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Llana [10]
3 years ago
7

Five years ago, Tim’s mom was three times Tim’s age today. Now their combined ages are 45. How old is Tim’s mom today?

Mathematics
2 answers:
Naya [18.7K]3 years ago
5 0
X   -    age of Tim 5 years ago 
x+5 -age of Tim now
(x+5)*3- Tim's mom 5 years ago
(x+5)*3+5 - Tim's mom now
x+5 +(x+5)*3+5 Tim and his mom together now
x+5 +(x+5)*3+5=45
x+5+3x+15+5=45
4x+25=45
4x=20
x=5

(x+5)*3+5 - Tim's mom now
(5+5)*3+5= 10*3+5=35   Tim's mom now

klio [65]3 years ago
4 0
His mother would be 30.

Hope this helps :)
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Answer:

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Step-by-step explanation:

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From the question, we are told that:

Milk from dairy I costs ​$2.40 per​ gallon, Milk from dairy II costs ​$0.80 per gallon.

Let's represent:

Number of gallons of Milk from dairy I = x

Number of gallons of Milk from dairy II = y

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$2.40 × x + $0.80 × y = 144

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x = 100 - y

2.40(100 - y) + 0.80y = 144

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Dairy I can supply at most 50 gallons averaging 3.9​% ​butterfat,

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90 gallons of milk = 2.9% butter fat

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Excess capacity of Diary I =

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Excess capacity of Diary II =

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Therefore, the excess capacity of dairy I is 10 ​gallons, and for dairy II it is 30 gallons.

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