MATHEMATICS MIDDLE SCHOOL

the pitch of a roof is the number of feet the roof rises for each 12 feet horizontally if a roof has a pitch of 8,what is the slepeexpressed as a positive number

Answers

Answer 1
Answer: So slope=rise/run
rise=8
run=12
8/12=4/6=2/3
the slope=2/3

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MIDDLE SCHOOL

Holly bought 23 tickets to the baseball game. She got a group rate that gave her $4 off of the regular ticket price for each ticket. The total cost was $184. What was the regular price for each ticket? Enter your answer in the box. $

Answers

Answer:

The regular price of the ticket was $12.

Step-by-step explanation:

Let us call the regular price of the tickets, and if she had bought tickets at this price, the total cost would have been

.

But Holly got $4 off the regular ticket price, that means one ticket cost her

and if she bought 23 tickets it cost her

and we are told this equals $184; therefore we have

now we solve this equation the following way:

Thus, the regular price was $12.

Answer:

I got it wrong answering $12, my school said it was $10.

I have no idea how though, they didn't show me their equation.

MIDDLE SCHOOL

X+2747.3739=4728
What is x

Answers

To isolate x, subtract 2747.3739 on both sides.

x + 2747.3739 - 2747.3739 = 4728 - 2747.3739

x = 4728 - 2747.3739

x = 1980.6261

X=4728-2747.3739
=1890.6261
HIGH SCHOOL

The data table represents the distance between a well-known lighthouse and a cruise ship over time. The cruise ship is travelling at uniform speed. Which equation represents the distance (y) from the lighthouse, based on the number of hours (x)? Number of Hours Distance from Lighthouse
(in oceanic miles)
2 53
4 95.5
6 138
8 180.5
10 223
12 265.5
14 308
16 350.5


y = 42.5x + 10.5
y = 10.5x + 32
y = 21.5x + 10.5
y = 12.25x + 28.5
y = 12.5x + 10.5

Answers

Find the velocity first, the "slope".

m=(y2-y1)/(x2-x1)

m=(95.5-53)/(4-2)

m=21.25  ?  Your equations are wrong, I'll double check with another set of points...

m=(350.5-308)/(16-14)

m=21.25  LOL, yep none of your lines has the correct slope.

Anyway...

y=21.25x+b, using any point we can solve for the y-intercept, or "b", (2, 53)

53=21.25(2)+b

53=42.5+b

10.5=b so the distance to the lighthouse as a function of time is:

y=21.25x+10.5

So essentially, you should fire your teacher or burn that book you are using :)

Answer:

y=21.5x+10.5

Step-by-step explanation:

MIDDLE SCHOOL

Change the signs as needed and solve. Type your answer in the box. Do not use any spaces. (+33) – (–46) =

Answers

-13 because if you 33 and subtract 46 you would have -13 sorry dont really know how to explain

Answer:

79

Explanation:

=(+33) -(-46)

=33 - (-46)

And since two negatives make a positive...

=33 +46

=79

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