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Anuta_ua [19.1K]
3 years ago
10

Brook rode her bike 7 miles in 30 minutes. Joshua rode his bike 25 miles in 2 hours. which one is faster. HEEEEEEELLLLLLLLLLLLLL

PPPPPPPPP
Mathematics
1 answer:
pantera1 [17]3 years ago
4 0

Answer:

Brook is faster.

Step-by-step explanation:

1 hour=60 minutes

2 hours=2*60=120 minutes

-------------

7 miles in 30 minutes vs 25 miles in 120 minutes

7/30=0.233...mile per minute

25/120=0.20833...mile per minute

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Riley makes a mistake in step 2 while doing her homework. what was her mistake? startfraction x over x squared minus 5 x 6 endfr
maw [93]

The mathematical mistake that Riley made is that:
"She used the wrong common denominator." (Option A)

<h3>What is a Common Denominator?</h3>

A common denominator is a factor that is similar to all the fractions in the sequence of equations.

Hence the correct answer is:

(2(2x² - 6x + 9))/((x-3) (x-2) (x+3))

See the correct sequence of steps below:

Step One - the Expression is given as:

(x/(x-3)(x-2)) + (3/(x+3))

Step 2 - Find the common denominator and rewrite the expression so that the numerators are above the common denominators.

Hence we have:  (x (x+3) + 3(x-3) (x-2))/(x-3)(x-2)(x+3)

Step 3  Apply the Law of Multiplicative Distribution:

Hence we have  (x² +3x+3x²-9x-6x+16)/(x-3)(x-2)(x+3)

Step 4 -  Collect Like Items

This gives us: (x²+3x²)+(3x-9x-6x)+18/(x-3)(x-2)(x+3)

Step 5 Sort for like coefficients

This gives us:  ((1+3)x² +(3-9-6) * x + 18)/(x-3)(x-2)(x+3)

Step 6 -  check for the sum or difference

This gives us: (4x²+(3-9-6) * x+ 18)/(x-3)(x-2)(x+3)

We simplify and factor the expression to get

(2(2x²-6x+6)/(x-3)(x-2)(x+3).

See the attached for full question.

Learn more about Common Denominators at:

brainly.com/question/542317

4 0
2 years ago
Vicky made a recipe for 144 fluid ounces of scented candle wax how many one cup candle molds can she fill with the recipe
san4es73 [151]
Well,

1 cup= 8 oz.

If there is 144 ounces...'

Divide 8 into 144

144 divided by 8=

18

She can make 18 cups...

Hope this helps :)

3 0
3 years ago
2x &lt; -12 please solve this
melisa1 [442]

Answer:

x<−6 is your answer. <3

3 0
3 years ago
P. 14.1
irakobra [83]

Answer:

. a = 15, b = 20 2. a = 5, b = 12

N. 25

U. 9

3. a = 13, b = 84

4. a = 65, b = 72

O. 97

5. a = 6, b = 17.5

6. a = 6-, b = 7

3'

H. 116.6

N. 60

Find the side length b of the right triangle with the given

hypotenuse c and side length a. Round your answer to the

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G. 30

O. 13

7. c = 61, a = 11

8. C = 82, a = 80dis is the good kid ok

Step-by-step explanation:

5 0
3 years ago
There are 3 cats in a room and no other creatures. Each cat has 2 ears 4 paws and 1 tail
HACTEHA [7]
If you’re asking how many ears, paws, and tails there will be in total, well just multiply 2 by 3, 4 by 3, and 1 by 3!
2 x 3 = 6
4 x 3 = 12
1 x 3 = 3
Is that it?
6 0
3 years ago
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