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Bingel [31]
3 years ago
9

Suppose you have $10 and your brother has $54. If you decide to save $10 of your allowance each week and your brother decides to

save $6 of his allowance each week, in how many weeks will you have the same amount of money?
Set up the problem in steps please
Mathematics
2 answers:
valentina_108 [34]3 years ago
6 0
9999999999999999999999999
abruzzese [7]3 years ago
4 0

Answer:  11 weeks

Step-by-step explanation: 11 x 10 + 10 = $120 and 11 x 6 +54 = $120

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URGENT Match each ratio of the volumes of two solids to the pair of solids it represents.
Anarel [89]
1. cylinder to cone:
  (πr^2h)/((1/3)πr^2h) = 3:1

2. sphere to cylinder:
  ((4/3)πr^3)/(πr^2h) = 4r:3h

3. cone to sphere:
  ((1/3)πr^2h)/((4/3)πr^3) = h:4r

4. hemisphere to cylinder:
  half the ratio of sphere to cylinder = 2r:3h
4 0
3 years ago
Please please please help. thank you.
djverab [1.8K]
Lets get started :)


The First question:
Diameter = 20 ft
Radius = \frac{1}{2} of 20 (diameter) = 20 ft

Area formula of a circle is
A = \pir²
    =\pi(10)²
    =100\pi ft²
    ≈ 314 ft²

The answer will be the second option

The Second question:
radius of circle = 12mm  divided into 20 sectors area

A = \pir²
   = \pi(12)²
   = 144\pi ft²

Divide into 20 equal sector areas = \frac{144 \pi }{20} = 7.2 \pi

≈ 22.6 mm²

Your answer will be the third option

The Third Question:

90°, sector area = 36\pi , Radius = ?

\frac{angle}{360} = \frac{sector}{ \pi (r)^2}
\frac{90}{360} = \frac{36 \pi }{ \pi r^2}
\pi and \pi cancels out

We can now cross multiply
360 × 36 = 90r²
12960 = 90r²

Divide by 90 on either side

\frac{12960}{90} = \frac{90r^2}{90}
144 = r²

Take squareroot 
 \sqrt{144} = x
x = 12 in

Your answer will be the third option




4 0
3 years ago
If (x)=2x^2-x-6 and g(x)=x^2-4, find f(x) ÷g(x)
liq [111]
F(x) / g(x) = (2x + 3)(x-2)/(x-2)(x+2) = (2x+3)/(x+2) 
6 0
3 years ago
20 POINTS HURRY PLEASE
irina1246 [14]

Answer:

Not a right-angle triangle

Step-by-step explanation:

15² = 12² + 8²

225 = 144 + 64

225 = 208 is a false statement

So not a right angle triangle

4 0
3 years ago
Read 2 more answers
Sal’s Sandwich Shop sells wraps and sandwiches as part of its lunch specials. The profit on every sandwich is $2, and the profit
IceJOKER [234]

Answer: come on, use your brain.

42

Step-by-step explanation:

6 0
3 years ago
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