Answer:
x = 25
Step-by-step explanation:
2/5x - 1 = 9
Add 1 to both sides
2/5x = 10
Multiply by 5 on both sides
2x = 50
Divide by 2 on both sides
x = 25
Check the answer:
Plug in 25 for x
2/5(25) - 1 = 9
10 - 1 = 9
9 = 9
The answer is correct.
Answer:
the first one from the top
Answer:
They will make 13.80 dollars
Step-by-step explanation:
so they made 1.80 more
The shortest distance from A to B in the diagram is 17 m.
<h3>How to find the shortest distance?</h3>
The shortest distance from D to B can be found as follows:
using Pythagoras theorem,
c² = a² + b²
where
- c is the hypotenuse
- a and b are the other legs
Therefore,
DB² = 15² + 8²
DB² = 225 + 64
DB² = 289
DB = √289
DB = 17 m
learn more on distance here: brainly.com/question/20516334
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Using distance formula, it is 13 units