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grin007 [14]
3 years ago
10

Sisters Rosey and Valerie specialize in two different triathlon events. Rosey finds that her average cycling speed is 7 mph fast

er than Valerie's average running speed.
Rosey can cycle 32 miles in the same time that it takes Valerie to run 18 miles.
If Valerie's running speed is n miles per hour, solve for n.
Mathematics
1 answer:
Musya8 [376]3 years ago
6 0

Valerie's running speed is 16 miles per hour.

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Without solving determine the number of real solutions for each quadratic equation
seropon [69]

Answer:

b^2-4b+3=0

b²-3x-b+3=0

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either

b=3 or b=1

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2n^2 + 7 = -4n + 5

2n²+4n+7-5=0

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0=5+ 2x - x^2-x +3x^2

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3 0
3 years ago
The regular price of the soccer ball is $25. During the sale, it is 20 percent off. Use ratio reasoning to find x, the amount th
Evgen [1.6K]

$ 5 is taken is off the regular price

<em><u>Solution:</u></em>

Given that, Regular price of the soccer ball is $ 25

During the sale, it is 20 percent off

Let "x" be the amount that is taken off the regular price

Regular price = $ 25

Discount = 20 percent off

Which means, 20 % of regular price is taken off

x = 20 % of regular price

x = 20 % of 25

x = \frac{20}{100} \times 25\\\\x = 5

Thus $ 5 is taken is off the regular price

3 0
4 years ago
The price of sugar has increased from ₹32 per kg to ₹40 per kg. The percentage increase in the price of sugar is?
densk [106]

Answer:

Step-by-step explanation:

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%change=25%

3 0
3 years ago
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siniylev [52]

Answer:

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Step-by-step explanation:

6.5 = -3 + n

+3     +3            Add 3 to both sides

9.5 = n

If this answer is correct, please make me Brainliest!

7 0
4 years ago
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MA_775_DIABLO [31]
<span>I think its A= 62% and B=37%  and sorry for the answer Brainly asked me</span>
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