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Sav [38]
4 years ago
9

Rene is going to the lake to visit some friends. if the lake is 60 miles away, and rene is driving at 40 miles per hour the enti

re time, how long will it take her to get to the lake
Mathematics
1 answer:
GuDViN [60]4 years ago
8 0
Since she are going 40 mph, you can do the following:

60/40 = 3/2 = 1.5

She is using 1.5 hours to get to the lake.
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Rolf spent 15 hours last week practicing his saxophone. If 3/10 of the time was spent practicing warm up routines, how much time
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A chemist has a solution of 50% pure acid and another solution of 80% pure acid. How many gallons of each will make 600 gallons
bonufazy [111]
Let x=amount of 50% solution and y=amount of 80% solution.
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So 0.5x+0.8y=432; but y=600-x so 0.5x+0.8(600-x)=432, 0.5x+480-0.8x=432.
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5 0
3 years ago
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Can someone show me how to do this problem
olchik [2.2K]

√x+5 -1 = 0

Solve for X:

Add 1 to each side:

√x+5 = 1

Remove the radical by squaring both sides:

(√x+5)^2 = 1^2

Simplify:

x+5 = 1

Subtract 4 from each side:

x = -4


The answer is C.

8 0
3 years ago
Pls solve this question ASAP!!!
My name is Ann [436]

Step-by-step explanation:

\frac{1}{x}  -  \frac{1}{x - 2}  = 3

× All by x(x-2) both sides of equation

(x-2)-x = 3x(x-2)

x-2-x = 3x² - 6x

-2 = 3x² - 6x

0 = 3x² - 6x +2

3x² - 6x + 2 = 0

and use the formula

x =  \frac{ - b +  -  \sqrt{ {b}^{2} - 4ac  } }{2a}

8 0
3 years ago
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givi [52]

Answer:

3.8

Step-by-step explanation:

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3 years ago
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