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krystalhurst97
01.01.2021 •
Mathematics
35% of the number of students are boys and if number of girls is 416 then find the total number of students and the number of boys
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Ответ:
total students = 640
number of boys = 640-416 = 225
Step-by-step explanation:
percentage of girls = 100-35 = 65%
let total number of students be x
100*416/x = 65
41600/x = 65
x= 41600/x
x= 640
Ответ:
Step-by-step explanation:
1. ENCUENTRA UN DENOMINADOR COMUN
Los denominadores que nos dan son: 4, 2, 5, y 3
Encuentra un numero que es comun cuando multiplicas, seria 60.
2. MULTIPLICA EL NOMINADOR POR LO QUE MULTIPLICASTE EL DOMINADOR
Carne=![\frac{7}{4} kg=\frac{105}{60} kg](/tpl/images/0668/3024/711fb.png)
Arroz=![\frac{1}{2} kg=\frac{30}{60} kg](/tpl/images/0668/3024/84aa3.png)
Fruta=![\frac{3}{5} kg=\frac{36}{60} kg](/tpl/images/0668/3024/af9e5.png)
Papa=![\frac{1}{3} kg= \frac{20}{60} kg](/tpl/images/0668/3024/f00d0.png)
3. SUMA LAS FRACIONES
Ahora que tienen el mismo denominador, puedes sumar las fraciones