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german
2 years ago
6

The price of a watch was increased by 7% to 1350. what was the price before increase?

Mathematics
2 answers:
Inessa05 [86]2 years ago
6 0

Answer:

The price before increase = 1255.5

Step-by-step explanation:

7% of 1350 = \frac{7*1350}{100}

= 94.5

The price before increase = 1350 - 94.5

The price before increase = 1255.5

Sophie [7]2 years ago
3 0

Answer:

The price before the increase was

<u>$1255.50.</u>

<u></u>

Step-by-step explanation:

Inputs:

Original Price: $1350.00

Discount Percentage: 7%

Results:

Discount: $94.50

Final Price: <u>$1255.50</u>

So since 7% off of $1350.00 is $1255.50, you're saving $94.50.

Hope I helped.

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If another line is perpendicular to the line shown on the graph, what must be its slope
Shtirlitz [24]

It's B

Slope is negative, the other must be positive due to m1 x m2 = - 1

m1 = -2/5

The diagram shows a gradient of -2/5. So, the

reciprocal of this valve to make - 1 is 5/2 (which is the - 2/5 flipped upside down, but positive)

-2/5 x 5/2 = - 10/10 (or - 1)

Thus, the perpendicular line to this has a gradient of 5/2.

Hope this helps!

4 0
1 year ago
Find each angle measure in the figure<br><br><br><br>The angle measures are ___°, ___° And ___°.​
Nata [24]

Answer:

<h3>hope it helps</h3><h3>stay safe healthy and happy.</h3>

4 0
2 years ago
Read 2 more answers
Find the sample standard deviation of the following data set, using the statistical functions on your calculator.0.2315 0.4725 0
Nonamiya [84]

Answer:

Option C) 0.2358

Step-by-step explanation:

We are given the following data set:

0.23105, 0.4725, 0.8765, 0.4865, 0.5326, 0.7976

Formula:

\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}  

where x_i are data points, \bar{x} is the mean and n is the number of observations.  

Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}

Mean =\displaystyle\frac{3.39675}{6} = 0.566125

Sum of squares of differences = 0.1122752556 + 0.008765640625 + 0.09633264063 + 0.006340140625 + 0.001123925625 + 0.05358067562 = 0.2784182787

S.D = \sqrt{\frac{0.2784182787}{5}} = 0.2358

Thus, the standard deviation for given data is

Option C) 0.2358

7 0
3 years ago
The function f(x)=70n -400 models the profit of the instructor of a guitar class per month, where n is the number of students en
suter [353]
Given:
f(x) = 70n - 400   : equation for monthly profit.
n = number of students enrolled in the guitar class.

70 refers to the amount charged per student.
400 is the fixed expense made by the instructor.

For the instructor to have a profit, the product of 70n must be more than 400.

400/70 = 5.7 or 6

There must be at least 6 students enrolled in class for the instructor to generate profit.

f(x) = 70(6) - 400 = 420 - 400 = 20

1000 = 70n - 400
1000 + 400 = 70n
1400 = 70n
1400/70 = n
20 = n

There must be 20 students enrolled in class for the instructor to earn 1000 in profit.

1000 = 70(20) - 400
1000 = 1400 - 400
1000 = 1000

3 0
3 years ago
Which statement represents the expression 11 (30 + 7)?
allochka39001 [22]

Answer:

330+77= 407

Step-by-step explanation:

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