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gayaneshka [121]
2 years ago
10

Sam bought some apples at 60c each and sold all but 5 of them at R1,00 each. If he made a profit of R5,00, how many apples did h

e buy?​
Mathematics
1 answer:
ivann1987 [24]2 years ago
4 0

Answer:

5

Step-by-step explanation:

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An angle that has a supplement also has a complement. Always, sometimes, or never?
Assoli18 [71]
So the problem ask to what could be the right choice among the three that could support the said statement in you problem that tells that an angle that has a supplement also has a complement and the best answer would be that it is ALWAYS be TRUE. I hope you are satisfied with my answer 
8 0
3 years ago
10. A weight hangs on a spring. The vibration period of that weight is the time in which it makes a complete cycle in motion. Su
Alenkinab [10]

The vibration period of the spring will be 0.2 seconds

<em><u>Explanation </u></em>

The relationship between the vibration period "T" (in seconds) and the weight "w" (in kilograms) is given by...

T= 2\sqrt{\frac{w}{200}}

Given that, the weight(w) = 2.0 kilograms

So, <u>plugging w = 2.0</u> into the above equation, we will get...

T= 2\sqrt{\frac{2.0}{200} } \\ \\ T= 2\sqrt{\frac{1}{100} }\\ \\ T= 2*\frac{1}{10}\\ \\ T= \frac{1}{5}=0.2

So, the vibration period of the spring will be 0.2 seconds.

8 0
3 years ago
Need some more help please!
Vikki [24]

For this case we have that by definition\pi equals 180 degrees.

We must convert 135 degrees to radians, then:

135 * \frac {\pi} {180} =\\135 * \frac {3.14} {180} =\\\frac {423.9} {180} = 2.355

Rounding off we have:

2.4 radians.

Answer:

2.4 radians

3 0
3 years ago
The length of a rectangle is 12 ft longer than twice the width. If the perimeter is 90 ​ft, find the length and width of the rec
zavuch27 [327]

Answer: 102

Step-by-step explanation:

4 0
2 years ago
Someone PLZ tell me how to solve these cause I honestly don’t understand at ALL!!! Plz respond ASAP!!!!
adell [148]
First find all possible rational roots. To do this, find all the factors of the lowest order coefficient and the highest order coefficient. For #1, the highest order coefficient is 1 because the x^3 doesn't have a number in front of it. The lowest order coefficient is 30.

Here are all the factors:

Factors of 1 are: 1

Factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30

Now divide each factor of 30 (positive and negative), and divide them by each factor of 1.

All possible rational roots are:

-1, 1, -2, 2, -3, 3, -5, 5, -5, 6, -10, 10, -15, 15, -30, 30

Now we perform synthetic division like you have started to do. Try dividing the polynomial by each possible root. If the result has a remainder, that possible root does NOT work. Try another possible root. If there is not a remainder, you have found one of the roots.

For example, when dividing x^3 - 4x^2 -11x + 30 by the possible root 2, we get x^2 - 2x - 15 without a remainder. That means 2 is a root. From here we can factor the result to (x-5)(x+3).

So the roots for #1 are x = -3, 2, and 5.

Let me know if you need help with the others :)






7 0
2 years ago
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