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3 years ago

Please can someone explain how to work out this

Mathematics

1 answer:

wariber [46]3 years ago

6 0

Answer:

T = 4B + 10C

Step-by-step explanation:

Since there are 4 doughnuts in a bag then there are 4B doughnuts in B bags

Since there are 10 doughnuts in a carton then there are 10C doughnuts in C cartons, thus summing the two quantities gives

T = 4B + 10C

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Please answer! Will mark brainliest. -3|5x-2|>4

Mrac [35]

Answer:

Step-by-step explanation:

eact from : x= 2, 6/5

decial from : x= 2, -1.2

mixed number from :x= 2, - 1 1/5

6 0

3 years ago

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What is the percent of change to 125 centimeteres 87.5 centimeters?

MrRa [10]

I hope this helps you

125-87,5=37,5

125 37,5

100 ?

?.125=100.37,5

?=3750/125

?=30

30%

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3 years ago

The diameter of a circle has length 12. The center is at*(-5, 2). Give the equation

labwork [276]

Answer:

Equation of the circle is : $x^{2} + 10x + y^{2} -4y -7 =0$

Step-by-step explanation:

Let us consider the image attached in the answer area.

The center O has the co-ordinates i.e. (-5,2) and the diameter given is 12 units.

We know that radius is half of diameter.

$\text{Radius = }\dfrac{\text{Diameter}}{2}$

$\text{Radius = }\dfrac{12}{2}\\\Rightarrow \text{Radius = 6units}$

The equation for circle given the center and radius, can be represented as:

$(x-a)^{2}+ (y-b)^{2} = r^{2}$

Where (a,b) is the co-ordinate of center and r is the radius.

Let us consider the following formula:

$(p+q)^2 = p^{2}+ q^{2} +2pq\\(p-q)^2 = p^{2}+ q^{2} -2pq$

$(x-(-5))^{2}+ (y-2)^{2} = 6^{2}\\\Rightarrow (x+5)^{2}+ (y-2)^{2} = 36\\\Rightarrow x^{2} + 25 + 10x +y^{2} + 4-4y=36\\\Rightarrow x^{2} + 10x +y^{2} -4y-7=0$

Hence, Equation of the circle is : $x^{2} + 10x + y^{2} -4y -7 =0$

4 0

3 years ago

If a car is traveling 75 miles per hour, how many feet will it travel in 10 seconds ?

Arisa [49]

Answer:

1100

Step-by-step explanation:

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3 years ago

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(!) Brainliest Will Be Given (!)

Kobotan [32]

Answer:

Mean- 85.6

Median- 90

Mode- 95

Range- 35

(95-60= 35)

Hope that helps

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3 years ago