2 years ago

A D

1 answer:

4 0

Answer: 4.1

Step-by-step explanation:

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ser-zykov [4K]

Answer:

don't worry I'm on my way step bro ! where'd you get stuck ?! (;

6 0

2 years ago

snow_lady [41]

Answer:

8/9, 4/5, 2/5, 1/3, 3/10

Step-by-step explanation:

2/5 = 0.4 8/9 = 0.888 4/5 = 0.8 1/3 = 0.333 3/10 = 0.3

8 0

2 years ago

Makovka662 [10]

Answer:

Train A - 50 miles per hour

train B - 30 miles per hour

Step-by-step explanation:

Let x mph be the speed of the train B, then the speed of the train A is (x+20) mph.

In 3 hours,

In total, they covered the distance of 240 miles, so

$3(x+20)+3x=240\ \ \ \text{[Divide by 3]}\\ \\x+20+x=80\\ \\2x=80-20\\ \\2x=60\\ \\x=30\ mph\\ \\x+20=30+20=50\ mph$

8 0

3 years ago

densk [106]

I think the answer would be 7/50

8 0

2 years ago

Ivan

Answer:

The answer is 9.

Step-by-step explanation:

8 0

2 years ago