Eva sees a dolphin 3.2 meters below sea level and a bird 47/10 meters above sea level. Which of the following expressions repres
ents the vertical distance between the dolphin and the bird?
2 answers:
Answer:
Vertical distance between dolphin and the bird is 7.9 meters.
Step-by-step explanation:
Eva sees a Dolphin at the distance 3.2 meters below the sea level.
At the same time she sees a bird meters above the sea level.
Therefore, vertical distance between the dolphin and the bird = Distance of dolphin below the sea level + Distance of the bird above the sea level
= 3.2 +
= 3.2 + 4.7
= 7.9 meters
Answer is 7.9 meters.
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This is a problem of system of linear equations in two variables. This concept of mathematics is very useful in real-life problems. You can solve a system by finding the solution. A solution of a system are the values of the variables that satisfies each equation in the system. So by knowing these concepts we can get a system of equation by analyzing each statement step by step, that is:
1. Alice has a total of 12 dimes and nickels.
Let the variables:
1st. Equation:
<span>2. She has 2 more nickels than dimes
2nd Equation:
Therefore our system of linear equations is:
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Conclusion:
<span>Alice has 5 dimes and 7 nickels. </span>
1. Alice has a total of 12 dimes and nickels.
Let the variables:
1st. Equation:
<span>2. She has 2 more nickels than dimes
2nd Equation:
Therefore our system of linear equations is:
</span>
Conclusion:
<span>Alice has 5 dimes and 7 nickels. </span>