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just olya [345]
3 years ago
10

The expression n+n-0.18n is equivalent to ?

Mathematics
2 answers:
sweet-ann [11.9K]3 years ago
6 0

Answer:

1.82n

Step-by-step explanation:

We combine like terms to simplify this.

Any variable with no other coefficient can be written with a coefficient of 1.  This is because everything can be multiplied by 1 without changing it.  This means we have

1n + 1n - 0.18n

Combining like terms, we have

2n - 0.18n = 1.82n

ANTONII [103]3 years ago
3 0

Answer:

1.82n

Step-by-step explanation:

n+n-0.18n

Combine like terms

2n - .18n

1.82n

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Describe the expression (4x÷2)-9y
sertanlavr [38]
<span>(4x ÷ 2) - 9y is difference of two terms.</span>
4 0
3 years ago
Susan threw a softball 42 years on her first try and 51 1/3 yard on her second try. How much farther did she throw the softball
Andru [333]

Answer:

28 feet farther than 1st ball.

Step-by-step explanation:

We have been given that Susan threw a softball 42 yards on her first try and 51\frac{1}{3} yard on her second try.

To find second ball is how much farther from the 1st ball, we will subtract 42 yards from 51\frac{1}{3} yards.

\text{The second ball is farther from 1st ball}=51\frac{1}{3}\text{ yards}-42\text{ yards}

\text{The second ball is farther from 1st ball}=\frac{154}{3}\text{ yards}-42\text{ yards}

Let us have a common denominator.

\text{The second ball is farther from 1st ball}=\frac{154}{3}\text{ yards}-\frac{42*3}{3}\text{ yards}  

\text{The second ball is farther from 1st ball}=\frac{154}{3}\text{ yards}-\frac{126}{3}\text{ yards}

\text{The second ball is farther from 1st ball}=\frac{154-126}{3}\text{ yards}

\text{The second ball is farther from 1st ball}=\frac{28}{3}\text{ yards}

\text{1 yard}=3\text{ feet}

\frac{28}{3}\text{ yards}=\frac{28}{3}\times 3\text{ feet}

\frac{28}{3}\text{ yards}=28\text{ feet}

Therefore, Susan thrown the second ball 28 feet farther from the 1st ball.

7 0
4 years ago
Find the surface area of the cylinder. Use a ~ 3.14 20 m​
lesantik [10]

Answer:

1444.4 m2

Step-by-step explanation:

Surface Area = 2 * 3.14 * (R*R + R*L) = 2 * 3.14 * (10*10+10*13) = 1444.4 m2

Note .. You can Derive this  

"Surface Area = 2 * 3.14 * (R*R + R*L)"

Using Calculus by differentiating its Volume

V = 3.14 * R * R * L

6 0
3 years ago
Combine like terms: -4x+3-7x-8
Sedaia [141]

Answer:

Basicly you just combine the terms that are the same. Combine -4x and -7x. Also combine 3 with -8.

Step-by-step explanation:

4 0
3 years ago
4. Stacey currently has an account balance of $1,007.78. Her Initial deposit on the account was $616 and it earned 5.3% simple i
Serjik [45]

Answer:

12 Years

Step-by-step explanation:

Simple interest is calculated as I = Prt, where P is the principal (amount of money invested), r = rate of interest written as decimal, and t = time

The amount started as P and incresed by Prt, so

P + Prt = 1007.78

616 + (616)(0.053)t = 1007.78

Now you need to solve for t:

Subtract 616 from both sides and simplify:

32.648t = 391.78

Divide both sides by 32.648:

t = 12

Answer: 12 years

7 0
4 years ago
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