22.06.2020

3a + 5b = 26 ; a + 5b = 22

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09.07.2023, solved by verified expert
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3a + 5b = 26 ; a + 5b = 22, №18010139, 22.06.2020 08:24

Step-by-step explanation:

3a + 5b = 26 ; a + 5b = 22, №18010139, 22.06.2020 08:24

Isolate a from 3a + 5b = 26,

3a + 5b = 26 ; a + 5b = 22, №18010139, 22.06.2020 08:24

3a + 5b = 26 ; a + 5b = 22, №18010139, 22.06.2020 08:24

3a + 5b = 26 ; a + 5b = 22, №18010139, 22.06.2020 08:24

Now, Isolate b for  

3a + 5b = 26 ; a + 5b = 22, №18010139, 22.06.2020 08:24

Now, Substitute b=4

3a + 5b = 26 ; a + 5b = 22, №18010139, 22.06.2020 08:24

3a + 5b = 26 ; a + 5b = 22, №18010139, 22.06.2020 08:24

3a + 5b = 26 ; a + 5b = 22, №18010139, 22.06.2020 08:24

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Mathematics
Step-by-step answer
P Answered by Specialist

\boxed{a=2,\:b=4}

Step-by-step explanation:

\begin{bmatrix}3a+5b=26\\ a+5b=22\end{bmatrix}

Isolate a from 3a + 5b = 26,

a=\cfrac{26-5b}{3}

\begin{bmatrix}\cfrac{26-5b}{3}+5b=22\end{bmatrix}

\begin{bmatrix}\cfrac{26+10b}{3}=22\end{bmatrix}

Now, Isolate b for  

\cfrac{26+10b}{3}=22\:\:\boxed{b=4}

Now, Substitute b=4

a=\cfrac{26-5\times \:4}{3}

\cfrac{26-5\times \:4}{3}\:\:\boxed{a=2}

\boxed{a=2,\:b=4}

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Mathematics
Step-by-step answer
P Answered by PhD

The answer is in the image 

The answer is in the image 
Mathematics
Step-by-step answer
P Answered by PhD
The answer is in the image 

The answer is in the image 

Mathematics
Step-by-step answer
P Answered by PhD

The answer is in the image 

The answer is in the image 
Mathematics
Step-by-step answer
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The solution is given in the image below

The solution is given in the image below
Mathematics
Step-by-step answer
P Answered by PhD

The wood before starting =12 feet

Left wood=6 feet

Wood used till now=12-6=6 feet

Picture frame built till now= 6/(3/4)

=8 pieces

Therefore, till now 8 pieces have been made.

Mathematics
Step-by-step answer
P Answered by PhD

tip=18% of 75.45

     =18/100 * 75.45 = $13.581

Tip = $13.581

Mathematics
Step-by-step answer
P Answered by PhD

Let the father's age be x and son's be y

10 years before-

Father age=x-10

sons age=y-10

Given,

x-10=10(y-10)

x-10=10y-100

Given present age of father=40

therefore,

x=40

40-10=10y-100

10y-100=30

10y=130

y=130/10

y=13

Therefore present age of son=13years

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