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3 years ago

Solve the problem.

Mathematics

1 answer:

yarga [219]3 years ago

4 0

Answer:

39%

Step-by-step explanation:

Let's find the answer by using the following formula:

selling price=(paid price)+((paid price)*(percent markup)) which can be written as:

percent markup=((selling price)-(paid price))/(paid price)

percent markup=(27.80-20)/20

percent markup=0.39=39%

In conclusion, the percent markup is 39%.

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What does the simple interest stand for? Interest = Principal x Rate x Time Interest = Per unit x Rate x Time Interest = Price x

ValentinkaMS [17]

9514 1404 393

Answer:

(a) Interest = Principal x Rate x Time

Step-by-step explanation:

The letters in the simple interest formula ...

I = Prt

stand for ...

Interest = Principal x Rate x Time

8 0

3 years ago

5^x + 5^x+1= 150 Find x Help me pls i need soon Tksss

raketka [301]

Answer:

$x=2$

Step-by-step explanation:

So we have the equation:

$5^x+5^{x+1}=150$

First, separate the second term:

$5^x+(5\cdot5^x)=150$

Let u equal 5ˣ. So:

$u+5u=150$

Combine like terms:

$6u=150$

Divide both sides by 6:

$u=25$

Substitute back u:

$5^x=25$

Take the base 5 logarithm of both sides:

$\log_5(5^x)=\log_5(25)$

The left cancels:

$x=\log_5(25)$

Evaluate the right:

$x=2$

So, our answer is 2.

And we're done!

5 0

3 years ago

Explain why the sum or product of rational numbers is rational; why the sum of a rational number and an irrational number is irr

Colt1911 [192]

Answer:

Rational numbers are fractional numbers, whose numerator and denominator are integers and the denominator is ever zero.

Step-by-step explanation:

The sum of rational numbers gives a rational number;

$\frac{1}{3}$ + $\frac{1}{3}$ = $\frac{2}{3}$ , because the evaluation of the denominator always results to a non-zero integer.

The product of $\frac{1}{3}$ x $\frac{1}{3}$ = $\frac{1}{9}$ , which multiply both numerator and denominator to give integer numbers.

The sum and product of rational and irrational numbers are always irrational numbers, for instance,

$\frac{1}{3}$ x 7 = 2.3 , which is a number which decimal points that can only be represented by the product irrational number and rational number , where 7 is an irrational number.

$\frac{1}{3}$ + 7 = 7 $\frac{1}{3}$ , which is a whole number and fractional number combined.

4 0

3 years ago

Margo borrows $600, agreeing to pay it back with 4% annual interest after 18 months. How much interest will she pay?

Nastasia [14]

To find the simple interest, we multiply 600 × 0.04 × 1.5 to get that:

The interest is: $36.00

3 0

3 years ago

Evaluate 3^5 : 3^2 Simplify the ratio 4:5 in the form 1:n

blondinia [14]

Answer:

Step-by-step explanation:

3⁵:3² = 3³:1 = 27:1

:::::

4:5 = 1:5/4 = 1:1.25

6 0

3 years ago