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anygoal [31]
3 years ago
13

William cycles at a speed of 15 miles per hour. he cycles 12 miles from home to school. If he increases his cycling speed by 5 m

iles per hour, how much faster will he reach his school?
Mathematics
1 answer:
Pani-rosa [81]3 years ago
8 0
The time will be 48 because 5*4=20, so 12*4=48
now william reaches faster 20 miles that 20-5=15 5*3=15 so 12*3=36
therefore william reaches school 12 minutes faster.

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Alisiya [41]
Simple...

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8 0
3 years ago
Read 2 more answers
1) You are designing a new kiddie soccer arena. The area of the rectangular
nikdorinn [45]

Answer:

The length of the rectangular field is 12 ft and the width is 5 ft.

Step-by-step explanation:

The area of a rectangle is:

\text{Area} = \text{length}\times \text{width}

The area of a rectangular field is, <em>A</em> = 60 ft.

The length of the field is:

l = w + 7

Compute the width of the field as follows:

\text{Area} = \text{length}\times \text{width}

60=(w+7)\times w\\\\60=w^{2}+7w\\\\w^{2}+7w-60=0\\

Factorize the last equation by splitting the middle term as follows:

w^{2}+7w-60=0\\w^{2}+12w-5w-60=0\\w(w+12)-5(w+12)=0\\(w-5)(w+12)=0

Now, since the width of rectangular field cannot be negative, the width is 5 ft.

Compute the length as follows:

l = w + 7

 = 5 + 7

 = 12

The length of the rectangular field is 12 ft.

7 0
3 years ago
A student has a test grade of 85%. If the student does extra problems and his grade raises by 15% of the test, what would be the
ruslelena [56]
Yes he is receiving a perfect score now
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