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2 years ago

12

Bhurashi did 8 out of 10 math problems and Bishwant did 11 out of 15 similar math problems. Express the number of problems solve

d by each of them in fractions and identify who did better performance.

1 answer:

ohaa [14]2 years ago

4 0

8 over 10 times by 100, and 11 over 15 times by 100 to find in percentage. Whichever number is bigger is your answer.

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What is 7x^2-8x-9=-3x rounded to the nearest hundredth

jonny [76]

Answer: 1.55, and -0.83

Step-by-step explanation:

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3 years ago

A number chosen at random 1 to 25 find the probability of selecting a greater number than 24

stira [4]

1/25 because the only number higher than 24 is 25 and you are choosing a number between 1 and 25

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3 years ago

Read 2 more answers

You bike 1 mile the first day of your training, 1.3 miles the second day, 1.9 miles the third day, and 3.1 miles the fourth d

JulsSmile [24]

Answer:

19.9 miles

Step-by-step explanation:

In this problem we have:

$d_1=1 mi$ is the distance travelled during the 1st day

$d_2=1.3 mi$ is the distance travelled during the 2nd day

$d_3=1.9 mi$ is the distance travelled during the 3rd day

$d_4=3.1 mi$ is the distance travelled during the 4th day

We notice that the difference between the distance travelled on the (n+1)-th day and the distance travelled on the n-th day doubles every day. In fact:

$d_2-d_1=0.3\\d_3-d_2=2\cdot 0.3 = 0.6\\d_4-d_3=2\cdot 0.6 = 1.2$

Which can be rewritten using the general formula:

$d_{n+1}-d_n=2(d_n-d_{n-1})$

This means that

$d_{n+1}=d_n+2(d_n-d_{n-1})$

By applying this formula recursively, we can find the 7th term, which is the distance travelled on the 7th day:

$d_1=1\\d_2=1.3\\d_3=1.9\\d_4=3.1\\d_5=3.1+2\cdot 1.2=5.5\\d_6=5.5+2\cdot 2.4=10.3\\d_7=10.3+2\cdot 4.8=19.9 mi$

So, the distance travelled on the 7th day is 19.9 miles.

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3 years ago

You have a 32-foot fence around a square garden. There are 4 equal sections. You paint 1/3 of one section of the fence.What frac

Vikki [24]

Where 1/3 of the 1 section had been painted, have each section have 3 parts. So each complete section will be 3/3. Where there is 4 section with 3 parts each, we have 12 parts. Thus, you painted 1/12 of the fence.

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3 years ago

I need this asap

erik [133]

Answer:

20

Step-by-step explanation:

The rectangle is 2 x 8.

2 + 2 + 8 + 8

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3 years ago