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Lunna [17]
3 years ago
7

A paint company charges $5.00 per square foot and a $380.00 flat fee. The company is offering a 10% discount on the total painti

ng cost during the month of May.
Which equation shows the cost y, in dollars, of painting a room that is x square feet during the month of May?
Mathematics
1 answer:
rjkz [21]3 years ago
3 0

Answer:

y=(5x+380)/10

Step-by-step explanation:

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A bank manager wanted to​ double-check her claim that recent process improvements have reduced customer wait times to an average
mojhsa [17]

Answer:

the manager claim is therefore rejected.

Step-by-step explanation:

To ascertain the manager claim, we use the normal distribution curve.

z= (x − x')/ σ

, where

z is called the normal standard variate,

x is  the value of the variable, =2.9

x' is the mean value of  the distribution =3.3

σ is the standard deviation  of the distribution= 0.8

so, z= (2.9 − 3.3)/ 0.8 = -0.5

Using  a table of normal distribution to check the partial areas beneath the standardized  normal curve,  a z-value of −0.5  corresponds to an area of 0.1915 between the mean  value.The negative  z-value shows that it lies to the left of the z=0  ordinate.

The total area under the standardized normal curve  is unity and since the curve is symmetrical, it follows  that the total area to the left of the z=0 ordinate is  0.5000. Thus the area to the left of the z=−0.5 ordinate is 0.5000−0.1915 = 0.3085 of the  total area of the curve.

therefore, the probability of the average wait time greater than or equal to 3.3 minutes is 0.3085.

For a group of 25 customers, 25×0.3085 = 7.7, i.e. 8 customers only experience the improvement in wait time.

the manager claim is therefore rejected.

4 0
3 years ago
10x-7x+3<br> simply plssss
lawyer [7]

Answer:

3x+3

plz mark brainliest

7 0
3 years ago
Read 2 more answers
PLZ HURRY!!! 15 POINTS!!
Liula [17]
Y = 10x is the solution in slope-intercept form
4 0
3 years ago
One-third of the results of three times a number that is increased by 12.
iragen [17]
1/3 (3x+12)
1/3×3x+1/3×12
x+4
3 0
3 years ago
The number w and 0.8 are additive inverses.
umka2103 [35]

Since, the number w and 0.8 are additive inverses.

A number 'a' is said to have an additive inverse '-a' if "a+ (-a)= 0".

Since, 'w' and '0.8' are additive inverses of each other such that w + 0.8 = 0

Therefore, the value of 'w' should be '-0.8' so that -0.8 + 0.8 = 0.

So, the value of 'w' is =0.8

Now, Refer to the attached image which represents the position of 0.8 , w ( that is -0.8) and the sum of 0.8 and w.

Sum of 0.8 and w = 0.8 + w

= 0.8 +(-0.8)

= 0.

3 0
3 years ago
Read 2 more answers
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