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Anettt [7]
2 years ago
5

How does the method for solving equations with fractional or decimal coefficients and constants compare with the method for solv

ing equations with integer coefficients and constants?
The methods are essentially ____. The only extra step is that you ____ solving by eliminating the fractions or the decimals from the equation.

In the first missing spot it should be different or the same
In the sec missing spot it should be finish or begin
Mathematics
1 answer:
I am Lyosha [343]2 years ago
6 0

Answer:

Step-by-step explanation:

When solving equations with fractional or decimal coefficients, the equations needs to be multiplied by the multiple of denominator such that the equations have integer coefficients and constants

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Solve for z:<br><br> 25z+85=90<br><br> z= <br> this confuses me and I need help ;-;
seraphim [82]
Z=1/5

Subtract 85 from both sides which gets you 25z=5.


Divide both sides by 25 which is z=5/25

Simplify which gives us the answer z=1/5.
4 0
2 years ago
Read 2 more answers
Jill will go to the swimming pool on 20 different days this month.
yulyashka [42]

Answer:

15

Step-by-step explanation:

2.25 times 20=45

45-30=15

4 0
3 years ago
When x = 5, the value of the expression 20/-25+x–2(x – 10) is –21 –9 9 19
aleksley [76]

Answer:

b

Step-by-step explanation:

b

6 0
3 years ago
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21. Paul has $900 to invest in a savings account that has an annual interest rate of 1.8%, and a money market account that pays
Iteru [2.4K]

The polynomial that gives the interest earned after a year will have variables, exponents and constants that are joined by operators.

  • The interest earned after one year is <u>0.018·x</u>

Reasons:

The amount Paul has to invest = $900

The annual interest rate from the savings account = 1.8%

The amount the money market account pays per year = 4.2 %

Required: The polynomial for the interest Paul earned by investing <em>x</em> dollars in the savings account.

Solution:

The interest earned is found using the compound interest formula as follows;

\displaystyle A = \mathbf{P \cdot \left(1 + \frac{r}{n} \right)^{n \cdot t}}

Where;

A = The amount in the account after one year

P = The original amount invested = x

r = The interest rate offered on the investment = 1.8% = 0.018

t = The time of the investment = 1 year

n = The number of times of application of the interest per period = Once per year

Which gives;

Interest = Amount earned = A - P

Therefore;

\displaystyle Interest, \ I  = \mathbf{P \cdot \left(1 + \frac{r}{n} \right)^{n \cdot t} - P}

Plugging in the values gives;

\displaystyle I  = x \cdot \left(1 + \frac{0.018}{1} \right)^{1 \times 1} - x = x \cdot 1.018^1 - x = 1.018 \cdot x - x = 0.018 \cdot x

The polynomial equation is therefore;

Interest, I = 0.018·x

Using the simple interest formula, we have;

\displaystyle Interest = \mathbf{\frac{P \times r \times t}{100}}

Which gives;

\displaystyle Interest = \frac{x \times 1.8 \times 1}{100}  = 0.018 \cdot x

Interest earned by investing in the savings account for one year, I = 0.018·x

  • The polynomial representing the interest earned is <u><em>I</em></u><u> = 0.018·x</u>

Learn more here:

brainly.com/question/11314161

4 0
2 years ago
The pair of figures is similar. Find the missing side.
sergejj [24]
X=5
because 3 goes into 12 4 times and 20 divided by 4 equals 5
8 0
3 years ago
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