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nata0808 [166]
3 years ago
10

Solve this problem 6.3=0.9y

Mathematics
2 answers:
Anni [7]3 years ago
7 0
6.3 = 0.9y 


y would equal 7
pochemuha3 years ago
6 0
Divide both side by 0.9 this will isolate the y 
y=6.3/0.9
y=7 
6.3=0.9(7)
6.3=6.3 check


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Please help me answer all parts of question 3 in the photo.
Nookie1986 [14]
(i.) CA = πrl
CA = π (5*13)
CA = 65π

(ii.) TA = πrl + πr^2
TA = 65π + π (5^2)
TA = 65π + 25π
TA = 90π

(iii.) To get the height of the cone, you have to use the Pythagorean theorem. Plug in the radius for a and the slant height for c.

a^2 + b^2 = c^2
5^2 + b^2 = 13^2
25 + b^2 = 169 Height = 12
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b = 12

(iv.) v = (1/3)πr^2h
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3 0
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Alex is making a pizza. The round pizza pan has a 16 inch diameter. What is the area of the pizza crust needed to fill the entir
Lubov Fominskaja [6]

Answer:

The area of the pizza crust is 200.96 inches²

Step-by-step explanation:

* Lets explain how to solve the problem

- The area of any circle is πr² , where r is the length of its radius

- The length of the diameter of any circle is twice the length of

  its radius (diameter = 2 radius)

* Lets solve the problem

- Alex is making a pizza

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∵ The diameter of the pan is 16 inches

∵ The radius of the pan = 1/2 diameter

∴ The radius of the pan = 1/2 (16) = 8 inches

∵ The area of the pan = πr²

∵ π = 3.14 and r = 8 inches

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∵ The area of the pizza pan = the area of the pizza crust

∴ The area of the pizza crust is 200.96 inches²

7 0
2 years ago
Write one sentence using the word approximate .
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Step-by-step explanation:

3 0
2 years ago
Y - 4x = 5<br> 8x - 2y = 16<br> Solve using system of equations
kumpel [21]

Answer:

No solution

Step-by-step explanation:

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y - 4x = 5

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--------------

0x + 0y = 13.  This is NEVER true.  This system of equation has NO  SOLUTION.

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3 years ago
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