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gregori [183]
3 years ago
12

Find the slope of a line perpendicular to a line through the given points. E(5, 7), F(3, 1)

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
8 0
The slope of a line going through points (5,7) and (3,1) is 6/2 so 3/1 = slope of 3
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Javier is cooling a liquid in a science lab. The liquid starts at 85 degrees, and he cools it 3.5 degrees every minute for 12 mi
bija089 [108]
85- (3.5*12)

* means times


I think this is correct.
7 0
3 years ago
Does anyone know the answer to this?
Alex

Answer:

10.5.

Step-by-step explanation:

By similar  triangles:

IJ / 21 = 8 /(8+8) = 1/2

IJ / 21 = 1/2

IJ = 1/2 * 21

= 10.5.

6 0
2 years ago
Morre Math HARDDDDDDDD
Dafna11 [192]

Answer:

the person above is right it's 4.5 units

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7 0
2 years ago
Enny’s mother is 5 years older than twice Jenny's age. The sum of their ages is 62 years. This is represented by the equation x
pickupchik [31]
X + 2x + 5 = 62 which can be turned into.
3x + 5 = 62 
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3x = 57
/3     /3 now we divide 3 from each side to get...
x = 19.
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3 0
3 years ago
Read 2 more answers
A store sold 2.5 times as many footballs as basketballs last year. What is the number of footballs sold for every basketball sol
bixtya [17]

Answer:

Step-by-step explanation:

You aren't able to figure out an exact number of either footballs or basketballs because you don't have enough information for that, but you do have enough to get an expression for one in terms of the other, which I imagine is the point here.  We know that for every 1 basketball sold, we sold 2.5 footballs, so the algebraic expression for that is

1 bball = 2.5 fballs

This gives us the number of bballs in terms of fballs but we want the number of fballs in terms of bballs, so solve that expression for fballs:

1 fball = 1/2.5 bballs

or, in words, for every single football sold, 2/5 of a basketball was sold.  Sounds silly, but I think your teacher is trying to get you to figure out how to express one thing in terms of another so you can use the expressions in solving story problems.

:/

6 0
3 years ago
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