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allsm [11]
3 years ago
9

720 pt/h= ? qt/min please show step by step

Mathematics
1 answer:
oee [108]3 years ago
3 0


1. 720 pt./hr.

2. 2 pt. = 1 qt.

3. 720/2 = 360

4. 360 qt./hr.

Now, since there are 60 mins. in 1 hr., multiply the number by 60.

5. 360(60) = 21600

6. 720 pt./hr. = 21,600 qt./min.
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in a test consisting of 90 questions, Ama answered 75% of the first 40 questions correctly. If she had to get a score of 80% in
Shalnov [3]

Answer:

total question =90

she obtained 75% of first 40 questions

  1. No. of question she got correct in first 40 = 75% * 40 = 30

2. in order to get 80% out of 90,

the no. of questions got correct by Ama = 80% * 90 = 72

3. As she already got 30 c0rrect in first 40 questions, the number of question she needs correct for remaining 50 = (72-30) = 42

percentage = 42/50*100% = 84%

3 0
3 years ago
Explain why a regular polygon cannot have an interior angle that is 40°.
Minchanka [31]

Answer:

Explained below.

Step-by-step explanation:

The formula for the interior angle of any regular polygon is given as;

Interior Angle = 180(n - 2)/n

Where n is number of sides

We are told the interior angle is 40°

Thus;

180(n - 2)/n = 40

Cross multiply to get;

180n - 360 = 40n

180n - 40n = 360

140n = 360

n = 360/140

n = 2.57

Number of sides of a regular polygon cannot be in decimal nor can it have less than 3 sides.

Thus, a shape with interior angle of 40 cannot be a polygon.

8 0
2 years ago
I need help on number 8 and please show how you solved it :))
dmitriy555 [2]

Answer:

32.04% to 2 decimal places.

Step-by-step explanation:

As a fraction it is 17.3 / 54

To get the percentage we multiply by 100:

= (17.3/54) * 100

= 32.04%

8 0
3 years ago
How do you solve number 13 and 14?
Ulleksa [173]
This is what I got hope u get it right gl

3 0
3 years ago
A 100 gallon fish tank fills at a rate of x gallons per minute. The tank has already been filling for 5 minutes. the function f(
Alexxx [7]

Answer:

Shifted 5 unit right side then stretched vertically by the factor 100

Step-by-step explanation:

Here, parent function,

f(x)=\frac{1}{x}

Transformed function,

f(x) = \frac{100}{x-5}

Since, if a function f(x) gives cf(x), where c is any number,

Then the function was vertically stretched by factor c,

While, the function gives f(x-c),

Then the function was shifted c unit right.

Hence, the graph of f(x)=\frac{1}{x} was shifted 5 unit right side then stretched vertically by the factor 100 to create the graph of f(x)=\frac{100}{x-5}

4 0
3 years ago
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