1)4*2=8кг-масса 4-х пакетов муки.
2)3*2=6кг-весят 3 гири по 2 кг.
3)8-6=2кг-нужно добавить одну гирю.
Ширина равна 12:4=3
Периметр равен (12+3)=30
Площадь равна 12*3=36
S=36 P=30
Верный Ответ будет 158449.
7*7+7*7= 49+49=98
т.к. а+b=14 , делим и получаем 7
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1. Математическое выражение, стоящее под
знаком обыкновенной дроби.
2. Как на Руси называли дроби?
3. Кто впервые в Европе ввёл десятичные
дроби?
4. Математическое выражение, стоящее над
знаком обыкновенной дроби.
5. Формат дроби.
6. В какой стране впервые
встречаются десятичные дроби?
7. Как называется эта дробь 9/8
?
8. Формат дроби.
9. Греческий математик, который
ввёл слова «числитель» и «знаменатель» в оборот?
10. Число, состоящее из одной или
несколько частей (долей) единицы?