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astraxan [27]
3 years ago
5

Three friends got jobs at stores in the mall. Nina earns $117.60 117 60 for 14 14 hours of work. Ty earns $148.50 148 50 for 18

18 hours of work. Kim earns $137.60 137 60 for 16 16 hours of work. Who has the highest pay rate in dollars per hour?
Mathematics
2 answers:
Gekata [30.6K]3 years ago
3 0

Answer:

  Kim

Step-by-step explanation:

Nina's rate is $117.60/(14 h) = $8.40/h

Ty's rate is $148.50/(18 h) = $8.25/h

Kim's rate is $137.60/(16 h) = $8.60/h

Kim has the highest pay rate in dollars per hour.

laila [671]3 years ago
3 0
Kim earn the most per hour. You take the amount earned buy each person and divide it by how many hours they worked
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The measures of two angles are 4x and (2x+12). what is the measurement of each angle if x=13?
oksano4ka [1.4K]

Answer:

52 and  38

Step-by-step explanation:

If x = 13 then 4x = 4 * 13 so 52.  

Same for the next one.  2x = 2 * 13 so 26.  26+12 is 38.  

Done...

7 0
3 years ago
Need help on this one
malfutka [58]

Answer:

3

Step-by-step explanation:

To simplify this expression, we will simply work with the numerator, then the denominator, and then the fraction as a whole, following PEMDAS.

Numerator:  12 - 6 + 5 * (-3)^2

= 12 - 6 + 5 * (9)

= 12 - 6 + 45

= 6 + 45

= 51

Denominator:  17

So our simplified fraction is as follows:

51/17

Which can be reduced to the whole number, 3.

Cheers.

3 0
3 years ago
In the right ABC with C=90,A=75 and AB=12cm. Find the area of ABC
Ganezh [65]

Answer:

18 cm^2

Step-by-step explanation:

The legs of a right triangle are the base and height of the triangle.

Since C is a right angle, AB is the hypotenuse.

AC and BC are the legs and the base and height.

sin 75 = BC/12

BC = 12 sin 75

cos 75 = AC/12

AC = 12 cos 75

area = bh/2 = (12 sin 75)(12 cos 75)/2

area = 18 cm^2

6 0
3 years ago
A box with an open top has vertical sides, a square bottom, and a volume of 108 cubic meters. if the box has the least possible
Colt1911 [192]
Let x be the height  of the  box and y be the length of one side of the base then:-

V = xy^2 = 108

x = 108/y^2

Surface area = y^2 + 4xy 
S = y^2 + 4y* 108/y^2
S = y^2 + 432/y
Finding the derivative:-
dS/dy  = 2y - 432/y^2  = 0
2y^3 = 432
y^3 = 216
y = 6 

Check if this gives a minimum value:-
second derivative = 2 + 864/y^3  which is positive so  minimum.

V = xy^2 = 108
36y = 108
y = 3

Answer :-  dimensions of the box is 3*6*6 metres


 
7 0
3 years ago
Compute Δy using the function y= 5x^3 as x goes from -2 to 1.<br> Δy =?
Elenna [48]

The value of Δy using the function y= 5x^3 as x goes from -2 to 1 is; Δy = 45

The question requests that Δy be computed according to the function, y = 5x³ as x goes -2 to 1.

  • Δy = y2 - y1

where:

  • y1 = 5(-2)³

  • y1 = -40

and

  • y2 = 5(1)³

  • y2 = 5

Therefore,

  • Δy = y2 - y1

  • Δy = 5 - (-40)

Δy = 45.

Read more:

brainly.com/question/12559989

8 0
2 years ago
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