U just have to find original amount (100%) and that is the amount he made last week.
Which of these numbers equals 30.75 -3? A. -92.25 B. -10.25 C. 10.25 D. 92.25
2 answers:
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4,750 mm
Equation with an exponent 4.75 x = 4,750
First, it's important to know that there are 1,000 millimeters in 1 meter. Second, it's important to know that is the same as 1,000. In order to find out how many millimeters are in 4.75 meters, one must multiply 4.75 by 1,000.
Meters
A meter is a unit of metric measurement. Track and Field events use the metric system because it is a universal unit of measurement. Inches and feet are not units used all over the world. The Olympic Games use the metric system so this is the system that is universally adopted throughout the world for many sporting events, including track and field. Sports that are more commonly attributed to the USA and not an Olympic event often uses the US system. An example is football. The field is measured in yards instead of meters.
Millimeters
The prefix milli- means 1,000. Often it is used to denote a thousandth unit of measurement in the metric system. This is a useful item to know because it can be applied to many different math terms such as millimeters or milliliters.
Exponents
An exponent is the amount of times a number is multiplied to itself. For example is the same as 4 x 4 = 16. This is a faster way to write repeated multiplication.
Remember multiplication is a faster way to write repeated addition! Exponents are a faster way to write repeated multiplication.
<h3>Answer Details</h3>Subject: Math
Level: Middle School
Topic: Exponents
<h3>Keywords</h3>exponents, metric system, meters, millimeters
<h3>Learn More</h3>More on Metric Systems: brainly.com/question/3956263
Metric Conversions: brainly.com/question/12443484
<h2>The car is about 6.6 years old.</h2>
Step-by-step explanation:
Given : An equation for the depreciation of a car is given by , where y = current value of the car, A = original cost, r = rate of depreciation, and t = time, in years. The value of a car is half what it originally cost. The rate of depreciation is 10%.
To find : Approximately how old is the car?
Solution :
The value of a car is half what it originally cost i.e.
The rate of depreciation is 10% i.e. r=10%=0.1
Substitute in the equation,
Taking log both side,
Therefore, the car is about 6.6 years old.