R=8+I
S=4R
R+I+S=112
R+R-8+4R=112
6R=120
R=20
So therefore, Ruby worked 20 hours, Svetlana worked 80 hours, and Isaac worked 12 hours.
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Answer:
3. Reflexive property of congruence
(since the statement states that a segment is congruent to itself)
4. SSS
(since 3 sides of one triangle are congruent to three sides of the other triangle)
Answer:
Step-by-step explanation:
we are given different angles
we can see that each angles have different denominators
so, firstly we will find common denominators
denominators are 1 , 2,3,4,6
so, LCD will be 12
now, we will make denominator of all terms 12
we can see that denominators are same
so, we can arrange it according to numerators as
we can replace values
and we get order as
Where is the picture ?? I don’t understand ok
Answer:
Step-by-step explanation:
Dado que:
Um técnico em eletricidade recebeu um pacote que continha 12 chaves não identificadas, a probabilidade de que ele acertasse na primeira vez será:
= número de ensaios / número total de ensaios disponíveis
O técnico eletricista tem apenas uma tentativa
uma vez que existem 12 chaves não identificadas, o número total de testes disponíveis 12
∴
= 1/12
= 0.0833
= 0.0833 × 100
= 8.33%