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dimulka [17.4K]
3 years ago
5

How do I solve this equation and check all the solutions?

Mathematics
2 answers:
mash [69]3 years ago
6 0

Answer:

10

Step-by-step explanation:

x-√2x-5=5

-√2x-5=5-x

√2x-5=-5+x

2x-5=x²-10x+25

2x-5-x²+10x-25=0

12x-20-x²=0

-x²+12x-20=0

x²-12x+20=0

x=10

Note: there is a another answer x=2 but the equality will be false if x=2 so the answer is 10

Eddi Din [679]3 years ago
5 0
The answer I got was: x = 0,2

Hope this helps! ;)
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Sari has a bag containing 6 half-dollar and 3 dollar coins.what is the total mass of the coins in saris bag?
Nataly_w [17]
6 half dollar coins would= $3.00 so you would add $3.00+$3.00=$6.00
5 0
3 years ago
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A triangle has angles that measure 46 and 84<br><br> what is the third angle?
pentagon [3]
The measure of the third angle is 50 because a triangle has a sum of 180 degrees by angle.

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3 years ago
If you add the digits in a two-digit number and multiply the sum by 7, you get the original number. If you reverse the digits in
erik [133]
I got 42.......................

8 0
3 years ago
Can you please help me ​
mylen [45]

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3

Step-by-step explanation:

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4 0
3 years ago
IMPOSSIBLE PLEASE HELP! ALSO MAKE SURE TO WRITE A LET STATEMENT
madam [21]
Q1 :
x + (x+25) = 131
2x + 25 = 131
2x = 131-25
2x = 106
x = 53
53+25 = 78
Therefore, 53+78=131

Q2 :
x + (x+14) = 58
2x + 14 = 58
2x = 58-14
2x = 44
x = 22
22+14 = 36
Therefore, 22+36=58

Q3 :
let ‘b’ be basketball
b + (3+b) = 27
2b + 3 = 27
2b = 27-3
2b = 24
b = 12
12 + 3 = 15
Therefore, 12 + 15 = 27
12 basketballs and 15 footballs were sold on Saturday

Q4 :
let ‘s’ be soup
s + 2s = 738
3s = 738
s = 246
246 x 2 = 492
Therefore, the hamburger has 492 calories while the soup as 246 calories

hope it helps somehow!

4 0
3 years ago
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