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otez555 [7]
3 years ago
5

Find the LCD of the following list of fractions. 2/21, 10/14, 17/22 LCD=

Mathematics
1 answer:
ollegr [7]3 years ago
7 0
The least common denominator is 462
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John was swimming for hour and a half hours at a speed of 2 miles per hour. How far did he swim?
alisha [4.7K]

Answer: 1 mile.

Explanation: 1/2 of an hour is 1 mile because the speed was 2 miles an hour so if you do half of that it is 1 mile.

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3 years ago
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Dylan lives about 27 miles from the mall. If he can drive at an average rate of 36 miles per hour through town, about how long d
Vlad [161]

Answer:

45 minutes

Step-by-step explanation:

distance / rate = time

27 miles / 36 miles/hr = .75  hr    ( 45 minutes )  

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2 years ago
-x^(2)-12=-87<br><br> Please explain your answer, and how I make the x positive
spayn [35]
Solve for x over the real numbers:
-x^2 - 12 = -87
Add 12 to both sides:
-x^2 = -75
Multiply both sides by -1:
x^2 = 75
Take the square root of both sides:
Answer:  x = 5 sqrt(3) or x = -5 sqrt(3)  both Answers are correct
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3 years ago
28+56t+28w to identify the equivalent expressions.<br> Choose 2 answers:
prohojiy [21]

Answer:

28(1 + 2t + w)

Step-by-step explanation:

This polynomial can be factored by factoring out 28.

28 + 56t + 28w = 28(1 + 2t + w)

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2 years ago
Help plz i need help PLZ I HAVE A MATH TEST :(((((((((((
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اختي هلق اذا نزلنا من الزاوية الثانية خط منحسن نلاقي مستطيل ونحيب مساحته ويلي هية ١٢ متر مربع

بعدين منطلع الضلعين الموجودين يلي لح يكونو نفس القيمة

يعني هوو كمان مستطيل ١٤×٤=٥٦

٥٦+١٢=٦٨

يعني الجواب ٦٨ متر مربع ان شاء الله يكون صح لاني حليته نظرياً

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3 years ago
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