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Reptile [31]
4 years ago
9

Help!

Mathematics
1 answer:
cricket20 [7]4 years ago
4 0

Answer:

70% = \frac{70}{100} = \frac{7}{10} = 0.7

20% = \frac{20}{100} = \frac{1}{5} = 0.2

Step-by-step explanation:

We know that x% is represented by the fraction \frac{x}{100}.

Now, in the first part, we are given two percentages 75% and 70%.

Now, 75% = \frac{75}{100} = 0.75

and 70% = \frac{70}{100} = \frac{7}{10} = 0.7

Therefore, the second option is correct.

Again, in the second part, we are given two percentages 20% and 25%.

Now, 20% = \frac{20}{100} = \frac{1}{5} = 0.2

and 25% = \frac{25}{100} = \frac{1}{14} = 0.25

Therefore, the third option is correct. (Answer)

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I understand the homework, but question 9. Could someone please help? This assignment is due on Friday (8/21/2020)
Valentin [98]

Answer:

I think B or C I'm not sure but I hope this helps!

Step-by-step explanation:

4 0
3 years ago
A pigeon can fly at a speed of 84 kilometers per hour. How long does it take the pigeon to fly 7 kilometers?
navik [9.2K]
Hey there,
Question : <span>A pigeon can fly at a speed of 84 kilometers per hour. How long does it take the pigeon to fly 7 kilometers?</span>

Answer :84 km = 1 hr
1 km = 1 / 84
         = 1 / 84 hr
7 km = 1 / 84 x 7
         = 1 / 12 hr
1 / 12 hr = 5 min

Hope this helps :D

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4 0
4 years ago
Could someone help me on 6 7 and 8? So confused!!!!
Radda [10]
7. We know that they must all add up together to get 90 degrees because of the symbol show the right angle. 
We can use this to form and solve an equation:
2x +1x + 30 = 90
3x+30 = 90  (add the x's together)
3x = 60    (subtract both sides by 30 to get the x's alone)
x =20  (divide by 3 to get what 1x is equal to)

(The next question is very similar)
8. To solve this, we need to know what all the x's together are equal to.
Since angles on a straight line add up to 180 degrees -we can make an equation:
4x+x+30 = 180 
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Hoped this helped - please ask if anything doesn't make sense!
5 0
4 years ago
How do you find the average rate of change through an interval
soldier1979 [14.2K]
In order to find average rate of change over an interval, do the y2-y1/x2-x1. Solve y for x=9 and x= 4
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7 0
3 years ago
Write an equation for a translation 1 unit down and 5 units right of y=|x|.<br> (y=[blank])
inn [45]

Answer:

Hence the corresponding equation of the given problem will be:

y'=|x-5|-1

Step-by-step explanation:

Let y' denote the corresponding equation after the translation of the given function y

We are given a equation of a function as:   y=|x|.

Now we have to write an equation such that there is a translation 1 unit down and 5 units right of y=|x|.

We know that for any function f(x) the translation 'a' units down is given by:

f(x)-a

And the translation 'b' units right of a function g(x) is given by:

g(x-b)

Hence the corresponding equation of the given problem will be:

y'=|x-5|-1



7 0
3 years ago
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