Which SI unit is appropriate for measuring the height of a person? A. feet B. meters C. grams D. kilometers
1 answer:
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Answer:
Part 1) The linear equation is
Part 2) if he has 90 protein bars left, then 52.5 days have passed
Step-by-step explanation:
we know that
The linear equation in slope intercept form is equal to
where
y is the number of protein bars left
x is the number of days
m is the slope or unit rate
b is the y-intercept or initial value
In this problem we have
The slope is equal to
----> is negative because is a decreasing function
substitute
---> linear equation that represent this situation
If he has 90 protein bars left
so
For y=90
substitute in the linear equation and solve for x
therefore
if he has 90 protein bars left, then 52.5 days have passed
10 (x + 2) = 5 (x + 8)
First, we can start off by dividing each side by 5. Each side usually meaning, the whole number in front of the parentheses, in simpler words. 10 ÷ 5 = 2 and 5 ÷ 5 = 1, which can be represented as a variable (x).
Second, we can now expand our problem. Basically, remove parentheses. We're focusing on the left side of the problem right now, so to expand 2(x + 2), we could combine 2 and the variable to create 2x, and multiply 2 times 2, which equals 4.
Third, our next step is to subtract 4 from each side. Now all we are trying to do is get the variable to equal something by itself.
Fourth, let's simplify the right side of the problem now. x + 8 - 4, we would start of by subtracting 8 - 4, which equals 4 and leave the variable alone.
Fifth, subtract the variable (x) from each side. You will get the problem to look like: 2x - x = 4. We can now simplify 2x - x, which equals x.
Answer:
First, we can start off by dividing each side by 5. Each side usually meaning, the whole number in front of the parentheses, in simpler words. 10 ÷ 5 = 2 and 5 ÷ 5 = 1, which can be represented as a variable (x).
Second, we can now expand our problem. Basically, remove parentheses. We're focusing on the left side of the problem right now, so to expand 2(x + 2), we could combine 2 and the variable to create 2x, and multiply 2 times 2, which equals 4.
Third, our next step is to subtract 4 from each side. Now all we are trying to do is get the variable to equal something by itself.
Fourth, let's simplify the right side of the problem now. x + 8 - 4, we would start of by subtracting 8 - 4, which equals 4 and leave the variable alone.
Fifth, subtract the variable (x) from each side. You will get the problem to look like: 2x - x = 4. We can now simplify 2x - x, which equals x.
Answer: