3 years ago

Rewrite 2/20 : 1/40 as a unit rate

Mathematics

1 answer:

Usimov [2.4K]3 years ago

3 0

Answer:

yes

Step-by-step explanation:

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List the sample space (all the possible outcomes) for selecting a letter from the word mathematics.

vaieri [72.5K]

Answer:

Step-by-step explanation:

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3 years ago

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Two classrooms have a total of 45 people in them. The first class is a math class with 5 more students that the science class. H

Basile [38]

Answer:

20 students in science class, 25 in math

Step-by-step explanation:

so let 1 classroom= x

so the other classroom= x+5

if there is a total of 45 students

x+x+5=45

2x=45-5

2x=40

x=20

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Hunter and his children went into a movie theater and will buy bags of popcorn and drinks. Each bag of popcorn costs $5.50 and e

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Answer:

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Step-by-step explanation:

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Solving Rational Equations. LCD Method. Show work.<br><br><img src="https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B5x%7D%20%2B%5Cfrac%

Svet_ta [14]

using the LCD method.... well, there are a couple of ways, but let's simply add them up.

well, the denominators are 5x and 2x... so the only LCD will just be 10x, since it's divisible by both, so let's use that one.

$\bf \cfrac{2}{5x}+\cfrac{7}{2x}=1\implies \stackrel{\textit{LCD of 10x}}{\cfrac{(2)2~~+~~(5)7}{10x}}=1\implies \cfrac{4+35}{10x}=1\implies \cfrac{39}{10x}=1 \\\\\\ 39=10x\implies \cfrac{39}{10}=x\implies 3\frac{9}{10}=x$

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4 years ago

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A dice is rolled, then a coin is tossed. What is the probability of getting a 5 then tails?

inn [45]

Answer:

1/12

Step-by-step explanation:

P(5) = number of 5's on the die / total sides

P (5) = 1/6

P ( tails) = number of tails/ total

= 1/2

P (5, then tails)= P (5) *P ( tails)

= 1/6 * 1/2

= 1/12

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3 years ago