 = 1.25 while 12/24 = 0.5 (cross-multiply: 2.5·24 = 60 ≠ 2·12 = 24).

So only 2.5/10 = 12/48 is a proportion.