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3 years ago

Going as a ratio in simplest form: 500g to 2kg

Mathematics

1 answer:

attashe74 [19]3 years ago

6 0

The answer would be 250g to 1g

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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

7 0

3 years ago

A=1/2h(x+y) solve for h

Sloan [31]

Umm it think it would 1/2hx and 1/2hy
idk if im right tho

7 0

3 years ago

A) When 3 is subtracted from a number, the result is 8.

mestny [16]

Answer:

Step-by-step explanation:

check:

3+8=11

11-3=8

5 0

4 years ago

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HELLLP ASAP

Kisachek [45]

Answer:

1. 20 boxes cost $36. The unit rate is 1:1.8 and when you multiply 1.8 by 5 you get 9. If you also multiply 1.8 by 20 you get 36.

2.He completes 12.5 pages in 200 minutes.

200 divided by 32

multiply that answer by 2

which is 12.5.

hope it helps!

3 0

3 years ago

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On a road trip you drove 280 miles in 4 hours. a) What is your speed in miles per hour? b) Use your equation to determine how fa

frozen [14]

Answer:

a. 70 miles per hour

b. 840 miles

Step-by-step explanation:

280/4 = 70 miles per hour

70*12 = 840 miles

5 0

3 years ago

Read 2 more answers

Going as a ratio in simplest form: 500g to 2kg​

Going as a ratio in simplest form: 500g to 2kg