Hence first mechanic worked for 15 hours and second mechanic worked for 5 hours.
<h3>What is ratio and proportion?</h3>
When comparing two quantities of the same kind, ratio is utilized.
For two numbers, a and b, the ratio formula is written as a: b or a/b.
Two or more ratios are said to be in proportion if they are all equal.
Fractions are the foundation of the concepts of ratio and proportion.
Let x is the number of hours the first mechanic worked and y is the number of hours the second mechanic worked.
∵x+y = 20
x = 20 - y
115x+100y = 2225
115(20-y) + 100y = 2225
2300 - 115y +100y = 2225
15y = 75
y = 5 hours
∴ x = 20-5
x = 15 hours
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Answer:
no offence
Step-by-step explanation:
but that camra qulity doe
Step 2
because she should substitute the negative sign to 6
A. The reduction in Angela’s tips are cause by low restaurant sales. Even tho shes still getting her 20% it’s less money due to the fact they’re less customers
Answer:
The answer to your question is ∠3 = 63°
Step-by-step explanation:
Data
∠2 = 117°
∠3 = x
Process
1.- Angles 2 and 3 are supplementary which means that their addition gives 180°.
So,
∠2 + ∠3 = 180
Substitution
117° + ∠3 = 180°
Solve for ∠3
∠3 = 180° - 117°
Simplification and result
∠3 = 63°