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3 years ago

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Many fences in a rectangular area for his dog to play in the backyard. The area measures 35 yards by 45 yards .What is the lengt

h of fence that Manny uses
a) 1,575 yards
b) 160 yards
c) 80 yards
d) 35 yards

1 answer:

klasskru [66]3 years ago

6 0

Answer:

ITS 160

Step-by-step explanation:

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DanielleElmas [232]

Answer:

Part 1) The slope is $m=5$

Part 2) The slope is $m=-2$

Part 3) The slope is $m=2$

Step-by-step explanation:

Part 1) we know that

The equation of the line into slope intercept form is equal to

$y=mx+b$

where

m is the slope

b is the y-coordinate of the y-intercept

In this problem we have

$y=5x+1$

so

the slope is $m=5$

Part 2) we know that

The equation of the line in standard form is equal to

$Ax+By=C$

where

the slope is equal to $m=-\frac{A}{B}$

in this problem we have

$2x+y=6$

so

$A=2,B=1,C=6$

substitute

$m=-\frac{2}{1}$

$m=-2$

Part 3) we know that

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

we have

$A(2,3)\ B(5,9)$

Substitute the values

$m=\frac{9-3}{5-2}$

$m=\frac{6}{3}$

$m=2$

5 0

3 years ago

The answer I got for this problem was 10.8 (multiplied 18 and 60 then divided by 100) however, it stated that my answer is incor

Delicious77 [7]

9514 1404 393

Answer:

30 mL

Step-by-step explanation:

The meaning of 60% solution is ...

alcohol/(total volume) = 0.60

You are told the amount of alcohol is 18 mL, so you have ...

(18 mL)/(total volume) = 0.60

Multiplying by total volume gives ...

18 mL = 0.60 × (total volume)

Then dividing by 0.60, you have ...

(18 mL)/0.60 = total volume = 30 mL

_____

<em>Additional comment</em>

You need to apply what you know about the real world to consider whether your answer makes any sense. If alcohol is a little more than half of the volume, and the amount of alcohol is 18 mL, then the total volume cannot be less than 18 mL. In fact, you expect it to be not quite double 18 mL.

An answer of 10.8 mL makes no sense in this context. You cannot have less total solution than you have of something that makes up a part of the total solution.

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3 years ago

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Nuetrik [128]

Answer: From least to greatest: -2.4, -0.8, 0.2, 0.9, 1.6. Hope this helps you! :D

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