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bezimeni [28]
3 years ago
6

The ratio of red marbles to blue marbles in a jar is 3 to 8. There are 40 blue marbles in the jar.

Mathematics
2 answers:
ddd [48]3 years ago
7 0

Answer:

15

Step-by-step explanation:

Pie3 years ago
3 0
_red_ = _3_              (set up problem) 
blue        8 

blue=40  R=red          (define terms) 

_ R_ = _3_                    (cross multiply) 
  40        8

8R=120            (divide by 8 on both sides)

R=15 

The answer is B.15 





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Answer:

The factored form a^2-121 is (a+11)(a-11).

Step-by-step explanation:

Given : a^2-121

We have to write the given expression in factored form.

Factor form of an expression is writing the expression in lower power form such that the product of factors given the original expression

Consider the given expression  a^2-121.

We know the algebraic identity x^2-y^2=(x+y)(x-y)

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