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valentinak56 [21]
3 years ago
9

What is the difference between 15.0 and 20.0​

Mathematics
1 answer:
mariarad [96]3 years ago
5 0

Answer:

5

Step-by-step explanation:

Im not sure if you mean subtraction but if you find the difference im pretty sure you take 20.0 subtract 15.0 from it giving you the answer 5 or 5.0 im not that good with decimals sorry

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An 18% discount on a watch saved a shopper $72. Find the price of the watch before the discount
Mamont248 [21]
1% = $4

$4 × 100 = $400

$4 × 18 = $72

Your answer is $400
5 0
3 years ago
HELP PLS :C!!
nevsk [136]

Answer:

so originally there was 37 now there is 25 so if you trying to find out how many left you take 37-25=12 and 12 is how many left that zoo. hope this helps

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8 0
3 years ago
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What’s 20 divided by 20 im tired
MaRussiya [10]

Answer:

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7 0
3 years ago
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Paul went on a bike ride of 30 miles. He realized that if he had gone 8 mph faster, he would have arrived 12 hours sooner. How f
lara [203]

Answer: He actually rode 2 miles per hour on his trip

Step-by-step explanation: Maybe unconventional, but express the time it took, then figure the speed.

Time  = distance /speed  t will represent time, s is the speed:  t = 30/s Use the rime it would have taken at the higher speed to create an equation:

t-12 = 30/s+8   replace the y with the 30/s

30/s -12 = 30/s+8

(s)(30/s -12 ) = (s)(30/s+8 )  Cross multiply to cancel denominators  

(s-8)(30 -12s) = (s-8)(30s/s+8 ) ==> 30s +240 -12s² -96s =30s   Simplify:  

(-1)(-12s² -96s +240 ) =0 ==>  12s² +96s -240  divide all by 12

s² + 8s -20 = 0   Factor and solve for s

(s +10)(s -2) =0    s-2=0   S= 2  

Proof:

30/2 = 15 hours for original trip at 2mph,  

increase speed by 8mph   2 + 8 = 10mph

30 miles at 10mph takes 3 hours; that is 12 hours less than his actual trip.

(Brainilest, please :-)

4 0
3 years ago
Help me pleaseeeeee!!!!!!!
Crank
The answer would be C
3 0
3 years ago
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