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Katen [24]
3 years ago
7

Please help me with these square root problems, Part 1. Please show and check the work.

Mathematics
2 answers:
garri49 [273]3 years ago
7 0

Answer:

x = 11

Step-by-step explanation:

sqrt (2x - 5) = sqrt (x + 6)

Square both sides

2x - 5 = x + 6

x = 11

Verify:

sqrt[2(11) - 5] = sqrt(11 + 6)

sqrt(17) = sqrt(17)

Arisa [49]3 years ago
4 0

Answer:

x = 11

Step-by-step explanation:

√2x-5 - √x+6 = 0

√2x-5 = √x+6

(√2x-5)² = (√x+6)²

2x - 5 = x + 6

2x - x = 6 + 5

x = 11

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3 years ago
Jackie wants to burn 2000 calories in one week she can burn 250 calories per hour doing aerobics. How many hours should Jackie d
Crank

Answer:

8 hours

Step-by-step explanation:

If Jackie wants to burn 2000 calories in one week but only burns 250 calories per hour

then, to solve how many hours you have to divide

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Step-by-step explanation:

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3 years ago
Tina is saving to buy a notebook computer. She has two options. The first option is to put S200 away initially and save $10 ever
BigorU [14]
The equation for the first option is Y=10x + 200
The equation for the second option is Y=30x + 100

X = one month
To find when they would be the same about you have to set the equations equal to each other

10x + 200 = 30x + 100
-10x -100 -10x -100

100= 20x

5 = x

After five months she would save the same amount. To find how much is saved you have to plug in 5 for x in one of the equations. You can always double-check 5 by plugging it in both equations and making sure you get the same answer

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Answer:

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Step-by-step explanation:

-3x+2 and[(-)(x^2+5x)

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