3 years ago

Find the distance between a and b

Mathematics

1 answer:

nataly862011 [7]3 years ago

8 0

THE DISTANCE IS 7 UNITS

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brazil exports the most coffee in the world it cost approximately $2.55 to produce a pound of coffee.Also the us charges 20% tar

exis [7]

Answer:

I believe it is 3.1875.

Step-by-step explanation:

25% of 2.55 is 0.6375.

2.55 + 0.6375 = 3.1875.

3 0

3 years ago

A plane left 30 minutes late than its schedule time and in order to reach the destination 1500 km away in time it had to increas

schepotkina [342]

Let x= the usual speed
1500/x would equal how long it usually took the plane to read the destination
1500/(x+100) would equal how long it would take the plane now
So $\frac{1500}{x} - \frac{1500}{x+100} = \frac{1}{2}$ because it would lose 30 minutes already
Simplify:
$\frac{1500(x+100)-1500x}{x(x+100)} = \frac{1}{2}$
$\frac{1500x+150000-1500x}{x^2+100x} = \frac{1}{2}$
$\frac{150000}{x^2+100x} = \frac{1}{2}$
$\frac{300000}{x^2+100x} =1$
$300000= x^{2} +100x

x^2+100x-300000=0

x^2+600x-500x-300000=0

x(x+600)-500(x+600)

(x-500)(x+600)

x=500, x \neq -600
$

The usual speed was 500 hm/hr

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3 years ago

Marco picked 8

Rzqust [24]

It 4 the answer is 4 alpeass

8 0

4 years ago

Convert 490 square meters to square dekameters<br> please show work, if you can't thats okay

Savatey [412]

The answer will be 4.9. =)

Since we know 1 metre is 0.01 dekametres, we can use this to answer the question!

We simply multiply 490 by 0.01. =)

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3 years ago