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Snezhnost [94]
2 years ago
14

A bag contains yellow marbles and blue marbles, 23 in total. The number of yellow marbles is 7 less than 2 times the number of b

lue marbles. How many yellow marbles are there? Please help its due really soon!
Mathematics
1 answer:
steposvetlana [31]2 years ago
3 0

Answer:

b=10, a=13

Step-by-step explanation:

let s number of yellow = a

number of blue = b

we have

a+b =23

2b - a = 7

->a+b +2b -a = 23+7

-> 3b = 30

->b = 10

->a = 13

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Answer:

53.27

Step-by-step explanation:

I first subtracted $128 from $67.80

Which equaled $60.2 which I then divided by $1.13

Which than gave me my answer of 53.27

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2 years ago
If f(x)=3x+2 and g(x)=x-1/3 what is the value of f{g(7)}
Natali5045456 [20]

Answer:

f(g(7)) = 22

Step-by-step explanation:

First find the general form of the new equation, f(g(x)):

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3 years ago
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Step-by-step explanation:

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