: asked on dontworry48
22.06.2020
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## Step-by-step answer

09.07.2023, solved by verified expert
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Step-by-step explanation:

Isolate a from 3a + 5b = 26,

Now, Isolate b for

Now, Substitute b=4

~

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Mathematics
Step-by-step answer
P Answered by Specialist

Step-by-step explanation:

Isolate a from 3a + 5b = 26,

Now, Isolate b for

Now, Substitute b=4

~

Mathematics
Step-by-step answer
P Answered by PhD

The answer is in the image

Mathematics
Step-by-step answer
P Answered by PhD

The answer is in the image

Mathematics
Step-by-step answer
P Answered by PhD

The answer is in the image

Mathematics
Step-by-step answer
P Answered by PhD

The answer is in the image

Mathematics
Step-by-step answer
P Answered by PhD

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

Mathematics
Step-by-step answer
P Answered by PhD

The answer is in the image

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