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Ivan
3 years ago
9

A technique that allows shoppers to compare prices?

Mathematics
1 answer:
Roman55 [17]3 years ago
3 0

A) comparison shopping is the answer

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Dominique can ice cupcakes twice as fast as Houston. When they work together, Dominique and Houston can ice a large order of cup
olganol [36]
This is a work problem. It can be solved as follows:

Houston = 1/x
Dominique = (1/2x)
Together = 1/5

Then, we add Houston and Dominique:

1/x + 1/2x = 1/5

Solve for x,

x = 2/15

Therefore, it would take 15/2 hours for Houston to ice by himself, the last option.
6 0
3 years ago
Read 2 more answers
A melting spherical block of ice has its surface area changing at the rate of 24 inch2 /sec at the time the radius is 3 inches.
emmainna [20.7K]
The surface area of the sphere is:
 A = 4 * pi * r ^ 2
 Deriving we have:
 A '= 8 * pi * r * r'
 We clear the speed:
 r '= A' / (8 * pi * r)
 Substituting values:
 r '= 24 / (8 * pi * 3)
 r '= 1 / pi inch / sec
 Then, the volume of the sphere is:
 V = (4/3) * (pi) * (r ^ 3)
 Deriving we have:
 V '= (3) * (4/3) * (pi) * (r ^ 2) * (r')
 Substituting values:
 V '= (3) * (4/3) * (pi) * (3 ^ 2) * (1 / pi)
 Rewriting:
 V '= (4) * (9)
 V '= 36 inch3 / sec
 Answer:
 
the volume of the ice is changing at 36 inch3 / sec at that moment
4 0
3 years ago
Pherris is graphing the function f(x) = 2(3). He begins with the point (1,6). Which could be the next point on his graph?
djverab [1.8K]

Answer:

Its actually (2,18)

3 0
2 years ago
A + (b-4) when a-24 and b-7
lara31 [8.8K]

Answer:

a=24

b=7

now

24+(7-4)

24+3

27

so the answer is 27

5 0
2 years ago
Help ASAP!! This one's is difficult for me to understand!! Help me please!
IceJOKER [234]

Answer:

Ok so im in 7thgrade so ima try to help answer is x= 8x9

4 0
3 years ago
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