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Papessa [141]
3 years ago
10

Ella has 50 stacks of ten pennies in each stack. Describe how to find how many pennies Ella has it all.

Mathematics
2 answers:
bagirrra123 [75]3 years ago
6 0
In each (1) stack, Ella has --> 10 pennies.
Then in 50 stacks, Ella will have --> 10 x 50 = 500 pennies.
Softa [21]3 years ago
5 0
You would multiply 50 by ten to get 500 pennies.
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the area of a rectangle is 96m^2 and the circumference is 39.2m. Determine the dimensions if the rectangle​
goldenfox [79]

Answer:

Dimension => 10 m × 9.6 m

Step-by-step explanation:

From the question given above, the following data were obtained:

Area (A) = 96 m²

Circumference (C) = 39.2 m

Dimension =.?

Next, we shall determine the Lenght and breadth of the rectangle. This can be obtained as follow:

Let L be the Lenght

Let B be the breadth

Area of a rectangle = L × B

96 = L × B ..... (1)

Circumference of rectangle = 2(L + B)

39.2 = 2(L + B) .... (2)

From equation 2, make L the subject

39.2 = 2(L + B)

Divide both side by 2

39.2 /2 = L + B

19.6 = L + B

Rearrange

L = 19.6 – B ....(3)

Substitute the value of L in equation 3 into equation 1

96 = L × B

L = 19.6 – B

96 = (19.6 – B ) × B

Clear bracket

96 = 19.6B – B²

Rearrange

B² – 19.6B + 96 = 0

Solving by factorisation

B² – 10B – 9.6B + 96 = 0

B(B – 10) – 9.6(B – 10) = 0

(B – 9.6)(B – 10) = 0

B – 9.6 = 0 or B – 10 = 0

B = 9.6 or B = 10

Substitute the value of B into equation 3:

L = 19.6 – B

B = 9.6

L = 19.6 – 9.6

L = 10

Or

L = 19.6 – B

B = 10

L = 19.6 – 10

L = 9.6

Since the length is always longer than the breadth,

Length (L) = 10 m

Breadth (B) = 9.6 m

Finally, we shall determine the dimension of the rectangle. This can be obtained as follow:

Length (L) = 10 m

Breadth (B) = 9.6 m

Dimension =?

Dimension = L × B

Dimension = 10 m × 9.6 m

5 0
3 years ago
What is six times the difference of a number is 9 and 18
AVprozaik [17]

Answer: 6 x (18-9) = 54

Step-by-step explanation: 18-9 is 9 and 6 times 9 is 54

6 0
2 years ago
Fill in the blanks<br> 3:4 = 6:_ = 9:_ = _:16 = _:20 = 18:_?????
Virty [35]

3:4 = 6:8 = 9:12 = 12:16 = 15:20 = 18:24

3 0
2 years ago
How do you find the surface area if your radius is 5 and your length is 10
ser-zykov [4K]
Surface Area of a Cone = (pi)*(radius)*(radius) + (pi)*(radius)*(length)

radius = 5
length = 10

SA = 25pi + 50pi = 75pi or about 235.619
6 0
3 years ago
Find the value of x.
grandymaker [24]
I think X is 2. But I am not sure, cuz I don’t know what you teacher is really asking you to do.

8 0
2 years ago
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