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Serga [27]
3 years ago
15

Iel travels 400 miles in 8 hours. What is her rate of change or speed? A) 40 miles per hour B) 50 miles per hour C) 55 miles per

hour D) 60 miles per hour
Mathematics
1 answer:
kupik [55]3 years ago
3 0
The speed is 400/8=50mph
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3x+y=0 and x+2y=7

i)

a= intercept on x axis

b= intercept on y axis

from the question

a=2b

x/2b+ y/b=1

x+2y=2b

since it passes through the point (3,2)

then 3+4=2b

7/2=b

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ii) given b =3a

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3x+y=3a

it passes through ( -1,3) then

-3+3=3a

a=0

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1 year ago
2y)(2y + 8) = ? A. 4xy – 16x – 4y2 – 16y B. 4xy + 16x – 4y2 – 16y C. 4xy – 4y2 D. 4xy + 16x + 4y2 + 16y 8…
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4y^2 + 16y
You distribute the 2y into the 2y+8
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4 years ago
A group of friends were working on a student film that had a budget of $500. They used $25 of their budget on props. What percen
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1/8

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1. scalene
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Read 2 more answers
How can you use a picture to find 3 times 2.7
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Hope this picture helps!

<span>The 2.7 has been broken into 2 and 0.7, and then both of these parts have been multiplied by 3, giving you the two answers of 6 and 2.1 shown. Adding these two together gives you the answer of 8.1. </span>

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