The phrase "approximately double the value" is correct and usable in written English.
You can use it when discussing numerical comparisons or estimations in various contexts, such as finance, science, or statistics.
Example: "The new model's performance is approximately double the value of the previous version, indicating significant improvements."
Alternatives: "roughly twice the amount" or "about two times the value".
The molecular weights indicated by these two methods were comparable and approximately double the value of the apparent molecular weight of rPsaDyP under denaturing conditions (57.6 kDa).
All three future scenarios were for the year 2025 and assumed a total ethanol production of 24.3 billion gallons (92.0 billion liters), which is approximately double the value in 2013.
This is approximately double the value likely to have existed before the amino acid infusion of 0.044%/h, which has been observed routinely in postabsorptive men (e.g., see Refs. 3, 25, and 31).
Finally, in Verbascum, if we exclude the tetraploid V. virgatum with approximately double the value of genome size of the remaining species, the other taxa presented very similar genome sizes.
Median concentration of urinary arsenic in infants at 6 months was approximately double the value at 1 month (16.4 μg/L; 10th – 90th percentiles are 6.6 μg/L – 36 μg/L).> Maternal median urinary arsenic concentration at 1 month was 134 μg/L, 10th – 90th percentiles were 25 μg/L – 330 μg/L.
A maximum PAA production efficiency of 19.87% was obtained, a value much higher than previous works based on the oxidation of acetic acid by BDD anodes and approximately double the optimal value reported in studies based on the production of hydrogen peroxide.
Though grazing of the study units was always disproportionately heavy, it was much heavier with the summer than fall stocking regime: Bayesian confidence intervals indicate summer grazing of study units was approximately double the average fall grazing value.
Application of the ACNR technique approximately doubled the SDNR values, hence increasing tumor visibility, while scatter correction had little effect on SDNR values.
The thickness of the films are plotted in Figure 9: the values obtained with 10-3 M approximately double the ones registered with 10-4 M due to the lower concentration.
