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brilliants [131]
3 years ago
14

Sandy wants to buy a new cell phone. She knows the phone will cost her x dollars and 7% sales tax. She creates an expression x+7

%=the total for the cell phone. Identify another way she could write this expression.
A. 1.07x

B. 107x

C. x+.07

D. .07x
ASAP!!!!!!!!!!!!!!!!!!
Mathematics
1 answer:
Vanyuwa [196]3 years ago
8 0
C. x+.07
I think this is the right answer
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A small resort is situated on an island that lies exactly 3 miles from P, the nearest point to the island along a perfectly stra
Artemon [7]

Answer:

The distance from the  shoreline from P the pipe from the island will reach land in order to minimize the total construction cost is 0 m, or the pipe should be routed to the point P

Step-by-step explanation:

We note that, cost to lay pipe in water = 2.3 × cost to lay pipe on land

Distance of the small resort on the island from point p on the shoreline = 3 miles

Location of the closest source of fresh water is 10 miles along the shoreline from p

∴ The small resort, the point p and the closest source of the fresh water on the shoreline together form a right triangle with sides

Height = 3 miles

Base = 10 miles and

Hypotenuse = \sqrt{3^2 + 10 ^2} = \sqrt{109} =  10.44 \, m

To find the cost of laying the pipeline by the various route, we multiply the water routes by 2.3 and the land routes by 1 and we get

Costs:

Height =  Water route = 2.3 × 3 miles = 6.9

Base = Land route = 1 × 10 miles = 10

Hypotenuse = Water route = 2.3 × 10.44 miles = 24.012

Therefore, the two routes are either

10 miles to point p and 3 miles across the water to the resort with a cost = 10 + 6.9 = 16.9 or

Directly to the small resort through 10.44 miles across the water with cost = 24.012

Therefore, to minimize cost, the pipe should come from the resort to P from there to the fresh water source.

That is the distance from the  shoreline from P the pipe from the island will reach land in order to minimize the total construction cost = 0 m.

7 0
3 years ago
Please Help I need help and fast
IrinaVladis [17]

Answer:

150 m/s

Step-by-step explanation:

3 0
2 years ago
Adding negative numbers
jekas [21]

Step-by-step explanation:

-5 × -5 = 25

-6 + 5 = 1

-3 + 5 = -8

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Yolanda made 21 hats. Yolanda made 3 times as many hats as Greg. Let n be the number of hats that Greg made.
castortr0y [4]

Answer:

63

Step-by-step explanation:

A) 21(3)=n

B) 63

3 0
3 years ago
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colleen rolls a number cube and flips a coin. What is the probabilty that she will roll at least a 3 or flip heads
anyanavicka [17]
The probability of her rolling at least a 3 and flipping heads is 4/12 or 33 1/3 %.  

4/6 * 1/2 = 4/12= 1/3 =0.3333333 = 33 1/3% or 33.33333%

I hope this helps!!

6 0
3 years ago
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