Every Term is A. A constant B. An Expression C. A Variable

1 answer:

8 0

B. An expression. A constant is a number within an expression with a set numerical value that cannot be changed. A variable is the letter representing an unknown number (such as x) and can be changed at any time. An expression is what contains the terms and operations, and it ALWAYS contains at least one term. :)

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Darius reads 2/10 of his book in 3 days. He says that if he reads the rest of the book at the same speed, it should take him 15

-BARSIC- [3]

Answer:

Darius is correct

Step-by-step explanation:

Darius reads $\frac{2}{10}$ of his book in 3 days

In 1 day, he reads $\frac{2}{10} \div 3$ of the book.

Therefore in 15 days, He reads

$(\frac{2}{10} \div 3) X 15=\frac{2X15}{10X3}=\frac{30}{30}=1$

which is the whole of the book.

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4 years ago

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A zoo has 15 emperor penguins The emperor penguins make up 30% of all the penguins at the zoo. How many penguins live at the zoo

r-ruslan [8.4K]

Let x + 15 = total penguins

15/ (x +15) = .30

15 = .30x + 4.5

.30x = 10.5

x = 35

Total penguins = 15 + 35 = 50

Double Check

15 / 50 * 100 = 30% Correct!!!

3 0

3 years ago

Two xminus 3 divided by 2 minus x equal two x minus 4 divided by 1 minus x , solve for x

vredina [299]

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3 years ago

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What is the ratio to convert 880 yards to miles

Sholpan [36]

1 yard is 0.000568182 miles.

So 880 yards is .5 miles

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3 years ago

What type of counting problem is this?

nexus9112 [7]

Answer:

D is Permutation with repetition right