Write the subtraction fact 10-3 two ways
2 answers:
The result of the subtraction amounts to
.
Further Explanation:
Given:
The expression stands as .
Calculation:
Imagine John possessing chocolates. After consuming
chocolates, he wishes to find out how many he has left.
The remaining chocolates can be figured as,
John has chocolates remaining.
Another method to perform subtraction is by using a number line.
A number line is a straight line that encompasses all real numbers.
The process of subtracting two numbers involves the following steps.
Step 1
Advance along the line the amount corresponding to the first number.
Step 2
Recede along the line the amount corresponding to the second number.
In this instance, we need to subtract 3 from 10.
The steps are as follows,
1. Move 10 steps forward on the number line.
2. Move 3 steps backward on the number line.
The answer will be the final position, which is 7.
Please see the image attached to the question.
Learn more:
1. Discover more about multiplying two numbers
2. Explore more about subtracting two numbers
3. Understand more about division
Answer details:
Grade: junior School
Subject: Mathematics
Chapter: Subtraction
Keywords: subtraction, two approaches to subtraction, subtraction facts, expression, number line, jump, ten, three, seven, real numbers.
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Answer:
The variable x lies within the interval of all positive real numbers less than 5 cm.
Detailed solution:
Problem statement:
Determine the volume of the open-topped box as a function of the side length x (in centimeters) of the square cutouts.
Refer to the provided diagram for clarity.
Define:
x → length in centimeters of each square cutout side
The volume of the box with open top can be written as:
Given this, we have:
By substitution:
Determine the domain of x:
Because:
Therefore:
Domain is the interval (0,5)
That means all real numbers strictly greater than zero and less than 5 cm are valid for x.
Hence, the volume V as a function of x is:
