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svp [43]
3 years ago
5

The sales tax in one state is 7%. Write a function rule for finding the total cost of an item with selling price x. Then find th

e total cost of a CD player with a selling price of $150.
Mathematics
1 answer:
stira [4]3 years ago
8 0

Answer:

150$ / 7 exact answer is 21.4285714 but estimate is about 21

Step-by-step explanation:

to find percentage you need to divide the whole or total amount by the percent you want to find

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If there are 250 fish in the lake and 50 more are added each year write the linear equation
Anastasy [175]

Answer:

250x+50y is answer

Step-by-step explanation:

answer !!!!!!!!

8 0
3 years ago
Answer please!! Thanks!
sergij07 [2.7K]

Answer: 9.6 units

<u>Step-by-step explanation:</u>

The formula for the length of a diagonal (d) for a rectangular prism given length (L), width (w), and height (h) is: d² = L² + w² +  h²

Given: L = 8, w = 2, h = 5

 d² = 8² + 2² + 5²

 d² = 64 + 4 + 25

 d² = 93

√d² = √93

 d = 9.6

8 0
3 years ago
What is the equation that has a slope of −2 and passes through the point (1, −6)?
Agata [3.3K]

Answer:

y=-2x-4

Step-by-step explanation:

Just plugged in the points on desmos and then I just picked random points until they hit the point they wanted.

6 0
3 years ago
Mathematical connection A lighthouse casts a revolving beam of light as far as the pier
Alexandra [31]

The light's coverage area is given mathematically as i.e. Area=\pi d^{2}

Given that a lighthouse casts a revolving beam of light as far as they peir and asked the area is covered.

The revolving beam of light covers the whole space i.e entirely 360°

I.e. it forms a circle-like region

Area of circle = \pi r^{2}{ where r is the radius of circle}

Let's assume the distance traveled by light as "d"

as it forms a circular region, it forms a circle of radius "d"

Mathematical connection i.e. area of the region

⇒area of circular region=\pi d^{2} {where d is the radius of region}

Learn more about area here:

brainly.com/question/27683633

#SPJ9

4 0
2 years ago
What is the value of y?<br><br> A. 3<br> B. 4<br> C. 5<br> D. 6
77julia77 [94]
We know that each length/width needs to be equal. The width is 10, so we need to find something of y to equal 10. We have the equation 2y + 4 = 10. We need to isolate y. We can do that by subtracting 4 from both sides. This gives us 2y = 6. Next, we need to divide both sides by 2. This gives us y = 3.

The value of y is 3.
3 0
3 years ago
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