Donna guessed there were 400 jellybeans in a jar. There were really 480 jellybeans. What is her prevent of error

Mathematics

1 answer:

maks197457 [2]3 years ago

5 0

Answer:

Step-by-step explanation:

Donna guessed 400 but there were 480 so she was off by 80

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sukhopar [10]

Answer:None of the above it would have to be that's what he pays in 9 months

Step-by-step explanation:

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4 years ago

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If a man spend 1/5 on food a<br>nd 1/3 on car and his left with #286.how much is his income

mr_godi [17]

Answer:

Step-by-step explanation:

Let income=X

Given he spend 1/5of his income on food.=X/5

He spend 1/3 of his income on car=X/3

Left with=286

x-(X/5+X/3)=286

x-8x/15=286

7x/15=286

X=286×15/7

X=612.85

His income is 612.85.

7 0

3 years ago

Two cargo ships are sailing a direct course into harbor. Ship A is 22 miles from harbor. Ship Bis sailing into harbor on a cours

s344n2d4d5 [400]

Answer:

The distance of ship B from the Harbor is 32.26 miles

Step-by-step explanation:

Hello, great question. These types are questions are the beginning steps for learning more advanced Equations.

I have added a visual aid of the problem. As we can see the courses of both ship to the harbor forms a triangle with ship B being the hypotenuse. Since we are given the distance of the course for ship A and the angle between both ships, we can use this information with the <u>COSINE operator</u> to solve for the length of the course of ship B.

$cos(x) = \frac{adjacent}{hypotenuse}$