The ratio of 2.5 to 7.5 is equivalent to ( ). A. 2:7B. 7:2C. 3:1D. 1:3相关知识点: 试题来源: 解析 D 2.5:7.5=(2×2.5):(2×7.5)=5:15=1:3. 2.5:7.5=( ). A.2:7 B.7:2 C.3:1 D.1:3 2.5:7.5=(2×2.5):(2×7.5)=5:15=1:3. 故选D....
Variables used for this study were gender, age, living conditions, education level (with five levels according to the French education system and corresponding to the following categories: no schooling, primary school level [equivalent to 1–5 years of education], secondary school level with 6–9...
60 sausages : 16 bottles. On the other hand, if we wanted to invite only the 5 closest friends (half the initial number), we need to divide the initial number of sausages and bottles by 2: 15 sausages : 4 bottles. We have here three equivalent ratios: they all correspond to the same...
Also, in electrical applications high aspect ratio fillers give good performance at substantially lower concentrations and a typical aspect ratio is in a range from 20 to 100. The initial aspect ratio of filler is not necessarily retained in the final product because of degradation of fiber length...
aThe ratio of alkali equivalent (EQL) to sulfur equivalent (EQS) is 1.01. The mixture is heated to T=190.degree. C. with stirring, and 145 ml of water containing NMP is distilled off 碱比率等效(EQL)与硫磺等值(EQS)是1.01。 混合物被加热对T=190.degree。 C. 以搅动和145机器语言水包含NMP...
aThe ratio of alkali equivalent (EQL) to sulfur equivalent (EQS) is 1.01. The mixture is heated to T=190.degree. C. with stirring, and 145 ml of water containing NMP is distilled off. 碱比率等效(EQL)与硫磺等值(EQS)是1.01。 混合物被加热对T=190.degree。 C. 以搅动和145机器语言水包含...
16 h. Cells were harvested via centrifugation at 4 °C. Pellets were resuspended in 50 ml of 50 mM Tris pH 8, 100 mM NaCl, 5% Glycerol, 1 mM MgCl2, 5 mM dithiothreitol and 0.5 mM phenylmethyl sulphonyl fluoride. Cells were lysed via sonication and centrifuged to ...
¼. therefore, the ratio equivalent to 25% is ¼. test your knowledge on ratio to percentage q 5 put your understanding of this concept to test by answering a few mcqs. click ‘start quiz’ to begin! select the correct answer and click on the “finish” button check your score and...
140:7, which simplifies to 20:1 Q What are equivalent ratios? A Equivalent ratios are two different ratios that equal one another. Ex. 2:4 and 1:2 What is a Ratio? PDF Your What is a Ratio PDF Download Ratio Practice Questions ...
Models of cars and buildings are often made in ratios of 1:20 to 1:40, while for maps the scaling is often much higher, for example 1:1,000,000 which means that 1 cm on the map would be 1,000,000 cm in real life (10 kilometers). ...