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chubhunter [2.5K]
3 years ago
6

And 2015 the price of business math text Rose $210 this is 9% more than 2014 price what is old selling price round to the neares

t cent
Mathematics
2 answers:
Anni [7]3 years ago
8 0
$210 x .09 = $18.90 is the increase...
so the price 2014 was $191.10
Monica [59]3 years ago
8 0

Answer:

The old selling price is $192.66

Step-by-step explanation:

Let the price in 2014 be x

Now the price in 2015 is 9 % more

So, price in 2015 = x+9\% x

                             = x+\frac{9}{100}x  

                             = \frac{109}{100}x  

We are also given that In 2015 the price of business math text Rose is $210.

So, \frac{109}{100}x=210  

x=210 \times \frac{100}{109}  

x=192.66  

Hence The old selling price is $192.66

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Select the system of linear equations that has the solution (-6, 0).
xxTIMURxx [149]

Answer:

B.

• x+2y=-6

• x-2y=-6

Step-by-step explanation:

Try the solution in the equations and choose the set of equations that is true.

___

A. -6+0 ≠ 0 . . . not this system

__

B. -6 +2·0 = -6 . . . true

-6 -2·0 = -6 . . . true . . . . . this system has solution (-6, 0)

__

C. -6 -6·0 ≠ 1 . . . not this system

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D. 4(-6)+3·0 ≠ -18 . . . not this system

3 0
3 years ago
Emma went to a salon to get her hair cut. The price of the haircut is $65. She wants to leave a 20% tip. What is the total amoun
Murrr4er [49]

Answer:

She should leave a total of $78.

Step-by-step explanation:

To find this, we first need to find the tip amount. We can do this by multiplying the total by the tip percentage.

$65 * 20% = $13

Now that we have that, we need to add it to the cost.

$65 + $13 = $78

5 0
3 years ago
Find the sum: -11 + (-8)
Kipish [7]

Answer:

-19

Step-by-step explanation:

-11+(-8)

-11-8

-19

hole this is correct

3 0
2 years ago
  Sarah Wiggum would like to make a single investment and have ​$1.7 million at the time of her retirement in 34 years. She has
vovangra [49]

Answer:

Sarah has to invest $502,958.58 today.

Step-by-step explanation:

This is a simple interest problem.

The simple interest formula is given by:

E = P*I*t

In which E is the amount of interest earned, P is the principal(the initial amount of money), I is the interest rate(yearly, as a decimal) and t is the time.

After t years, the total amount of money is:

T = E + P

In this question:

t = 35, I = 0.07, T = 1700000

She has to invest P today.

T = E + P

1700000 = E + P

E = 1700000 - P

So

E = P*I*t

1700000 - P = P*0.07*34

3.38P = 1700000

P = \frac{1700000}{3.38}

P = 502958.58

Sarah has to invest $502,958.58 today.

8 0
3 years ago
Kendra ordered a set of blue and brown pins. She received 100 pins, and 30% of them were blue. How many blue pins did Kendra rec
natka813 [3]

Answer:

30 blue pins

Step-by-step explanation:

30% is the same as 30 out of 100, so this can be written in this fraction: \frac{30}{100}

now, you should multiply this fraction by the total number of pins she ordered:

100 x \frac{30}{100}

to solve this, you can simplify by dividing 100 by 100, this equals 1

30 times 1 is 30

there are 30 blue pins

8 0
2 years ago
Read 2 more answers
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