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VARVARA [1.3K]
3 years ago
10

40% of what number is 15?

Mathematics
2 answers:
Fiesta28 [93]3 years ago
4 0

Answer:

15 is 40% of 37.5

Step-by-step explanation:


Goshia [24]3 years ago
3 0

15 is 40% of 37.5

40

100

× x = 15

Multiplying both sides by 100 and dividing both sides by 40,

we have x = 15 ×

100

40

x = 37.5

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A shape is covered by 40 unit squares. What is the area of the shape
ollegr [7]
Hello!

I believe that the answer would be 40²

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6 0
3 years ago
I need help with this,, will give brianliest and +15 points
Anit [1.1K]

Answer:

41x² - 27x + 27

Step-by-step explanation:

Perimeter of Rectangle:

= 2(20x²-12x+4) + 2(5x²-5x+15)

= 40x²-24x+8 + 10x²-10x+30

= 50x²-34x+38

Perimeter of Triangle:

= 6x²+6x+3x+3+3x²-2x+8

= 9x²+7x+11

Difference:

(50x²-9x²)+(-34x+7x)+(38-11)

= 41x² - 27x + 27

8 0
2 years ago
A rectangular piece of land is 73/3 meter long and 61/4 meter wide.Find it's perimeter. Please solve it
Strike441 [17]

Answer:

49 1/6 meters

Step-by-step explanation:

P = 2(73/3) + 2(61/4)

= 146/3 + 61/2

= 48 2/3 + 30 1/2

= 48 4/6 + 30 3/6

= 48 + 7/6

= 48 + 1 1/6

= 49 1/6

5 0
3 years ago
Read 2 more answers
A metal cube contracts when it is cooled. if the edge of the cube is decreasing at a rate of 0.2 cm/hr, how fast is the volume c
aleksandr82 [10.1K]

Answer:

2160 cm³/hour

Step-by-step explanation:

By default, we know that the volume of a cube is given as s³

Thus, the Volume function, V = s³

When we differentiate with respect to time we have

dV/dt = 3s² (ds/dt), where ds/dt = 0.2

Then we go ahead and substitute all the given parameters

dV/dt = 3 x 60 x 60 x 0.2

dV/dt = 10800 * 0.2

dV/dt = 2160 cm³/hour

This means that the volume decreases by a rate of 2160 cm³/hour at the instant its edge is 60 cm

7 0
2 years ago
34.8 x 0.007 basic math
ra1l [238]
0.2436 is the answer
4 0
2 years ago
Read 2 more answers
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