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ale4655 [162]
3 years ago
11

At a sale , dresses were sold for 35% of their original price. If the dresses originally cost 40$ each how much did a dress cost

on sale
Mathematics
1 answer:
Thepotemich [5.8K]3 years ago
7 0

Answer:

$14

Step-by-step explanation:

35% is the same as multiplying by .35

40 * .35 = 14

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Use the distributive property to model the product on the grid 4x12=
kykrilka [37]
The correct answerr is 48 
7 0
3 years ago
A nursing student works at a doctor's office for $15 per hour and tutors other students for $25 per hour.
k0ka [10]

The system of inequalities represents the given constraints will be x + y < 20 and 15x + 25y > 375.

<h3>What is inequality?</h3>

Inequality is defined as an equation that does not contain an equal sign. Inequality is a term that describes a statement's relative size and can be used to compare these two claims.

A nursing student works at a doctor's office for $15 per hour and tutors other students for $25 per hour.

Let x be the number of hours for the doctor's office and y be the number of hours for the tutor.

The student cannot work more than 20 hours each week.

      x + y < 20 ...1

15x + 25y > 375 ...2

The system of inequalities represents the given constraints will be x + y < 20 and 15x + 25y > 375.

More about the inequality link is given below.

brainly.com/question/19491153

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8 0
2 years ago
i haven't submitted a single assignment for this class since winter break bc i didn't realize she was assigning things on goform
rosijanka [135]

Answer and Step-by-step explanation:

<u>Trigonometric Function (These only work for right triangles):</u>

SOH-CAH-TOA

S = Sine = sin

C = Cosine = cos

T = Tangent = tan

O = Opposite (side)

H = Hypotenuse (side)

A = Adjacent (side)

SOH = sin(angle) = \frac{opposite}{hypotenuse}

CAH = cos(angle) = \frac{adjacent}{hypotenuse}

TOA = tan(angle) = \frac{opposite}{adjacent}

1. sinQ (Q is the angle) = \frac{14}{50}  = \frac{7}{25} = 0.28

Use Pythagorean Theorem to find side PQ.  14^{2} + PQ^{2}= 50^{2} \\PQ^{2}  = 2304\\PQ = 48

2. cosQ = \frac{48}{50} = \frac{24}{25} = 0.96

3. tanQ = \frac{14}{48}  = \frac{7}{24}  = 0.29

3 0
2 years ago
Percentage grade averages were taken across all disciplines at a particular university, and the mean average was found to be 83.
Georgia [21]
Correct Ans:
Option A. 0.0100

Solution:
We are to find the probability that the class average for 10 selected classes is greater than 90. This involves the utilization of standard normal distribution.

First step will be to convert the given score into z score for given mean, standard deviation and sample size and then use that z score to find the said probability. So converting the value to z score:

z-score= \frac{90-83.6}{ \frac{8.7}{ \sqrt{10} } } \\  \\ &#10;z-score =2.326

So, 90 converted to  z score for given data is 2.326. Now using the z-table we are to find the probability of z score to be greater than 2.326. The probability comes out to be 0.01.

Therefore, there is a 0.01 probability of the class average to be greater than 90 for the 10 classes.
5 0
3 years ago
Write the numbers in expanded form 592,682
Alona [7]
Five hundred ninety two thousand six hundred eighty two
6 0
3 years ago
Read 2 more answers
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