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Roman55 [17]
3 years ago
9

Bob can draw 14 shapes in 7 minutes.how long does it take bob to draw 28 shapes at the same rate

Mathematics
2 answers:
grin007 [14]3 years ago
8 0
14 shapes in 7 minutes can be multiplied by 2 to get 28 shapes in 14 minutes.  14 x 2 is 28 and 7 x 2 is 14.  Your answer is 14 minutes.  Bob draws at a rate of 2 shapes per minute.  
miss Akunina [59]3 years ago
5 0
It will take 14 minutes.
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I need the mean, medium, and the mode for these numbers [4,10,11,15,16,16,18,19]​
iren [92.7K]

Hello here would be your answers:

mean: 13.6  

mediun: 15.5  

mode: 16

remember it like this

Mean is the average

Mode is the most often number

Range is when you subtract the smallest number from the largest number

Medium is the middle number when you line it up from the greatest to the least.

hope this helps!

7 0
3 years ago
Solve the following equation
Gnoma [55]
40x+8x^2=0 can be solved for x (there are two solutions):

Divide all 3 terms by the greatest common multiple (which is 8x):

40x+8x^2=0
------------- -----
       8x       8x

5 + x = 0             produces the root x = - 5.   

Setting 8x = 0 and solving for x produces the root x = 0.

Be certain to check these results.  substitute x = -5 into 40x+8x^2=0.  Is the resulting equation true or false?  Next, subs. x=-5 into 40x+8x^2=0.  Is the resulting equation true or false?
5 0
3 years ago
Read 2 more answers
Please need help I will be MARKING as BRIANILIST. thank you so much. ​
Marina86 [1]

Answer:

a. (3,11) (4,15) (5,19) (6,23)

b. it's not proportional because b (from y=mx+b) is not 0

c. the equation is y = 4x - 1

d. graph the y-int (-1) on the y-intercept and then connect the points in a.

Step-by-step explanation:

5 0
3 years ago
Find the value of Z.<br> A)7<br> B)9<br> C)11<br> D)12
Gala2k [10]
As per the isosceles triangle theorem, if the two base angles are congruent then the legs are also congruent, so we must set the two legs equal to each other:

2z - 15 = 9

Add 15 to both sides:

15 - 15 = 0
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Divide 2 from each side:

2z = 24

2z/2 = z

24/2 = 12

z = 12

Hence, the answer would be D: z = 12

4 0
3 years ago
Read 2 more answers
A certain electronics manufacturer found that the average cost C to produce x DVD/Blu- ray players can be found using the equati
Marina CMI [18]

Answer:

Minimum average cost = 743.75

Number of dvds to achieve the cost = 62.5

Step-by-step explanation:

Given the cost equation

C = 0.04x² − 5x + 900

To Obtian the minimum average cost ;

Find dc/dx = 0

Diffentiate cost, c it ith respect to x

dc/dx = 2(0.04x) - 5

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0.08x = 5

x = 5 / 0.08

x = 62.5

Substitute the value of x into C to obtain the minimum average cost

C = 0.04(62.5)² - 5(62.5) + 900

C = 743.75

6 0
2 years ago
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