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IRISSAK [1]
3 years ago
10

Answer these 2 questions please

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
7 0
\cfrac{5.0*10^8}{2.0*10^4} =2.5*10^{8-4}=2.5*10^4 \\  \\  \\  \\ (2.35*10^5)(5.92*10^7)=13.912*10^{12}=1.3912*10^{13}
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How do you convert fractions to decimals and percents
Levart [38]
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a box holds red pens and blue pens the ratio of red pens to blue pens is 1 to 4 The box holds 12 more blue pens than red pens wh
Genrish500 [490]

Answer:

20 pens

Step-by-step explanation:

if there is 1 red pen for every 4 blue pens

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3 years ago
Why do you divide by 60 after calculating the area of the trapezoid (to calculate the distance)? I got 900 but I don’t know why
Free_Kalibri [48]

Answer:

Step-by-step explanation:

What you are trying to do is a nice way to solve this problem. Without knowing any physics, you are using what math you know to get the answer. You are actually very close to being correct, and you are right. You do have to divide by 60.

Here's why and it is the one bit of physics you have to know.

The speed is km/hour. That word hour is the culprit. Your time is in minutes and you have to get it into hours. In physics, the units have to be consistent.

So ...

b1 = 19 minutes which is 19 min [1 hour / 60 minutes] = 19/60 = 0.31667 hour

b2 = 26 minutes which is 26 min [ 1 hour/60 minutes] =  26/60 = 0.4333 hour

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3 years ago
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aleksandr82 [10.1K]
$3,600 is 0.8% (or 80%) of $4,500.
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2 years ago
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