MATHEMATICS MIDDLE SCHOOL

Mr. Cohen drives 84 2/10 miles on Tuesday, 84 6/10 on Wednesday, and 85 miles on Thursday. What is the rule of the distance he drives each day? Show how you can check your answer.

Answers

Answer 1

Answer: He drives an extra 4/10 miles you can check your work by adding 4

Answer 2

Answer:

Answer:

He drives an extra 4/10 of a mile every day.

Step-by-step explanation:

Looking at our pattern, we see that to get from 84 2/10 to 84 6/10, we would add 4/10.

Similarly, to get from 84 6/10 to 85, we would add 4/10.

This means we add 4/10 of a mile every day.

To check, we can subtract:

85-84 6/10 = 4/10

84 6/10-84 2/10 = 4/10

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A rectangle has a perimeter of 80 inches. Write an equation to represent the area A in terms of width w. Do I use the perimeter?

Answers

Answer:

$A = 40w-w^2$

Step-by-step explanation:

We are given the following in the question:

Perimeter of rectangle = 80 inches.

Let l be the length and w be the width of rectangle.

Perimeter of rectangle =

$P= 2(l+w)$

Putting values, we get,

$80 = 2(l+w)\n40 = l+w\n\Rightarrow l = 40 - w$

Now, we have to find the area of the rectangle in terms of w.

Area of rectangle =

$A = l* w$

Putting values, we get

$A = (40-w)w\nA = 40w-w^2$

is the required expression of area of rectangle in terms of w.

Yes, the perimeter is used to calculate the length of the rectangle in the term of w.

What is the answer to the equation? Explain how you would solve this problem. 2x - 8 = 50

Answers

The answer is 29. The answer is 29 because you add the 8 to 50. You get 58. Then divide 58 by 2 and you get 29.

Answer:

x=29

Step-by-step explanation:

2x - 8 = 50

Here we need the value of x. so first we will remove -8 by adding 8 on both side.

=>2x =50+8 [add 8 on both side]

=>2x=58

then we get 2x . so, we will divide both side by 2.

=>x=58/2

=>x=29

Help please, explantion please. also how has your day been?

Answers

Answer:

The answers are A, E, F or 1, 5, 6

Sorry I was a little late answering the question

Step-by-step explanation:

Hope this helps!!! Have a great day!!! : )

I think it’s the 2nd and 4th one.

Solve the problem if f(x)=int(-4x), find f(-1.8)

Answers

INT function returns the integer portion of a number .
f(-1.8) = int(7.2) = 7

Final answer:

The function f(x) = int(-4x) requires us to find the integer part of the result when x = -1.8. After substituting and simplifying, we find that f(-1.8) = 7.

Explanation:

The problem given is f(x)=int(-4x), and we are asked to find the value of f(-1.8). The int function refers to integer part of a number, which is the number without its decimal component. It's important to note that for negative numbers, the integer part is the number rounded down.

To solve, we first substitute x = -1.8 into the function:

f(-1.8) = int(-4*-1.8) = int(7.2).

The integer part of 7.2 is 7, so f(-1.8)=7.