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3 years ago

Write an expression that represents sarah's total pay last week. represent her hourly wage with

1 answer:

5 0

Whats her hourly wage and where is the rest of the question this is very confusing there are no details so i cannot help you sorry

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Two planes left simultaneously from the same airport and headed in the same direction towards another airport 3600 km away. The

ExtremeBDS [4]

Answer:

800 kph
600 kph

Step-by-step explanation:

Equation

Let s represent the speed of the faster plane. Then its travel time is ...

time = distance/speed = 3600/s

travel time for the slower plane is ...

time = distance/speed = 3600/(s -200)

The difference in these times is 1.5 hours, so we have ...

3600/(s -200) -3600/s = 1.5

Solution

Multiplying by (2/3)s(s -200), we get ...

2400(s) -2400(s -200) = s(s -200)

s^2 -200s -480000 = 0 . . . . . . . . . . rewrite in standard form

(s -800)(s +600) = 0 . . . . . . . . . . . . . factor

The positive value of s that makes a factor zero is s = 800.

Conclusion

The speed of the faster plane was 800 km/h; of the slower plane, 600 km/h.

_____

Check

The travel time for the faster plane was 3600/800 = 4.5 hours. For the slower plane, 3600/600 = 6 hours, a difference of 1.5 hours.

6 0

2 years ago

I need help. Please show work

telo118 [61]

◆ Area related to Circles ◆

Hey !!

Check the attachment.
Hope it helps you :)

7 0

2 years ago

HELP ME PLEEEEEEAAAASEEEE!

Archy [21]

Answer:

$2\frac{1}{2}\ liters$

Step-by-step explanation:

step 1

Convert mixed number to an improper fraction

$1\frac{1}{5}=\frac{1*5+1}{5}=\frac{6}{5}$

step 2

Using proportion

$\frac{3}{(6/5)}\frac{liters}{doors} =\frac{x}{1}\frac{liters}{door}\\ \\x=3/(6/5)\\ \\x=15/6\ liters$

step 3

Convert to mixed number

$\frac{15}{6}\ liters=\frac{12}{6}+\frac{3}{6}=2\frac{1}{2}\ liters$

8 0

2 years ago

Don't bought a tree ceiling that was 2 1/4 feet tall during the first year it grew 116 feet after two years it was 5 feet tall h

Llana [10]

The answer is 113.75 or 113 3/4

7 0

2 years ago

What's 6 15/40 Simplified ?

Phoenix [80]

it would be 6 3/8 because the common factor is 5

3 0

3 years ago

Read 2 more answers