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2 years ago

14

Two trains leave towns 1490 kilometers apart at the same time and travel toward each other. One train travels 20 km/h slower tha

n the other. If they meet in 5 hours, what is the rate of each train?

1 answer:

Fynjy0 [20]2 years ago

5 0

Answer:

rate 1. 50 2. 56

Step-by-step explanation:

if you graph them all together.

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A negative number plus a positive number is a negative number.

ipn [44]

Answer:

Sometimes

Step-by-step explanation:

Examples:

-5 + 10 = 5 FALSE

-10 + 5 = -5 TRUE

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3 years ago

Read 2 more answers

after two tests carol has a total score of 170. the score on her first test was 8 points higher than the score on her second tes

RoseWind [281]

X stands for the score of her first test
Y stands for the score of her second test

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2 years ago

Solve for x. 26x2–9x=0

Lilit [14]

Answer:

x=0;x= $\frac{9}{26}$

Step-by-step explanation:

assuming you meant 26x^2-9x=0:

$26x^{2} -9x=0\\x(26x-9)=0\\x=0;x=\frac{9}{26}$

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2 years ago

Decide if each number on the list is a perfect cube

katrin2010 [14]

Answer:

Only D,F, and G are perfect cubes.

Step-by-step explanation:

A) Technically not a perfect cube.

B) Not a perfect cube

C) Not a perfect cube

D) Yes. 3*3=9

E) Not a perfect cube

F) Yes. 8*8=64

G) Yes. 10*10=100

H) Not a perfect cube

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3 years ago

Equation A: y = 2x + 4

Ymorist [56]

2x+4=3x+1 they've substituted y =2x+4 into the second eq.

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3 years ago