3 years ago

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Mathematics

1 answer:

Phantasy [73]3 years ago

5 0

I believe the first answer shown in the picture because y= mx + b so it's y=3x+30

hope this helps!

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The length of a rectangle is twice its width. if the area of the rectangle is 50 yds2 , find its perimeter

Law Incorporation [45]

Hello :
x : length y :<span> width
</span>xy = 50 ...(1)
x = 2y ...(2)
dubsct in (1) :
(2y)(y) = 50
y² = 25
y = 5
x = 10

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3 years ago

Simplify all the ratios. Show your work!

Dmitrij [34]

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3 years ago

What's -128+138r=718 equal

german

Answer:

r = 6 3/23

Step-by-step explanation:

-128+138r=718

add 128 to each side

-128+128+138r=718+128

138r = 846

divide each side by 138

138r/138 = 846/138

r = 846/138

divide top and bottom by 2

r = 423/69

divide top and bottom by 3

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change this to a mixed number

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4 years ago

The sum of 4 consecutive multiples of 6 is 540. What is the greatest of these numbers?

pychu [463]

Answer:

144

Step-by-step explanation:

First: 6x

Second: 6x+6

Third: 6x+12

Fourth: 6x+18

- Since they're multiples of 6

$6x+6x+6+6x+12+6x+18=540$

$24x+36=540\\$

Subract 36 from each side give us...

$24x=504\\x=21$

$21(6)+18=144$

Hope this helped! Please mark brainliest :)

4 0

3 years ago

Can someone help please. Due today.

Bingel [31]

just search it up on the internet

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3 years ago