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Lubov Fominskaja [6]
3 years ago
14

Of the 300 television sets sold at an electronics store last month, 90 were flat screen TV's. What is the ratio of flat-screen T

V's to other TV's sold last month?
I don't know how to do this. I would appreciate some help. thanks!!​
Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
6 0

Answer:

300 television sets total

300 - 90 flat screens = 210

flat screens 90:210 other TVs

now divide each side of the ratio by a common factor to simplify. I'm going to use 30

flat screens 3:7 other TVs

this cannot be simplified any further so the ratio is

flat screens 3:7 other tvs

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A swimming pool has a length of 25 ft, a width of 15 fr, and a depth of 4 ft. What is the volume of the water in this pool when
timofeeve [1]

Answer:

1312.5 cubic feet

Step-by-step explanation:

Let the swimming pool be a rectangular prism

The volume of a rectangular prism is:

Volume = length * width * depth

Length = 25 (given)

Width = 15 (given)

The depth is 4ft, but they want the volume when water is 6 inches FROM THE TOP, that is, out of 4 feet, 6 inches (1/2 feet) IS NOT FILLED. So the depth of water is

4 - 1/2 = 3.5 feet

So, we can say

Depth = 3.5 (found)

Hence, the volume would be:

Volume = 25 * 15 * 3.5 = 1312.5 cubic feet

8 0
3 years ago
Woodland Mountain Park sells annual visitor passes for 12:50 last year the Park Race 53 and 500 in an annual visiting sales how
Lorico [155]

Answer:

4,280 tickets were sold

Step-by-step explanation:

3 0
4 years ago
Show all work to factor x^4-10x^2+9 completely
dimaraw [331]

Answer:

(x^{2}-9)(x^{2} -1)

Step-by-step explanation:

Step 1: Find what adds to _ and multiples to_

It needs to multiple to the 'c' term or 9

It needs to add to the 'b' term or -10

Step 2: Find the numbers

We know -9 and -1 make 10 and multiple to 9

-9 x -1 = 9

-9 + (-1) + -10

Step 3: Write equation in form a(x-r)(x-s)

a = 1

r = -9

s = -1

Plug in the equation to get the factored form of the equation:

(x^{2}-9)(x^{2} -1)

Therefore the factored form of the equation is (x^{2}-9)(x^{2} -1)

7 0
4 years ago
The circumference of the earth is 2.4x109 miles. if you traveled at an average of 8.5x10 miles per hour, how long would it take
pshichka [43]

Answer:

282 hr   <======= see below

Step-by-step explanation:

Distance / rate = time

2.4 x 10^9 mi / 85 m/hr   = 28235294 hr

 You must have left the power of 10 off of your speed

     probably should be   8.5 x 10^6  perhaps?   then answer is 282

<h3>If speed was 8.5 x 10^5   then answer becomes ~ 2820   </h3>
8 0
2 years ago
F(x) = -x2 - 9x - 22​
Alja [10]

(0, -22) for f(x)= -x^2-9x-22

5 0
3 years ago
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