MATHEMATICS MIDDLE SCHOOL

Truck driver drives for five hours at a constant speed of 55 mph. Write an equation that shows the total distance traveled (y) depending on the hours spent driving (x).

Answers

Answer 1

Answer:

Step-by-step explanation:

$y = 55x \n because \n distance \ = : \: speed \: * \: time$

plzzz.. .......

mark it as a brilliant answer

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Rewrite the equation by completing the square. 4 x^{2} +20 x +25 = 04x 2 +20x+25=0

Answers

The equation is in the form of $(x - h)^2 = k$ , where h = -5/2 and k = 25. To complete the square and rewrite the quadraticequation in the form of $(x - h)^2 = k$ , follow these steps.

1. Set the equation equal to zero: $4x^2 + 20x + 25 = 0$

2. Divide the entire equation by the coefficient of $x^2$ to make the leading coefficient 1: $x^2 + 5x + 25/4 = 0$

3. Take half of the coefficient of x (which is 5), square it (which is 25), and add it to both sides of the equation:

$x^2 + 5x + 25/4 + 25 = 0 + 25\nx^2 + 5x + 25/4 + 25 = 25$

4. Simplify the left-hand side by factoring the perfect square trinomial:

$(x + 5/2)^2 = 25$

Now, the equation is in the form of $(x - h)^2 = k$ , where h = -5/2 and k = 25.

To know more about equation:

brainly.com/question/29207491

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the answer is x=-2.5 when you complete the square

What's 2.85 tons rounded to the nearest hundredth

Answers

I think its 2.90 because the hundreth is the second to the right and its a five so it goes up to 90

2.85 tons. The hundredth spot is the second one to the right of the decimal (the 5) and since that's where you're rounding to it stays 2.85 tons :)

Can you help with these two questions I'm having hard times in math

Answers

Sure, here are what I got for those 2 questions:

16.
No, the Rockets' ratio was 1:3 whereas the Turbo's was 4:9.

17.
They make 33.3333% of free throws, so if they attempted 12, they would make 4 because 1/3 x 12 = 4.

I need Help!!A: 65
38
35
15
B: 38
35
12
15
C: 38
35
12
15

Answers

Answer:

Step-by-step explanation:

I'm pretty sure the answer for your question is B,

15 But I'm not sure.

The graph shows Susan’s distance from her office, in yards, as she runs errands, over time, in minutes.How much time did Susan spend moving toward her office?

________ min

Answers

The question is asking how much time Susan spent moving toward her office. On the graph, the y-axis represents the distance Susan is from her office, so the amount of time she is moving toward her office is the amount of time the graph is going down.

As you can see, the graph is going down from the 10 to 16 minute marks and the 22 to 26 minute marks. In total, this is 20 minutes in which the graph is going down.

Therefore, Susan spends 20 minutes moving toward her office.

120 is what percent of 360 explain plz

Answers

120 = x percent of 360

120 = x * 360

120/360 = x

x = .33 repeating

x = 33.33% (repeating)

120 = 360x
x=120/360
x=⅓
convert to decimal
x=.33333333....
convert to percent
x=33.3333333...%

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Math prob in textbook: the price of a liter of coke increased from 1.09 to 1.29. What was the percent of increase? I know how to do it, but I don't understand the answer. I got .18348624... On and on. The book said approximately 18.3% how did they get that? Where did the decimal come from? How would I round that non ending decimal to a percent money-wise?