Answer:
calories
Step-by-step explanation:
Given: The racer moves at
miles per hour expends energy at a rate of
calories per hour.
To find: Energy in calories, required to complete a marathon race
miles at this pace.
Solution: We have,
The racer moves at
miles per hour.
The racer expends energy at a rate of
calories per hour.
So, energy expended while moving
miles
calories.
Now, energy expended while moving
mile
calories.
So, energy expended while moving
miles
calories.
Hence,
calories of energy is required to complete a marathon race
miles at this pace.
Ralph chase invested $85000 at an interest of 10% and $70000 at an interest of 8%
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
An independent variable is a variable that does not depends on other variable while a dependent variable is a variable that depends on other variable.
Let a represent the amount invested at interest of 10% and b represent the amount invested at 8%, hence:
a + b = 155000 (1)
Also:
0.1a + 0.08b = 14100 (2)
From both equations:
a = 85000, b = 70000
Ralph chase invested $85000 at an interest of 10% and $70000 at an interest of 8%
Find out more on equation at: brainly.com/question/2972832
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Step-by-step explanation:
4+2+2+4+5 - 17
in nearest ten - 100 but i am not sure
Answer:
the required answer is 64
Step-by-step explanation:
b/4 =16
b = 16 × 4
= 64